E1786 v15 Application for funding from the World Bank Global Environment Facility Weihai Botong Thermoelectricity Limited Liability Company Environmental Audit Report Weihai Botong Thermoelectricity Limited Liability Company Weihai Environmental Protection Research Institute Co., Ltd. August 2011 Contents 1 PREFACE .................................................................................................................................................. 1-1 2 OVERVIEW .............................................................................................................................................. 2-1 2.1 CORPORATE PROFILE .......................................................................................................................... 2-1 2.2 ORGANIZATION ................................................................................................................................... 2-1 2.3 AUDITING DESCRIPTION ...................................................................................................................... 2-1 2.3.1 Objective and significance of auditing ..................................................................................... 2-1 2.3.2 Auditing basis ........................................................................................................................... 2-1 2.3.3 Auditing scope and time ........................................................................................................... 2-4 2.3.4 Executive standards .................................................................................................................. 2-4 3 PROFILE OF EXISTING PROJECT ..................................................................................................... 3-1 3.1 GEOGRAPHICAL POSITION ................................................................................................................... 3-1 3.2 PROJECT PROFILE ................................................................................................................................ 3-1 3.3 PLANE LAYOUT OF PLANT AREA.......................................................................................................... 3-2 3.4 PROCESS FLOW AND DRAINAGE PROCESS ............................................................................................ 3-4 3.5 MATERIALS CONSUMPTION ............................................................................................................... 3-13 3.5.1 Raw and auxiliary materials consumption ............................................................................. 3-13 3.5.2 Coal ........................................................................................................................................ 3-13 3.5.3 Limestone................................................................................................................................ 3-13 3.5.4 Water consumption ................................................................................................................. 3-13 3.5.5 Products.................................................................................................................................. 3-14 4 DISCHARGE OF MAIN POLLUTANTS AND MEASURES FOR PREVENTION AND CONTROL 4-1 4.1 DISCHARGE OF ATMOSPHERIC POLLUTANTS AND MEASURES FOR PREVENTION AND CONTROL ........... 4-1 4.1.1 Boiler flue gas .......................................................................................................................... 4-1 4.1.2 Dust pollution prevention and control ...................................................................................... 4-4 4.1.3 Summary ................................................................................................................................... 4-5 4.2 WASTEWATER DISCHARGE AND MEASURES FOR PREVENTION AND CONTROL ..................................... 4-5 4.3 NOISE POLLUTION PREVENTION AND CONTROL ................................................................................... 4-7 4.3.1 Noise level at each noise source and measures for prevention and control ............................. 4-7 4.3.2 Noise level after treatment measures are applied..................................................................... 4-8 4.4 SOLID WASTE DISCHARGE AND MEASURES FOR PREVENTION AND CONTROL ...................................... 4-9 4.5 ANALYSIS OF ENERGY CONSERVATION POTENTIAL AND IMPROVEMENT PLAN .................................. 4-10 4.5.1 Operating temperature of boiler ............................................................................................. 4-10 4.5.2 Turboset operating performance and efficiency ..................................................................... 4-10 4.5.3 Frequency control speed regulation device for matching fan of boiler .................................. 4-11 4.5.4 Effect of energy conservation and emission reduction after improvement ............................. 4-12 5 ENVIRONMENTAL MANAGEMENT AND MONITORING ............................................................ 5-1 5.1 ENVIRONMENTAL MANAGEMENT ........................................................................................................ 5-1 5.1.1 Environmental management organization ................................................................................ 5-1 5.1.2 Specific duties and authority .................................................................................................... 5-2 5.2 ENVIRONMENTAL MONITORING .......................................................................................................... 5-3 5.2.1 Exhaust gas online monitoring ................................................................................................. 5-3 5.2.2 Routine monitoring by Weihai Environmental Monitoring Station .......................................... 5-3 5.3 SUMMARY........................................................................................................................................... 5-4 6 POWER PLANT SAFE PRODUCTION MANAGEMENT ................................................................. 6-5 6.1 SAFE PRODUCTION MANAGEMENT STATUS QUO .................................................................................. 6-5 6.2 RELATED SAFETY MANAGEMENT SYSTEM........................................................................................... 6-5 6.3 IMPLEMENTATION OF SAFE PRODUCTION MANAGEMENT SYSTEM ....................................................... 6-5 6.4 SUMMARY........................................................................................................................................... 6-6 7 PROFILE OF OCCUPATIONAL HEALTH ......................................................................................... 7-1 7.1 OCCUPATIONAL DISEASE PREVENTION AND CONTROL ........................................................................ 7-1 7.2 MEASURES FOR OCCUPATIONAL DISEASE PREVENTION AND CONTROL ............................................... 7-1 7.3 OUTLAY FOR OCCUPATIONAL DISEASE PREVENTION AND CONTROL ................................................... 7-2 7.4 IMPLEMENTATION OF OCCUPATIONAL HEALTH PREVENTION AND CONTROL ....................................... 7-2 7.5 SUMMARY........................................................................................................................................... 7-3 8 RISKS AND MEASURES FOR PREVENTION AND CONTROL .....................................................8-1 8.1 PHYSICAL RISK IDENTIFICATION ......................................................................................................... 8-1 8.2 EQUIPMENT AND PRODUCTION EQUIPMENT HAZARD ANALYSIS .......................................................... 8-4 8.3 HUMAN FACTORS, MANAGEMENT FACTORS AND EXTERNAL ENVIRONMENTAL FACTORS ................... 8-5 8.4 IDENTIFICATION OF FIRE, EXPLOSION HAZARDS .................................................................................. 8-5 8.5 TOXICITY IDENTIFICATION .................................................................................................................. 8-6 8.6 PRODUCT DEVICE RISK IDENTIFICATION.............................................................................................. 8-6 8.7 SUMMARY........................................................................................................................................... 8-6 9 EMERGENCY PLAN ...............................................................................................................................9-1 9.1 POWER PLANT EMERGENCY PLAN PREPARATION................................................................................. 9-1 9.2 POWER PLANT EMERGENCY PLAN OVERVIEW...................................................................................... 9-1 9.2.1 Comprehensive emergency rescue plan for serious production accident ................................. 9-1 9.2.2 Special emergency rescue plan for serious production accident .............................................. 9-2 9.3 SUMMARY........................................................................................................................................... 9-6 10 SOCIAL IMPACT ...................................................................................................................................10-1 10.1 RELATIONSHIP BETWEEN ENTERPRISE AND EMPLOYEES ................................................................... 10-1 10.1.1 Personnel system .................................................................................................................... 10-1 10.1.2 Employee training .................................................................................................................. 10-1 10.2 RELATIONSHIP BETWEEN ENTERPRISE AND THE LOCAL RESIDENTS ................................................... 10-2 10.3 RELATIONSHIP BETWEEN ENTERPRISE AND SOCIETY ......................................................................... 10-2 10.4 SUMMARY......................................................................................................................................... 10-2 11 AUDITING CONCLUSION ...................................................................................................................11-1 11.1 CONCLUSION .................................................................................................................................... 11-1 11.2 MEASURES AND SUGGESTIONS .......................................................................................................... 11-2 1 Preface 1 Preface The objective of environmental auditing is to historically review the existing production facilities of power plant, identify the problems in production process, pollution prevention and control, environmental management, safety management, occupational health, risk prevention and control, emergency plan, social impacts, etc. and propose corresponding solutions. The application of environmental auditing can effectively reveal the problems in environmental management, urge related departments to intensify the awareness of environmental protection, enforce environmental protection policy strictly, as well as urge an enterprise to build a favorable and responsible image on the basis of long-term development and social responsibility, highlight environmental protection and thus to intensify the awareness of environmental protection of the society. Weihai Botong Thermoelectricity Limited Liability Company (hereinafter referred to as Botong Thermoelectricity) is a state-owned energy enterprise engaging in heat supply and power generation established in June 1998, mainly undertaking the task for providing industrial steam and civil heat supply to Weihai Economic and Technical Development Zone. The Company now boasts six boilers, three generator sets, with the installed capacity of 60MW and boiler capacity of 705t/h, 281 employees, total assets of RMB 597 million Yuan, including net assets of RMB 160 million Yuan. In 2010, the Company supplied heat of 449.81× 4GJ/a, 10 4 10 generated electricity of 16152.72× KWh/a and consumed standard coal of 0.2294 million t/a. Botong Thermoelectricity also consumes a huge quantity of coal, water resource and emitted massive pollutants including SO2, smoke, NO2, etc. into the atmosphere while generating electricity with coal. The Report conducts an environmental auditing to Botong Thermoelectricity in the aspects of existing production process, pollution prevention and control, environmental management, safety management, occupational health, risk prevention and control, emergency plan, social impact, etc. 1-1 Weihai Environmental Protection Research Institute Co., Ltd. 2 Overview 2 Overview 2.1 Corporate profile Weihai Botong Thermoelectricity Limited Liability Company (hereinafter referred to as Botong Thermoelectricity) is a state-owned energy enterprise engaging in heat supply and power generation established in June 1998, mainly undertaking the task for providing industrial steam and civil heat supply to Weihai Economic and Technical Development Zone. The Company now boasts six boilers, three generator sets, with the installed capacity of 60MW and boiler capacity of 705t/h, 281 employees, total assets of RMB 597 million Yuan, including net assets of RMB 160 million Yuan. 2.2 Organization See 2.2-1 for the organization chart of Botong Thermoelectricity. 2-1 Weihai Environmental Protection Research Institute Co., Ltd. 2 Overview Board of Directors General Manager Deputy General Deputy General Deputy General Deputy General Manager Manager Manager Manager Heat Supply Installation Design Office Customer Office Labor Union Materials Financial Enterprise Safety Production Operation Maintenance Building Center Department Center and Logistics Department Department Planning Training Technology Department Department Materials Department Department Department Department Construction Management Department 2-1 Weihai Environmental Protection Research Institute Co., Ltd. 2 Overview Figure 2.2-1 Organization Chart of Botong Thermoelectricity 2.3 Auditing description 2.3.1 Objective and significance of auditing 2.3.1.1 Objective Perform production site investigation, documents examination and necessary tests, analyze the environmental protection condition of enterprise, confirm the environmental protection level, find out existing problems and risks, analyze and compare the potential for environmental protection, propose practical measures and suggestions for environmental protection, provide authentic and reliable environmental protection information to the government, guide the enterprise to improve the level of environmental management and promote the sustainable development of economy and environment. 2.3.1.2 Significance 1. Needs for determining and releasing the environmental responsibility of enterprise The environmental responsibility refers to that born by the enterprise on environmental pollution treatment and ecological environment protection. The environmental auditing is applied to monitor, evaluate and identify the above responsibilities of enterprise, identify and release the responsibilities of the audited enterprise in a fair and special way, identify the scope and nature of responsibilities and protect the lawful rights of the enterprise. 2. Internal demands for sustainable operation of the enterprise The enterprise engaging in production, operation, market development, etc. must pay a particular attention to the environmental image and achievement. The mistake in environmental policy will bring challenges to the managers, lead to financial failure and even bankruptcy and liquidation. The enterprise can build a favorable internal and external environmental and ensure the sustainable development through the emphasis on environmental protection and active involvement in environmental treatment and protection. 3. Important components for management auditing of enterprise The environmental auditing supervises and evaluates the environmental management activities of enterprise in management plan, control procedure and control method, analyzes the internal factors affecting enterprise management benefit and efficiency, improves the control system for environmental management, urges the enterprise to rationally develop and utilize environmental resource in fulfilling the social responsibility. On this regard, the environmental auditing performing analysis and evaluation to the environmental management system is an important component of enterprise management and auditing. 4. Needs for developing the internal and domestic market The environmental auditing can assist the Chinese enterprises to develop the international market as well as the foreign enterprises to settle in China, thus to make contributions to global economic integration and realize the objective of “mankind has only one home - the earthâ€?. 2.3.2 Auditing basis 2.3.3 Basis of laws, regulations and policy 1. Environmental Protection Law of the People’s Republic of China (Dec. 26, 1989); 2. Law of the People’s Republic of China on the Prevention and Control of Environmental Noise Pollution (Apr. 1, 1996); 2-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 3. Law of the Peoples Republic of China on the Prevention and Control of Atmospheric Pollution (May 15, 1996); 4. Law of the People's Republic of China on the Prevention and Control of Water Pollution (Mar. 1, 1997); 5. Law of the People’s Republic of China on the Prevention of Environmental Pollution Caused by Solid Waste (Sep. 1, 2000); 6. Law of the People’s Republic of China on the Protection of Cultural Relics (Oct. 2002); 7. Law of the Peoples Republic of China on the Promotion of Cleaner Production (Jan. 1, 2003); 8. Law of the People's Republic of China on Appraising of Environment Impacts (Sep. 1, 2003); 9. Decision on Implementing Scientific Concept of Development and Strengthening Environmental Protection by the State Council (Guofa[2005] 39); 10. List of Construction Project Environmental Protection Classification Management (Order No. 2 of the Ministry of Environmental Protection, Aug. 2008); 11. The Guideline Catalogue for Industrial Restructuring (2011 version) (Mar. 27, 2011); 12. Huanjian [1993]324 Notice on Strengthening the Environmental Impact Evaluation Management of Projects Constructed with Loans from International Financial Organizations of the Ministry of Environmental Protection of the People’s Republic of China (Jun. 21, 1993); 13. Fagaihuanzi [2004]2505 Notice on the Printing and Distribution of Special Long-term Planning for Energy Conservation of the National Development and Reform Commission (Nov. 25, 2004); 14. Guofa [2005]39 Decision on Implementing the Scientific Concept of Development and Stepping up Environmental Protection by the State Council (2005); 15. Huanfa [2006]28 the Provisional Measure of Public Participating in Environmental Assessment of the Ministry of Environmental Protection of the People’s Republic of China (Mar. 2006); 16. Guofa [2007]15 Notice on the Printing and Distribution of the Integrated Work Program for Energy Conservation and Emission Reduction of the State Council (May 23, 2007); 17. Guofa [2009]38 Notice of the State Council on the Approval and Forwarding of the Suggestions of the National Development and Reform Commission and Other Departments on Controlling the Excess Production Capacity and Repeated Construction and Guiding the Healthy Development of Industries (Sep. 26, 2009); 18. Guofa [2010]7 Notice of the State Council on Further Strengthening the Elimination of Backward Production Capacities (Feb. 6, 2010); 19. Ordinance of Shandong Province on Environmental Protection (amended by the Standing Committee of Shandong Provincial People’s Congress on Dec. 7, 2001); 20. Method of Shandong Province for Implementing the Law of the People's Republic of China on Evaluation of Environmental Effects (approved by the 17th Meeting of the Standing Committee of the 10th Shandong Provincial People’s Congress on Nov. 25, 2005); Weihai Environmental Protection Research Institute Co., Ltd. 2-2 2 Overview 21. Method of Shandong Province for Implementing Law of the People’s Republic of China of the Prevention of Environmental Pollution Caused by Solid Waste; 22. Ordinance of Shandong Province on the Prevention and Treatment of Environmental Noise; 23. Ordinance of Shandong Province on the Prevention and Treatment of Water Pollution; 24. Suggestions of Shandong Provincial People’s Government on Implementing (Guofa[2005]39) Decision on Implementing Scientific Concept of Development and Strengthening Environmental Protection by the State Council (Luzhengfa [2006]72); 25. Notice of the General Office of Shandong Provincial People’s Government on Strengthening the Simultaneous Management of Environmental Impact Evaluation and Construction Project Environmental Protection Facilities in Three Aspects; 26. Notice of the General Office of Shandong Provincial People’s Government on Forwarding the Suggestions of Provincial Economic and Trade Commission on Speeding up the Elimination of Outmoded Products and Promoting Structural Optimization and Upgrading (Luzhengbanfa [2006]96); 27. Notice of Shandong Provincial People’s Government on Furthering Strengthening Urban Water Conservation (Luzhengfa [2007]4); 28. Notice of Shandong Provincial People’s Government on the Printing and Distribution of the Integrated Work Program for Energy Conservation and Emission Reduction (Luzhengfa [2007]39 of Shandong Provincial People’s Government); 29. Suggestions for further Implementing Environmental Evaluation and “Three Simultaneous Managementâ€? System (Shandong Provincial Environmental Protection Bureau Luhuanfa [2007]131); 30. Major Principles Shandong Provincial Environmental Protection Bureau for Handling with Serious Environmental Protection Problems (trial) (Luhuanfa [2007]178); 31. Implementation Suggestions for Building an Environmental Safety Prevention and Control System for the Whole Province (Luhuanfa [2009]80); 32. Suggestions of Weihai Municipal People’s Government on further Implementing Scientific Concept of Development and Strengthening Environmental Protection (Weihai Municipal People’s Government Weizhengfa [2006]71); 33. Suggestions of Weihai Municipal People’s Government on Implementing the Notice of Shandong Provincial People’s Government on Furthering Strengthening Urban Water Conservation (Luzhengfa [2007]4) (Weizhengfa [2007]19, Apr. 6, 2007); 34. Notice on further Strengthening the Regulated Management of Hazardous Wastes and Building a Hazardous Wastes Recycling and Exchange System in an All-around Way (Weihuanfa [2009]120); 35. Notice on Printing and Distribution of the Program for Publicizing Environmental Impact Evaluation Information of Construction Projects (Weihuanfa [2009]226). 2.3.3.1 World Bank’s regulations 1. World Bank OP 4.01/ (Environmental Evaluation) (Jan. 1999); 2. World Bank OP4.11 (Material Culture Resources, Jul. 2006; 3. World Bank OP/BP4.04 (Natural Habitat (Sep. 1995); 4. World Bank OP/BP4.12 (Involuntary Resettlement) (Jun. 1990); 2-3 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 5. World Bank OHS Guide for Thermal Power Stations (Jun. 18, 2008); 6. World Bank Information Acquisition Policy (Jul. 1, 2010). 2.3.4 Auditing scope and time The environmental auditing performed from 2008 to 2010 covers the whole plant of Botong Thermoelectricity. 2.3.5 Executive standards 2.3.5.1 Environmental quality standards 1. Ambient air Ambient Air Quality Standard (GB3095-1996) grade II is applied for SO2, NO2, TSP, PM10. See table 2.3-1 for details. Table 2.3-1 Ambient Air Quality Evaluation Standard Density limit (mg/m3) Pollutants Hourly Daily Annual Source of standard average average average SO2 0.50 0.15 0.06 NO2 0.24 0.12 0.08 Ambient Air Quality Standard TSP -- 0.30 0.20 (GB3095-1996) grade II PM10 -- 0.15 0.10 2. Underground water The Underground Water Quality Standard (GB/T14848-93) grade â…¢ is applied for underground. See table 2.3-2 for details. Table 2.3-2 Underground Water Quality Standard (unit: mg/L, excluding pH) Underground Water Quality Standard Pollutant name (GB/T14848-93) grade â…¢ pH 6.5-8.5 Total hardness CaCO3 (mg/L) ≤450 Sulfate (mg/L) ≤250 Permanganate indicator (mg/L) ≤3.0 Fluoride (mg/L) ≤1.0 Total coliform (mg/L) ≤3.0 Chloride (mg/L) ≤250 Nitrate nitrogen (mg/L) ≤20 Nitrite (mg/L) ≤0.02 Ammonia nitrogen (mg/L) ≤0.2 3. Environmental noise The Environmental Quality Standard for Noise (GB3096-2008) grade 1and 3 shall apply to the acoustic environment. See table 2.3-3 for the standard limit. Table 2.3-3 Environmental Noise (Unit: dB) Weihai Environmental Protection Research Institute Co., Ltd. 2-4 2 Overview Time Functional zone of noise Daytime Night Grade 1 55 45 Grade 3 65 55 2.3.5.2 Pollutant discharge standard 1. Atmospheric pollutant discharge standard The first time interval standard of Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) will apply for the exhaust gas discharged by boilers 1~3# (3× 75t/h). The second time interval grade B of Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) will apply for the exhaust gas discharged by boilers 4~5# (2× 130t/h). The third time interval standard will apply for the exhaust gas discharged by boiler 6# (1×220t/h). The standard limit of discharge is detailed in table 2.3-4. Table 2.3-4 Atmospheric Discharge Standard of Thermal Power Plant Discharge density (mg/m3) Pollutant First time interval Second time interval grade Third time interval name B 2007.5.1 2010.1.1 2007.5.1 2007.5.1 Smoke 200 100 50 50 SO2 1200 800 400 400 NOX 800 400 400 400 2. Sewage discharge standard The Wastewater Quality Standards for Discharge to Municipal Sewers (CJ343-2010) will apply for the discharge of sewage. The standard limit is detailed in table 2.3-5. Table 2.3-5 Standard of Water Quality of Sewage Discharged into Urban Sewers (Unit: mg/L, pH dimensionless) Ammonia Volatile SS CODCr BOD5 Sulfide Petroleum Item PH nitrogen phenol (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) Wastewater Quality Standards for Discharge to 6.5～ 400 500 350 45 1.0 20 1.0 Municipal 9.5 Sewers (CJ343-2010) GRADE B 3. Noise discharge standard Grade 3 of the Emission Standard for Industrial Enterprises Noise at Boundary 》 (GB12348-2008), 65dB in daytime, 55dB at night. 4. Solid waste storage standard Standard for Pollution Control on the Storage and Disposal Site for General Industrial Wastes (GB18599-2001). 2-5 Weihai Environmental Protection Research Institute Co., Ltd. 3 Profile of existing project 3 Profile of existing project 3.1 Geographical position Botong Thermoelectricity is situated at No. 221, South Qingdao Road. Its site is selected according to the General Urban Planning of Weihai City (2004～2020) and the Urban Heating Power Planning of Weihai City. The plant site neighbors Qingdao Road in the west, Xujia River crossing the urban area in the north and northwest, Zhongli Village 260 m in the east isolated by Huanghai Road, Songjiawa Village (Lanshan Town) 180 m in the south isolated by Botong Road and railway viaduct (Weihai Railway Station to Weihai New Port). The project has a favorable geographical position and convenient transportation. Geographical position of Botong Thermoelectricity is detailed in figure 3.1-1. 3.2 Project profile Weihai Botong Thermoelectricity Limited Liability Company (hereinafter referred to as Botong Thermoelectricity) is a state-owned energy enterprise engaging in heat supply and power generation established in June 1998, mainly undertaking the task for providing industrial steam and civil heat supply to Weihai Economic and Technical Development Zone. The Company now boasts six boilers, three generator sets, with the installed capacity of 60MW and boiler capacity of 705t/h, 281 employees, total assets of RMB 597 million Yuan, including net assets of RMB 160 million Yuan. In 2010, the Company supplied heat of 449.81× 4GJ/a, 10 generated electricity of 16152.72× 4KWh/a and consumed standard coal of 0.2294 million 10 t/a. The basic information on Botong Thermoelectricity is detailed in table 3.2-1. The main environmental protection facilities are summarized in table 3.2-2. Table 3.2-1 Basic Information on Botong Thermoelectricity Total Unit scale Item Boiler tonnage (t/h) capacity Remarks (MW) (MW) Approved by the State Environmental Protection Bureau (present Ministry of Environmental Protection of the People’s Boilers 1#~3# Republic of China) in Dec. 1996, accepted 3×75 2×15 30 Units 1#-2# by Shandong Provincial Environmental Protection Bureau (present Provincial Environmental Protection Department) in 2004. Approved by Shandong Provincial Boiler 4#, boiler Environmental Protection Bureau (present 2×130 1×30 30 5#, unit 3# Provincial Environmental Protection Department) in Aug. 2004 Approved by Weihai Municipal Boiler 6# 1×220 — — Environmental Protection Bureau in Jun. 2010 Capacity 3× 75+2× 130+1× 220 2×15+1× 30 Heating period: Whole 2×15+1× 30 Operating 1×75+2× 130+1× 220 60 — plant method Non-heating period: 1×15 1× 130 Figure 3.1-1 Geographical Position (scale 1: 1260) 3-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company Table 3.2-2 Existing Environmental Protection Facilities Item Treatment facilities Exhaust funnel Effect Chimney 1# 99.4% dedusting Boilers 1#~3# apply three-electric field (120m high, inner efficiency, qualified electrostatic precipitator diameter of outlet discharge is 3.0m) Dedusting 99.78% integrated Boiler 4# applies three-electric field electrostatic facilities Chimney 2# dedusting efficiency, precipitator (150m high, inner qualified discharge # # diameter of outlet 99.8% integrated Boilers 5 ~6 apply four-electric field is 5.0m) dedusting efficiency, electrostatic precipitator qualified discharge Desulfuration Boilers 1#~3# apply calcium spraying efficiency above — desulfuration inside boiler 50%, qualified Desulfuration discharge facilities # # Desulfuration Boilers 4 ~6 apply recirculating fluidized bed efficiency above boiler+limestoneï¼?gysum wet method — 90%, qualified desulfuration, discharge Effective reduction of Coal yard dust Cofferdam, spray system, coal sinking pool, etc. — coal dust 99% production wastewater will be used. Domestic sewage and some industrial wastewater Wastewater will be drained into the sewage treatment plant of — Qualified discharge Weihai Zhongrong Anxin Water Resource Development Co., Ltd. for treatment. Low noise equipment, silencer, rational Noise acceptable at Noise — distribution, landscaping, etc. boundary Ash and slag handling system, ash silo; the ash and slag are handled separately and then utilized Flyash, slag by Botong New Building Materials Co., Ltd. to — 100% recycling the north of the plant site; ash silo capacity: 2× 560m3 Domestic Collect to Weihai Garbage Disposal Plant — Zero discharge garbage 3.3 Plane layout of plant area The existing project of Botong Thermoelectricity covers an area of 0.15 million m2. The whole plant area is distinctive in production process and functional zones. The main power house is in south-north direction, with the fixed end facing the west and the expansion end facing the east. The main power house area is provided with turbine house, deoxygenization bunker bay, boiler house from the south to the north. Dirt catcher, flue and chimney, broken coal handling system, dry coal shed, etc. are arranged in sequence behind the boiler. The coal yard is arranged in the east. The main control building and power transformation and distribution facilities are arranged to the south of turbine house. The chemical water treatment system, natural ventilation cooling tower, etc. are arranged west of the turbine house; the ash silo and Weihai Botong New Building Materials Co., Ltd. are situated to the north of the plant area; the main power house area is isolated by greenbelts and roads in plant area into front area of the plant and auxiliary production area; such area is mainly composed of office building, staff dining hall, bathing pool, guest house, etc. General layout of Botong Thermoelectricity is shown in figure 3.3-1. Weihai Environmental Protection Research Institute Co., Ltd. 3-2 3 Profile of existing project General drain outlet Ash silo Semi-closed coal yard Integrated desulfuration Limestone powdercabin building Desulfuration Reserved denitration outside boiler device Boiler 5# four-electric Three-electric field field dedusting Temporary slag yard dedusting Boiler 6# Boiler Boiler 5# Boiler 4# Boiler 3# Boiler 2# 1# Figure 3.3-1 General Layout of Botong Thermoelectricity 3-3 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 3.4 Process flow and drainage process 1. Cogeneration boiler Boilers 1#~5# are cogeneration boilers, whose major process flow is: the coal at coal yard is screened, crushed and conveyed into boiler for burning; the chemical energy of coal inside boiler is changed to heat energy; the boiler produces steam, which will enter turbine to impel the generator for changing the mechanical energy into electricity; the electricity is then supplied to customers through power distribution system. Some steam in turbine will enter backpressure unit 2# and be discharged at the pressure of 0.981MPa to steam users; some steam will enter extraction condensing unit and be discharged at the pressure of 0.981MPa to steam users and for backheating; few steam will act and then be discharged to low pressure heater for heating the condensed water; the rest steam will work and be discharged to condenser and be cooled into condensed water by circulating water and be heated by low pressure heater and then be supplied to the deaerator. Then, it will be heated by high pressure heater together with the make-up water and then be pumped into boiler to become steam, thus forming a cogeneration system circulating steam and water. 2. Heat supply boiler Boiler 6# is a heat supply boiler, whose major process flow is: the coal at coal yard is screened, crushed and conveyed into boiler for burning; the chemical energy of coal inside boiler is changed to heat energy; the boiler produces steam and supplies heat supply network water to users through pumps; the users apply central heating radiator for heat supply; the heat supply network water with reduced temperature flows back to the coagulator. The process flow of boilers 1#~5# and sewage production process are detailed in figure 3.4-1. The process flow of boiler 6# and sewage production process are detailed in figure 3.4-2. 3. External desulfurzation process Such process is mainly composed of flue gas system, SO2 absorption system, absorbent preparation system, gypsum treatment system, wastewater treatment system, etc. â‘  Flue gas system When the FGD device is operating, the flue gas from boiler draught fan will enter absorption tower for desulfuration. Then, after the water mist is removed by demister, the flue gas will be discharged into the atmosphere by brick flue. â‘¡ Absorbent preparation system Limestone slurry made of limestone will be used as absorbent. Limestone powder will be delivered to limestone powder silo by pneumatic transmission system, and after being measured by electric star feeder at the bottom of powder silo and belt weighing feeder, the limestone powder will be delivered to limestone slurry tank and made into limestone slurry with the density of 25%. The slurry will be pumped to absorption tower for use. The outlet of slurry pump is provided with flow rate, density measurement and control devices, which can perform automatic control according to flue gas and SO2 density. â‘¢ Absorption tower system The absorption tower system is a vital component of flue gas desulfuration project, mainly comprising an absorption tower, a demister, a circulating slurry pump and an oxygenization fan, etc. The absorption tower is a spray tower. The flue gas enters into the high speed absorption zone of absorption tower, collides with absorption slurry sprayed by nozzle in reverse direction with a high speed, conducts chemical reaction with absorbent, thus to remove the sulfur dioxide in flue gas. The purified flue gas will be discharged after demisting. Weihai Environmental Protection Research Institute Co., Ltd. 3-4 3 Profile of existing project In the circulating slurry pool of absorption tower, calcium sulfite will be oxidized by air into calcium sulfate. The gypsum drainage pump will deliver gypsum slurry to gypsum dewatering system through absorption tower. â‘£ Gypsum slurry dewatering system 2H The slurry drained by absorption tower is a mixture of gypsum (CaSO4· 2O) and other salts, including MgSO4, MgCL2, Na2SO4, NaCL, CaCL2, limestone (CaCO3), calcium fluoride (CaF2), ash content, etc. The gypsum slurry will be delivered to gypsum swirler station by drainage pump for first dewatering and then buffered by gypsum slurry box and fall on vacuum belt dewatering machine for secondary dewatering. The residual water quantity of gypsum discharged by dewatering machine will not exceed 10%. The gypsum will fall into gypsum storeroom from the trail of vacuum belt dewatering machine. ⑤ Process water system According to the water quality required by each process, the main water consumption processes are divided as following: flushing water for FDG’s operation of demister; flushing water for slurry conveying equipment, running piping, storage tank, belt dewatering machine, etc.; make-up water for absorption tower slurry pool, water for absorbent preparation system; water for vacuum pump, cooling water for desulfuration system auxiliary machinery, fan, etc., water for slurry pump shaft seal, etc. The process water system will be supplied by reuse water. All the wastewater will be recycled. â‘¥ Wastewater treatment system The wastewater flowed from gypsum swirler will be pumped into wastewater treatment system by wastewater pump and it will enter into purified water tank in sequence after neutralization, sedimentation, flocculation, concentration, purification, etc. Most of the purified water will be recycled and little water will be used by Botong New Building Materials Co., Ltd. for ash mixing. The sludge reaching a certain quantity at the bottom of concentration and purification pool will be delivered into centrifugal dewatering machine for dewatering. The dewatered gypsum will be transported to Botong New Building Materials Co., Ltd. for recycling. The water discharged by dewatering machine will be used for dry ash mixing. The process of desulfuration system is detailed in figure 3.4-3. 3-5 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 锅炉烟气 主蒸汽 抽汽供热 ç…¤ æ–— å?‘电机 汽轮机 çœ?煤器 排 é”… 污 空预器 除 炉 å°˜ 烟气 器 å‡?汽机 循环冷å?´æ°´ 输 ç…¤ 石ç?°çŸ³ç²‰ 引风机 机 烟囱 ç?° 煤棚 炉 循环冷å?´æ°´æ³µ 炉外脱硫 补充水 除氧器 渣 化学水处ç?†è£…ç½® ç?°åº“ 自æ?¥æ°´ å‡?结 临时渣场 化 æ°´æ³µ 除ç?°ç³»ç»Ÿ å­¦ 废 给水泵 æ°´ 中 å’Œ æ±  低压加热器 高压加热器 建æ??厂综å?ˆåˆ©ç”¨ 建æ??厂综å?ˆåˆ©ç”¨ 建æ??厂综å?ˆåˆ©ç”¨ 回用 Figure Boilers 3.4-1 1#~5# process flow and process of sewage production Weihai Environmental Protection Research Institute Co., Ltd. 3-6 3 Profile of existing project 自æ?¥æ°´ Tap water 中 å’Œ æ±  Neutralization pool 回用 Recycling 化学水处ç?†è£…ç½® Chemical water treatment device 补充水 Make-up water 循环冷å?´æ°´ Circulating cooling water 循环冷å?´æ°´æ³µ Circulating cooling water pump å?‘电机 Generator 抽汽供热 Steam extraction and heat supply 汽轮机 Turbine 主蒸汽 Main steam 煤斗 Coal bucket 排污 Drainage 锅炉 Boiler 锅炉烟气 Boiler flue gas çœ?煤器 Economizer 空预器 Air preheater 烟气 Flue gas 除尘器 Dirt catcher 锅炉烟气 Boiler flue gas 引风机 Draught fan 炉外脱硫 External desulfurzation 输煤机 Coal conveyor 烟囱 Chimney 煤棚 Coal shed 石ç?°çŸ³ç²‰ Limestone powder 3-7 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company ç?°åº“ Ash silo 除ç?°ç³»ç»Ÿ Ash handling system 建æ??厂综å?ˆåˆ©ç”¨ Comprehensive utilization by building materials plant 建æ??厂综å?ˆåˆ©ç”¨ Comprehensive utilization by building materials plant å‡?汽机 Steam turbine å‡?结水泵 Condensed water pump 低压加热器 Low pressure heater 除氧器 Deaerator 炉渣 Slag 给水泵 Feed pump 高压加热器 High pressure heater 建æ??厂综å?ˆåˆ©ç”¨ Comprehensive utilization by building materials plant 临时渣场 Temporary slag yard Weihai Environmental Protection Research Institute Co., Ltd. 3-8 3 Profile of existing project 主蒸汽 çœ?煤器 排 é”… 污 空预器 除 炉 å°˜ 烟气 器 循环水泵 碎 工艺水 石ç?°çŸ³ 储仓 ç…¤ å†?生液水泵 引风机 机 炉 渣 ç?° 煤场 综å?ˆå¾ªçŽ¯æ±  除氧器 缓冲器 脱硫石è†? 软化水处ç?†è£…ç½® 生水 软 化 废 æ°´ 除ç?°ç³»ç»Ÿ 给水泵 炉渣综å?ˆåˆ©ç”¨åŽ‚ 粉煤ç?°ç»¼å?ˆåˆ©ç”¨åŽ‚ 高压加热器 图2ï¼?5 拟建工程工艺æµ?程图 Figure 3.4-2 Boiler 6# Process Flow and Sewage Production Process 生水 Raw water 3-9 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 软化水处ç?†è£…ç½® Softened water treatment device 软化废水 Softened wastewater 除氧器 Deaerator 给水泵 Feed pump 高压加热器 High pressure heater 缓冲器 Buffer 炉渣 Slag 主蒸汽 Main steam 排污 Drainage 锅炉 Boiler çœ?煤器 Economizer 空预器 Air preheater 烟气 Flue gas 除尘器 Dirt catcher ç?° Ash 炉渣综å?ˆåˆ©ç”¨åŽ‚ Slag comprehensive utilization plant 除尘器 Dirt catcher 引风机 Draught fan 除ç?°ç³»ç»Ÿ Ash handling system 粉煤ç?°ç»¼å?ˆåˆ©ç”¨åŽ‚ Coal ash comprehensive utilization plant 脱硫石è†? Desulfuration gypsum 综å?ˆå¾ªçŽ¯æ±  Integrated circulating pool å†?生液水泵 Regenerant pump 循环水泵 Circulating water pump 工艺水 Process water 图 2ï¼?5 拟建工程工艺æµ?程图 Figure 2-5 Process flow of the proposed project 石ç?°çŸ³å‚¨ä»“ Limestone storage bunker 碎煤机 Coal breaker Weihai Environmental Protection Research Institute Co., Ltd. 3-10 3 Profile of existing project 煤场 Coal yard 3-11 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 烟囱 除尘å?Ž 2 烟气 工艺水 1 7 6 9 3 纯碱 工艺水 5 4 8 工艺水 Process water 除尘å?ŽçƒŸæ°” Dedusted flue gas 烟囱 Chimney 纯碱 Soda ash Figure 3.4-3 Desulfuration System Process Flow Weihai Environmental Protection Research Institute Co., Ltd. 3-12 3 Profile of existing project 3.5 Materials consumption 3.5.1 Raw and auxiliary materials consumption Main energy and raw materials consumed by Botong Thermoelectricity from 2008 to 2010 are listed in table 3.4-1. Table 3.4-1 Main energy and raw materials consumed by Botong Thermoelectricity from 2008 to 2010 Main energy Annual consumption Remarks and raw materials 2008 2009 2010 Standard coal 10,000 t/a 156600 208908 229423 Water 10,000 t/a 111.1 146.9 183.6 Electricity 10,000 kwh 2279 3295 3420 Diesel t/a 46 51 57 Ignite the boiler Hydrochloric t/a 69 77 85 Chemical water treatment acid (31%) Sodium hydroxide t/a 65 72 80 Chemical water treatment (30%) Add drug to boiler to improve Ammonia water t/a 1.2 1.4 1.5 pH and reduce pipeline (25%) corrosion 3.5.2 Coal Botong Thermoelectricity will apply coal produced by Shanxi Datong and be supplied by a long-term contracted supplier. The fuel will be shipped to Weihai Port by Qinhuangdao and then be transported by dump trucks. The highway transportation route is Weihai Port, Haibu Road, Daqing Road, Hong Kong Road, Hainan Road, Huanghai Road, coal yard of plant, with the distance of 7km. Statistical data of coal quality is shown in table 3.4-2. Table 3.4-2 Coal Quality Analysis Data of Current Project Item Car(ï¼…) Har(ï¼…) Oar(ï¼…) Nar(ï¼…) Sar(ï¼…) Aar(ï¼…) Var(ï¼…) Qdw,ar(kJ/kg) Value 64.28 3.80 9.10 1.20 0.60 20.98 29.32 23208 3.5.3 Limestone Boilers 1#~3# of current project apply internal calcium spray desulfuration technology. Boilers 4#~5# apply external limestone-gypsum desulfuration. The capacity of current limestone warehouse is 2× 500m3; the current project will not provide limestone crushing device. The finished limestone powder product will be supplied by Yantai Dongyuan Cement Co., Ltd. and be transported to plant by airtight tank cars and be stored in limestone powder warehouse. 3.5.4 Water consumption The production water supply and domestic water of Botong Thermoelectricity will be supplied by Weihai Water Resource Group. The water intakes of Weihai Water Resource Group are provided with interception nets, fish treatment and return system, fine interception railings and aquatile filter system to effectively reduce the collision and absorption of fishes and shells. 3-13 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company Therefore, the water supply to the proposed project can be guaranteed. Water balance of Botong Thermoelectricity in 2010 is detailed in figure 3.5-2. 3.5.5 Products Products of Botong Thermoelectricity from 2008 to 2010 are detailed in table 3.4-3. Table 3.4-3 Products of Botong Thermoelectricity from 2008 to 2010 Annual output Item 2008 2009 2010 Heating load (GJ/a) 3055543.79 3255497 4498136 Generated energy (kWh/a) 11531.742 23973.82 16152.72 Weihai Environmental Protection Research Institute Co., Ltd. 3-14 3 Profile of existing project 0.8（0.8） 20.8（0.8） 排放 失 0） æ?Ÿ 外供 失 5（ å?‘ æ?Ÿ è’¸ ) （223.6） å?¹ (0 风 41 （50.4） 14.6（19.4）å?šé€šå»ºæ??利用 （1.1） 3330 （530） （4） 530 （2） （3） （4） （49.3） æ?Ÿå¤± （6500） 输 （0.8） 2（2） ç…¤ é”… 除 å–· 冲 ç…¤ 炉 化 ç?° æ´’ æ´— 场 空 冷 热 主 渣 æ?‚ å?Š å­¦ 冷 æ²¹ 排 生 厂 用 用 （224.7） 除 器 器 用 污 æ´» 处 房 20æ?Ÿ æ°´ æ°´ å°˜ 用 用 （21） 用 ç?† 失 2800（6500） æ?‚ 用 æ°´ æ°´ 户 æ°´ 用 用 æ°´ æ°´ 热 æ°´ 网 10（20） æ?Ÿ 失 （274） æ?Ÿå¤± 3264（510） （1） 炉 9（18） 外 530 （6479） 1（2）石è†?排出 脱 ç¡« 2（2） 66（21） 自æ?¥æ°´ 237（298） 生活用水 Domestic water 外供 Supply to others 锅炉 Boiler 化学处ç?†ç”¨æ°´ Water for chemical treatment æ?Ÿå¤± Loss 主厂房æ?‚用水 Water for main power house æ?Ÿå¤± Loss 炉外脱硫 External desulfurzation 除ç?°æ¸£ç”¨æ°´ Water for ash and slag handling å–·æ´’æ?‚用水 Water for sprinkling 输煤冲洗å?Šé™¤å°˜ç”¨æ°´ Water for coal washing and dedusting 煤场 Coal yard 石è†?排出 Gypsum drainage 空冷器用水 Water for air cooler 冷油器用水 Water for oil cooler å?šé€šå»ºæ??利用 Used by Botong Building Materials 热网æ?Ÿå¤± Heat supply network loss 热用户 Users 自æ?¥æ°´ Tap water è’¸å?‘æ?Ÿå¤± Evaporation loss 风å?¹æ?Ÿå¤± Blow loss 排污æ?Ÿå¤± Drainage loss Figure 3.5-2 Water Balance of Power Plant (Unit: m3/h, heating period data is indicated in brackets) 3-15 Weihai Environmental Protection Research Institute Co., Ltd. 4Discharge of Main Pollutants and Measures for Prevention and Control 4 Discharge of Main Pollutants and Measures for Prevention and Control 4.1 Discharge of atmospheric pollutants and measures for prevention and control 4.1.1 Boiler flue gas 1. Boiler flue gas pollution prevention and control (1) Before desulfuration improvement of Botong Thermoelectricity, boilers 1#~5# apply internal calcium spray desulfuration, with desulfuration efficiency above 50%; three-electric field electrostatic precipitation will be applied for flue gas produced by boilers 1#~4#, with dedusting efficiency of 99.4%; four-electric field electrostatic precipitation will be applied for flue gas produced by boiler 5#, with dedusting efficiency of 99.8%. (2) In Dec. 2010, Botong Thermoelectricity built heat supply boiler 6# applying four-electric field electrostatic precipitator, with the design dedusting efficiency of 99.6 ï¼… . Recirculating fluidized bed boiler+limestone-gysum wet method desulfuration with the efficiency above 90ï¼… is applied. The desulfuration system is able to perform 50% dedusting efficiency. Therefore, the overall dedusting efficiency of boiler is 99.8%. Meanwhile, Botong Thermoelectricity changed internal desulfuration of flue gas produced by boilers 4#, 5# to external desulfurzation limestone-gysum wet method desulfuration method (in Dec. 2010) with the design desulfuration efficiency≥90%. After implementing flue gas external desulfurzation project, the overall dedusting efficiency of boiler 4# is improved to 99.78% and that of boiler 5# is improved to 99.8%. (3) Flue gas produced by boilers 1#~3# (3× 75t/h) of current project is discharged by # chimney 1 (120m high, internal diameter of outlet of 3.0m). Flue gas produced by boilers 4#~5# (2× 130t/h), 6# (1× 220t/h) is discharged by chimney 2# (150m high, internal diameter of outlet of 5.0m). (4) The current project installed one flue gas continuous monitoring device respectively to chimney 1# and chimney 2# in Nov. 2007 and Mar. 2011. The flue gas continuous monitoring device for chimney 2# is undergoing debugging. Three-electric field dedusting Four-electric field dedusting 4-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company External desulfurzation system Online monitoring 2. Monitoring result of boiler flue gas The flue gas monitoring data of chimney 1# of current project is detailed in table 4.1-1. The monitoring result is detailed in table 4.1-2. Table 4.1-1 Online Monitoring Statistical Result of Boiler Flue Gas from 2010 to 2011 Online monitoring density of chimney 1# (mg/m3) Monitoring data SO2 Smoke NOX 2008.01 805 119 147 2008.02 1167 134 135 2008.03 1115 148 142 2008.04 195 126 81 2008.05 419 158 90 2008.08 224 75 93 2008.09 481 85 119 2008.10 399 60 111 2008.11 486 51 163 2008.12 624 87 230 2009.01 486 74 203 2009.02 423 81 151 2009.03 610 120 221 2009.04 583 85 246 2009.05 749 91 152 2009.06 598 108 160 2009.07 630 116 164 2009.08 742 100 208 2009.09 388 144 160 2009.10 486 59 210 2009.11 483 44 176 2009.12 372 67 228 Standard value 1200 200 800 2010.01 319 64 199 2010.02 283 59 178 2010.03 274 75 213 2010.04 329 89 244 2010.11 411 67 280 2010.12 414 67 279 Standard value 800 100 400 Note: 1: The first time interval standard of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) shall apply for boilers 1~3#. Weihai Environmental Protection Research Institute Co., Ltd. 4-2 4Discharge of Main Pollutants and Measures for Prevention and Control Table 4.1-2 Online Monitoring Statistical Result of Boiler Flue Gas Pollutants Density (mg/m3) Monitoring date Boiler Smoke SO2 NOX Measured 100.11 599 283.9 Boilers value 1#~3# Standard 200 1200 800 value Oct. 7, 2008 Measured 43.3 383.4 253.5 Boiler 4#, value boiler 5# Standard 50 400 400 value Measured 73.2 538.3 356.9 Boilers value 1#~3# Standard 200 1200 800 value Mar. 13, 2009 Measured 45.8 390.2 241.4 Boiler 4#, value boiler 5# Standard 50 400 400 value Measured 141.2 672.9 267.5 Boilers value 1#~3# Standard 100 800 400 value Dec. 3, 2010 Measured 47.5 118.5 244.5 Boiler 4#, value boiler 5# Standard 50 400 400 value Measured 32.34 109.08 400 value Boiler 6# Standard 50 400 400 value Note: 1: The first time interval standard of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) shall be applied for exhaust gas discharged by boilers 1~3#. The second time interval grade B of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) shall be applied for exhaust gas discharged by boilers 4~5#. The third time interval standard shall be applied for boiler 6#. 2: Boiler 6# will be built in Dec. 2012. Its flue gas discharge density shall refer to the Environmental Impact Report of New Boiler and Desulfuration Project (2010) of Botong Thermoelectricity. According to table 4.1-1 and table 4.1-2, boilers 1~3# meet the first time interval standard of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007). Boilers 4~5# meet the second time interval grade B of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007). Boiler 6# meets the third time interval standard of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007). 3. Total quantity indicator of atmospheric pollutants Total flue gas pollutants discharged by boilers of Botong Thermoelectricity from 2008 to 2010 meet total quantity control indicator requirement of Weihai City. See table 4.1-3 for details. 4-3 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company Table 4.1-3 Total Quantity of Pollutants Discharged by Botong Thermoelectricity from 2008 to 2010 (t/a) Pollutant SO2 NO2 Smoke Annual discharge 944.2 697.88 137.7 2008 Total quantity control indicator 2811.43 — — Annual discharge 1116.65 827.55 163.08 2009 Total quantity control indicator 2811.43 — — Annual discharge 645.51 948.56 133.7 2010 Total quantity control indicator 2811.43 — — 4.1.2 Dust pollution prevention and control 1. Dust setting measures for fuel storage and transportation system Strictly control the loading capacity of coal handling trucks, control loading height less than carriage height and control truck speed, cover the trucks with tarpaulin, follow the specified route, forbid coal handling trucks to enter the downtown, in order to control the impact of dust to the surrounding environment, try to lower the fall when loading and unloading coal so as to reduce dust, apply semi-closed coal yard for coal storage inside plant, in order to eliminate dust; coal belt conveyor gallery applies closed design; the transfer stations are provided with waterpower cleaning facilities to eliminate coal dust and prevent the secondary pollution of coal dust; the transfer stations, coal breakers, etc. with a large fall will be provided with cloth bag dedusting device with the efficiency above 99% to eliminate coal dust pollution. 2. Measures for the prevention and control of limestone powder dust Limestone powder will be transported by airtight trucks which can avoid dust to plant and be delivered to limestone silo through pneumatic force. The top of limestone powder silo is provided with cloth bag dirt catchers with dedusting efficiency above 99%. The grain size of collected dust is larger than 10um. Therefore, the dust collection efficiency can be further guaranteed and improved. Boiler slag is large and it will not produce dust during the transportation. 3. Measures for the prevention and control of dust produced by ash silo and temporary slag yard An ash and slag separation system is applied. The coal powder ash is delivered to the ash silo of Botong Building Materials by pneumatic force for comprehensive utilization; the airtight pipeline system can product little dust despite of the fine grain size. Therefore, the impact to the surrounding environment and sensitive objectives is little. Monitoring result of dust measured at the boundary of Botong Thermoelectricity in 2009 is detailed in table 2.2-13. Table 2.2-13 Monitoring result of dust measured at the boundary (Unit: mg/m3) West South North Date Time Item East boundary boundary boundary boundary 8：00 TSP 0.191 0.166 0.113 0.115 10：00 TSP 0.130 0.179 0.107 0.189 3.10 14：00 TSP 0.243 0.146 0.171 0.142 16：00 TSP 0.189 0.196 0.254 0.168 3.11 8：00 TSP 0.188 0.156 0.195 0.301 Weihai Environmental Protection Research Institute Co., Ltd. 4-4 4Discharge of Main Pollutants and Measures for Prevention and Control 10：00 TSP 0.198 0.176 0.157 0.150 14：00 TSP 0.103 0.169 0.139 0.201 16：00 TSP 0.146 0.149 0.121 0.188 According to the table, the density of dust at each boundary can meet the monitoring density requirement (1.0mg/m3) of disorganized emission of particulate matters in table 2 of the Integrated Emission Standard of Air Pollutants (GB16297-1996). Semi-closed coal yard Coal belt conveyor gallery Cloth bag dirt catcher at the top of limestone Ash silo of Botong Building Materials powder silo 4.1.3 Summary As a power plant put into production starting from 2001, Botong Thermoelectricity has continuously improved measures for atmospheric pollution prevention and control, such as desulfuration facilities improvement, building of wind shielding and dust suppression wall, etc., which greatly reduced the discharge of pollutants and meets environmental protection requirements in pollutant discharge, making contributions to the local environment. 4.2 Wastewater discharge and measures for prevention and control The wastewater discharged by the current project can be divided into water treatment wastewater, boiler wastewater, circulating water sewage, domestic sewage, other wastewater, etc. The chemical water system applying reverse osmosis and electric desalting produces 4-5 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company wastewater with high slat content and little organic pollution. Some wastewater is used for sprinkling, coal handling, etc., while others is used by Botong New Building Materials Co., Ltd. The circulating tower with high content of suspended matters in circulating water does not discharge other pollutants directly; In the desulfuration system, the wastewater flows from gypsum swirler will be pumped to the wastewater treatment system, where the wastewater will enter the purified water tank after neutralization, sedimentation, flocculation, condensed purification, etc. Most of the purified water will be used for recycling. Little waste water will be used by Botong New Building Materials Co., Ltd. for ash mixing. The domestic sewage is discharged after being treated by septic-tank. In 2010, the plant discharged wastewater of 0. 1064 million t/a. The wastewater will flow through urban sewage pipe network to Weihai Zhongrong Anxin Water Resource Development Co., Ltd. Sewage Treatment Plant for treatment and discharge. The quality of wastewater discharged by current project is detailed in table 4.2-1. Table 4.2-1 Quality of Wastewater Discharged by Current Project SS Ammonia Volatile CODCr BOD5 Sulfide Petroleum Item PH nitrogen phenol (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) Not Not Not wastewater 7.30 <20 51 8 1.5 detected detected detected Wastewater Quality Standards for Discharge to 6.5～ 400 500 350 45 1.0 20 1.0 Municipal 9.5 Sewers (CJ343-2010) GRADE B According to table 4.2-1, the quality of drained water meets the Wastewater Quality Standards for Discharge to Municipal Sewers (CJ343-2010) GRADE B. The common supervision and monitoring results of Weihai Zhongrong Anxin Water Resource Development Co., Ltd. sewage treatment plant from 2008 to 2010 are detailed in table 4.2-2. According to table 4.2-2, the quality of water discharged by Weihai Zhongrong Anxin Water Resource Development Co., Ltd. from 2008 to 2010 can meet the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002) first class B. The wastewater produced by current project can be accepted steadily. Table 4.2-2 Common Supervision and Monitoring Results of Weihai Zhongrong Anxin Water Resource Development Co., Ltd. Sewage Treatment Plant in 2010 Animal and Hexavalent Ammonia Total Year Indicator COD BOD5 SS pH Petroleum plant oil chromium nitrogen arsenic Measured Not 54 11 17 7.41 0.150 0.09 Not detected 2.82 value detected Standard 60 20 20 6~9 3 3 0.05 8 0.1 value Total Total Total Anion Total 2008 Indicator Total lead Fecal coliform Total nitrogen — mercury chromium cadmium biosurfactant phosphorus Measured Not Not Not Not detected 0.235 7900 16.3 0.23 — value detected detected detected Standard 0.1 0.001 0.1 0.01 1 10000 20 1 — value Animal and Hexavalent Ammonia Total Indicator COD BOD5 SS pH Petroleum plant oil chromium nitrogen arsenic 2009 Measured Not 52 12 15 7.60 Not detected 0.494 Not detected 2.88 value detected Standard 60 20 20 6~9 3 3 0.05 8 0.1 Weihai Environmental Protection Research Institute Co., Ltd. 4-6 4Discharge of Main Pollutants and Measures for Prevention and Control value Total Total Total Anion Total Indicator Total lead Fecal coliform Total nitrogen — mercury chromium cadmium biosurfactant phosphorus Measured Not Not Not Not detected 0.169 5400 14.9 0.34 — value detected detected detected Standard 0.1 0.001 0.1 0.01 1 10000 20 1 — value Animal and Hexavalent Ammonia Total Indicator COD BOD5 SS pH Petroleum plant oil chromium nitrogen arsenic Measured Not 49 11 13 7.29 0.360 1.03 Not detected 5.31 value detected Standard 60 20 20 6~9 3 3 0.05 8 0.1 value 2010 Total Total Total Anion Total Indicator Total lead Fecal coliform Total nitrogen — mercury chromium cadmium biosurfactant phosphorus Measured Not Not Not Not detected 0.263 6900 15.1 0.30 — value detected detected detected Standard 0.1 0.001 0.1 0.01 1 10000 20 1 — value Note: 1: Detection limit: Petroleum 0.02mg/L, hexavalent chromium0.004mg/L, arsenic 0.007mg/L, lead 0.01mg/L, mercury 0.00005mg/L, total chromium 0.004mg/L, cadmium 0.005mg/L; 2: Observe the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918—2002) grade 1 B. 4.3 Noise pollution prevention and control 4.3.1 Noise level at each noise source and measures for prevention and control Turbine generator, coal breaker, boiler air blower, draught fan, air compressor, cooling tower, etc. are the noise sources of current project. The noise source intensity is detailed in table 4.3-1. Table 4.3-1 Noise level of main devices for current project and measures for prevention and control Noise level Equipment name Treatment measures Position (dB) Sound insulation, vibration Boiler body 85 attenuation Main power Turbine generator set 85~90 Add acoustical enclosure house Add steam exhaust Boiler steam exhaust 100 Boiler silencer Foundation vibration Blower 97 attenuation and silencer Outdoor Draught fan 92 Add silencer Add sound insulating Coal breaker 95 wallboard and apply single room arrangement Main transformer 80 Sound insulation, vibration Desulfuration system 95 attenuation, noise reduction Add silencer and apply Air compressor 90 single room arrangement Foundation vibration Main power house Water pump 93～96 attenuation, apply single room arrangement Apply isolated Cooling tower 83 Outdoor arrangement Streaming water spray Blowpipe noise 130 dilatation silencer 4-7 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company The monitoring result at plant boundary of current project on Mar. 13, 2010 is detailed in table 4.3-2. Table 4.3-2 Noise monitoring result Monitoring point Daytime (dB) Night (dB) ＃ 1 northwest corner boundary 56.2 52.7 ＃ 2 north boundary 54.0 51.7 ＃ 3 east gate 55.3 52.6 ＃ 4 southeast boundary 61.4 57.9 ＃ 5 south boundary 55.4 52.7 ＃ 6 west boundary 58.6 54.4 Grade 3 standard of the Emission Standard for Industrial Enterprises Noise at 65 55 Boundary (GB12348-2008) ＃ 7 Songjiawa 54.3 42.9 Grade 1 standard of the Emission Standard for Industrial Enterprises Noise at 55 45 Boundary (GB12348-2008) According to the monitoring result, the noise source at each boundary except 4# meets the Emission Standard for Industrial Enterprises Noise at Boundary (GB12348-2008) grade 3; the noise at 4# exceeding the standard is resulted from the openness of southeast boundary and the improper maintenance of boiler fans of 4# and 5#; monitoring point 7# meets the Environmental Quality Standard for Noise (GB3096-2008) grade 1; the acoustic environment is good. In order to solve the noise problem at night at the southeast boundary, Botong Thermoelectricity installed a hydrodynamic coupling between the fan and the electromotor to reduce the intake resistance and afforested the inner side of the enclosure at southeast boundary. 4.3.2 Noise level after treatment measures are applied Table 4.3-3 indicates the monitoring result of noise. According to the monitoring result, the measured value at the boundary in daytime and night after Botong Thermoelectricity has applying the above noise prevention and treatment measures can meet the requirements of the Standard of Noise at Boundary of Industrial Enterprises (GB12348-90) grade 3. Table 4.3-3 Noise monitoring result Monitoring point Daytime (dB) Night (dB) ＃ 1 northwest corner boundary 55.1 51.1 ＃ 2 north boundary 53.2 50.6 ＃ 3 east gate 53. 5 51.9 ＃ 4 southeast boundary 60.8 54.2 ＃ 5 south boundary 54.9 52.0 ＃ 6 west boundary 57.7 54.1 Grade 3 standard of the Emission Standard for Industrial Enterprises Noise at 65 55 Boundary (GB12348-2008) Weihai Environmental Protection Research Institute Co., Ltd. 4-8 4Discharge of Main Pollutants and Measures for Prevention and Control Generator acoustical enclosure 4.4 Solid waste discharge and measures for prevention and control The solid waste of current project can be divided into domestic garbage and solid production waste (ash and desulfurized gypsum). The slag produced from the burning in hearth will be cooled down by slag cooler and be sent to slag pool for cooling; the electrostatic dust collected by electrostatic precipitator will be sent to ash silo by the pneumatic conveying system and be used by Botong New Building Materials Co., Ltd. The desulfurized gypsum will be recycled by Botong New Building Materials Co., Ltd. as the raw material for processing aerated concrete and flyash brick. The current project produces 76.5t domestic garbage annually, which will be collected to Weihai Landfill Site. The solid production waste produced by the power plant from 2008 to 2010 is detailed in table 4.4-1. Table 4.4-1 Output and Comprehensive Utilization of Ash from 2008 to 2010 Output Gypsum output (10,000 t/a) Ash output (10,000 t/a) Year 2008 — 6.62 2009 — 7.35 2010 1.05 10.42 According to above analysis, the density of emitted boiler exhaust gas meets the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007); the quality of water discharged by the current project meets the Discharge Standard For Municipal Sewerage System (CJ343-2010)B and the water will enter Weihai Zhongrong Anxin Water Resource Development Co., Ltd. Sewage Treatment Plant for treatment; In order to solve the noise problem at night at the southeast boundary, Botong Thermoelectricity installed a hydrodynamic coupling between the fan and the electromotor to reduce the intake resistance and afforested the inner side of the enclosure at southeast boundary. After treatment, the boundary noise can all meet the Emission Standard for Industrial Enterprises Noise at Boundary (GB12348-2008) grade 3. The domestic garbage of current project will be collected to Weihai Landfill Site by sanitation department. The ash will be used by Botong New Building Materials Co., Ltd. 4-9 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 4.5 Analysis of energy conservation potential and improvement plan 4.5.1 Operating temperature of boiler 1. Existing problems Boilers 1#~4# and the three matching turbines (1#~3#) of Botong Thermoelectricity can meet the requirements for safe operation under 5.29Mpa, 480℃. However, they are operating under 5.29Mpa, 450℃ and can not achieve the best energy conservation effect. 2. Improvement plan The improvement is made to boiler outlet through controlling the flow rate of water with reduced temperature, increasing the heating area of some superheaters, etc. while not changing coal type, water cooled wall and air preheater. The particular improvement plan is listed below. (1) Remove all the outer shields from hearth outlet to economizer; (2) Remove all the high and low temperature superheater pipelines; (3) Apply 42*4, 15CrMoG pipe for high temperature section, ∮ 42*4, 20G pipe for low temperature section; keep the number of pipes unchanged, the number of header unchanged; do not change header for the original superheater and 2-stage header for water with reduced temperature; adjust the position of header properly; the number of beams at the top of boiler shall be increased according to the position of header; (4) Increase superheater for high and low temperature section in depth; increase 7% respectively for low temperature section and high temperature section; (5) Replace spring hanger for main steam pipeline, thicken the thermal insulation; (6) Replace low temperature section pipeline, change the exhaust gas side of low temperature section pipe to enamel while keeping the pipe diameter, quantity, channel, tube plate unchanged. 4.5.2 Turboset operating performance and efficiency 1. Existing problems The through-flow for turbosets 1#~3# of Botong Thermoelectricity was designed according to the level of 1950s to 1960s. As a result, the actual power performance of turboset falls far behind the current advanced level. The major factors affecting through-flow are: 1. The blade shaped line is designed by the Soviet Union from 1950s to 1960s, which features poor pneumatic heating power performance, large profile loss, low efficiency and poor variable working condition. 2. The distribution of some speed ratios and enthalpy drop is irrational. As a result, the heating power characteristic parameter deviates from the best value and the efficiency is low. 3. The meridian plane of through-flow is not smooth. The gallery takes the shape of step, which causes flow separation easily and increases the loss of through-flow. 4. The rotating blades do not match properly with the static blades. The incoming flow attach angle of blade is large and it increases the loss of attach angle. 5. The top of rotating blades at some stages is not provided with shroud ring, thus increasing leakage loss and streaming loss. 6. The application of biserial regulating stages with low efficiency affects the heating Weihai Environmental Protection Research Institute Co., Ltd. 4-10 4Discharge of Main Pollutants and Measures for Prevention and Control power performance of unit. The above factors lead to the intrinsic defects and deficiency of such unit， affect the economic benefits and cause energy waste. 2. Improvement plan In order to improve the performance and efficiency of unit, Botong Thermoelectricity will improve the unit with the following implementation plan after argumentation in different aspects. The improvement to the through-flow will replace all the rotating blades and static blades. The new clapboard and rotor will apply the following advanced technologies: (1) New generation “loadingâ€? efficient static blade with the following features: â‘  The maximum pneumatic load of blade surface is placed to the rear of blade grid passageway (traditionally, the maximum pneumatic load of blade surface is placed to the front). â‘¡ Suction surface and pressure surface are composed of high order continuous smooth curve. â‘¢ The small circle radius of blade front edge is small with a better flow line shape. The low loss feature of blade grid can be kept when incoming flow direction (attack angle) changes in a large scope. â‘£ The small circle radius of blade trailing edge is small and such feature can reduce trailing edge loss. ⑤ The maximum thickness of blade profile is large and it can strengthen blade rigidity. (2) Crankle coupling three-dimensional molding static blade grid. (3) Regulating stage meridian plane shrinkage. (4) Shunt static blade grid for big and small blades. (5) The rotating blades all apply shroud ring whole circle coupling structure to reduce vibration stress and strengthen blade. (6) Increase the number of seal tooth to the excircle of rotating blade top to reduce steam loss. (7) All the clapboards are changed to welded clapboards. The high welding precision can guarantee the pneumatic heating power performance of static blade grid, strength clapboard rigidity and service life. Another important principle of the improvement plan is to remain the parameters for safe operation such as rotor weight, thrust behind axle, etc. unchanged to keep the features of axle unchanged. Meanwhile, the rotating blade whole circle coupling will be applied to greatly improve the safety of rotating blade. In addition, the rigidity of loaded new blade profile is far better than that of the original blade. The rigidity of clapboard is also strengthened. Therefore, the safety of improved unit is far better than that of previous one. 4.5.3 Frequency control speed regulation device for matching fan of boiler 1. Existing problems Frequency control speed regulation device is not mounted to high pressure motors of nine fans matching to boilers 4#~6# of Botong Thermoelectricity. 4-11 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 2. Improvement plan Mount frequency control speed regulation device to high pressure motors of nine fans matching to boilers 4#~6# of Botong Thermoelectricity and regulate fan through controlling the rotate speed of frequency converter. 4.5.4 Effect of energy conservation and emission reduction after improvement After completing the above improvements by Botong Thermoelectricity, the effect of energy conservation and emission reduction is detailed in table 4.5-1. Table 4.5-1 Effect of energy conservation and emission reduction Item Current project After Increase and Remarks improvement decrease Coal (standard coal, 22.94 22.25 -0.69 Standard coal 10,000 t/a) Limestone (10,000 1.18 1.16 -0.02 t/a) Water (10,000 m3/a) 183.6 183.6 0 Power consumption 3420.00 2835.01 -584.99 (10,000 kW· h) SO2 (t/a) 645.51 630.5 -15.01 Smoke (t/a) 133.7 118.7 -17.0 NOX (t/a) 948.56 913.56 -35.0 CO2 (10,000 t/a) 57.19 55.47 -1.72 The improved economic and technical norms are detailed in table 4.5-2. Table 4.5-2 Improved economic and technical norm No. Item Unit Qty. 1 Saving of standard coal t 6930 per year 2 Total investment RMB 10,000 Yuan 1806 3 Fixed assets RMB 10,000 Yuan 1806 investment 4 Saving of coal cost per RMB 10,000 Yuan 693 year 5 Increased cost per year RMB 10,000 Yuan 344 6 Increased economic RMB 10,000 Yuan 349 benefit per year 7 Payback period Year 3.53 8 Financial internal rate % 26.34 of return 9 Net present value of RMB 10,000 Yuan 1375 investment According to table 4.5-1 and table 4.5-2, great economic benefits and environmental benefits can be obtained after apply three improvement measures regarding boiler operating temperature, turboset operating performance and efficiency and frequency control speed regulation device for matching fan of boiler. Weihai Environmental Protection Research Institute Co., Ltd. 4-12 5 Environmental Management and Monitoring 5 Environmental Management and Monitoring Environmental management and environmental monitoring are vital for enterprise management. The establishment and improvement of environmental protection organization, strengthening of environmental management, environmental monitoring and supervision inside plant and inclusion of environmental management into production management are very important for reducing the discharge of pollutants, promoting rational utilization and recycling of resources and improving economic benefits and environmental benefits. Botong Thermoelectricity has established a complete environmental management system with high environmental management level since 1998. 5.1 Environmental management 5.1.1 Environmental management organization The environmental management of Botong Thermoelectricity will be performed by Weihai Environmental Management Bureau. Weihai Environmental Management Bureau is responsible for implementing laws and standards related to environmental protection, formulating regulations related to environmental management, understanding environmental situation of project, setting the targets for environmental quality, proposing treatment measures and reporting to the superior environmental protection department and related departments. The specific works will be done by Botong Thermoelectricity. According to environmental protection requirement of power plant, the company has established an environmental protection team with the general manager as headman and the production department manager as deputy headman, and members including principals of related workshops. The office of environmental protection team is arranged in production technology department. The production department manager is responsible for environmental management. A technical supervision network will be formed at plant, department and workshop (team) level. The production technology department is an authority for technical supervision of environmental management for the whole plant and is responsible for organizing, implementing and monitoring the daily environmental management. One full-time technical supervisor for environmental management will be assigned. Each workshop will be provided with several part-time environmental controllers. 最高环境管ç?†æœºæž„ 世行环办 日常环境管ç?†æœºæž„ å¨?海市环ä¿?å±€ å¨?æµ·å?šé€šçƒ­ç”µ 环境管ç?†æ‰§è¡Œæœºæž„ 股份有é™?å…¬å?¸ 最高环境管ç?†æœºæž„ Higest environmental management organization 5-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 日常环境管ç?†æœºæž„ Daily environmental management organization 环境管ç?†æ‰§è¡Œæœºæž„ Environmental management organization å¨?海市环ä¿?å±€ Weihai Environmental Management Bureau 世行环办 Work Bank Environmental Office å¨?æµ·å?šé€šçƒ­ç”µè‚¡ä»½æœ‰é™?å…¬å?¸ Weihai Botong Thermoelectricity Limited Liability Company Figure 5.1-1 Sketch map of environmental management organization General Manager Production Department Manager Department Botong New Building Materials Co., Ltd. Operation Production technology department Materials Supply Department Maintenance Department Each pos Figure 5.1-2 Sketch map of environmental management organization of Botong Thermoelectricity 5.1.2 Specific duties and authority 1. General Manager: Top principal for environmental protection, fully responsible for environmental protection of whole plant, undertake environmental protection tasks for the superior and the local government, bring environmental protection into objective of term of service and economic contract and implement the tasks of environmental protection. 2. Production Department Manager: Coordinate the relationship between environmental protection department, production and construction department, operation and management department, etc., examine annual plan and long-term plan of environmental protection, decide technical environmental treatment plan and implementation measures, deal with serious environmental pollution accident or issue. 3. Production Technology Department: Be responsible for daily environmental management supervision and management, supervising the operation and monitoring of environmental protection facilities, controlling the discharge of “waste gas, waste water, industrial residue), proposing environmental management plan, collecting environmental management data, doing well in statistics, archiving, reporting environmental management statements to the superior regularly, turning over drainage charge to the superior, participating in environmental management design examination, pre-acceptance of environmental management, completion acceptance, organizing environmental pollution accident investigation and analysis and Weihai Environmental Protection Research Institute Co., Ltd. 5-2 5 Environmental Management and Monitoring environmental quality evaluation, organizing the promotion of advanced experience and technology for environmental management. 4. Operation Department: Be responsible for burning adjustment, operation examination of vibration attenuation and noise reduction devices, contacting the maintenance workshop if any problem is found; be responsible for normal operation of gas desulphurization system, rationally balancing water consumption, guaranteeing 99% wastewater recycling and utilization. 5. Maintenance Department: Be responsible for equipment maintenance and ensuring the safe and stable operation of each device. 6. Materials Supply Department: Be responsible for the supervision, management and maintenance of coal handling and unloading facilities, establishing related regulations to eliminate coal pollution; be responsible for fuel transportation, loading and unloading management, establishing related regulations to eliminate oil pollution; be responsible for controlling of the coal quality and ensure the ash content and sulphur can meet the environmental management requirement. 7. Botong New Building Materials Co., Ltd.: Be responsible for the comprehensive utilization of ash. 5.2 Environmental monitoring The environmental monitoring of Botong Thermoelectricity will be undertaken by Weihai Environmental Monitoring Station. Chimneys 1#, 2# will be mounted with exhaust gas online monitoring systems. 5.2.1 Exhaust gas online monitoring Shandong Province is a major province of energy mainly generating electricity with coal. At present, above 99% of the total generating units with installed capacity of more than 40 million KW are thermal power generating units. The thermal power generation causes serious sulfur dioxide pollution while ensuring power supply for economic development and the society. According to Shandong Provincial Protection Department, each thermal power plant is required to mount online exhaust gas online monitoring device for assisting exhaust gas pollution source supervision and management and reducing environmental air pollution. The online monitoring data will be delivered to the automatic environmental monitoring center as the basis for environmental management. Botong Thermoelectricity mounted exhaust gas online monitoring instrument on chimney 1 # in Nov. 2007, exhaust gas online monitoring instrument on chimney 2# in Dec. 2010. The monitoring is performed strictly following the Specifications for Continuous Emissions Monitoring of Flue Gas Emitted from Stationary Sources (HJ/T75-2001). Monitoring instrument: NSA-3080 flue exhaust gas continuous analyzer. Monitoring method: Non-dispersion infrared spectrophotometry. 5.2.2 Routine monitoring by Weihai Environmental Monitoring Station Weihai Environmental Management Bureau applies strict online monitoring system. The door to control room can be opened by two persons each of which holding one key, so as to ensure the reality and reliability of online monitoring data. Main monitoring items and frequency The environmental monitoring plan of Botong Thermoelectricity is detailed in table 5.2-2. 5-3 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company Table 5.2-2 Monitoring plan Entit y Cost perfo (RM Enviro rmin B nment g the No. Monitoring point Monitoring item Monitoring frequency Client 10,00 al monit 0 factors oring, Yuan super /a) visio n Exhaust gas online monitoring Monitoring All-weather by NSA-3080 Exhau Chimney discharge 1 SO2, smoke continuous flue gas 6 st gas outlet monitoring continuous analyzer Routine monitoring by Weihai Environmental Monitoring Station 4 periods/year, 1 Exhau Coal boiler flue 1 SO2, smoke, NO2 day/period, if boiler Moni 2 st gas outlet operates normally torin Drain outlet of this 4 periods/year, 1 g by COD, BOD5, NH3-N, sulfide, petroleum, volatile phenol 2 project day/period Weih ai Routi Envir ng onme monit ntal oring Moni date torin to be Boton g provi g Statio ded Waste Outlet of Weihai 2 Therm n, water Zhongrong Anxin COD, BOD5, SS, pH, petroleum, animal and plant oil, hexavalent chromium, ammonia, total 1 period/year, 1 by arsenic, total lead, total mercury, total chromium, total cadmium, anionic surface active oelectr super Weih Sewage Treatment day/period icity visio agent, fecal coliform, total nitrogen, total phosphorus ai Plant n Envir by onme envir ntal onme Moni ntal torin mana g geme Statio nt n 4 periods/season, burea 1m outside u 3 Noise Leq 1/period respectively 1 boundary for daytime and night Monitoring by monitoring station inside plant Solid 1 Plant area Solid waste name, output, disposition Count monthly 0.5 waste 5.3 Summary Botong Thermoelectricity can basically meet the requirements of the Environmental Management System for environmental management. 1. Botong Thermoelectricity has established a complete environmental management system starting the commissioning in 2001. 2. Botong Thermoelectricity has established an environmental protection team headed by the general manager. 3. Weihai Environmental Monitoring Station will regularly monitor the main pollution sources of Botong Thermoelectricity for understanding the discharge of pollutants. Weihai Environmental Protection Research Institute Co., Ltd. 5-4 6 Power Plant Safe Production Management 6 Power Plant Safe Production Management 6.1 Safe production management status quo In order to strengthen safe production management, fully implement Law of the People’s Republic of China on Work Safety, carefully execute the safety instructions and regulations issued by the State Electricity Regulatory Commission and the State Administration of Work Safety, prevent and reduce production accident, ensure the long-term safe and stable operation, life and property safety, Botong Thermoelectricity has established related management systems and carried out safe production inspections to continuously improve the safe production management and reduce safety accident. 6.2 Related safety management system In order to carefully implement “safety first, prevention crucialâ€? policy, regulate the supervision work and improve the safe production level, Botong Thermoelectricity fully implements the safety supervision system and production responsibility system. In order to strengthen and regulate safe production management, the enterprise has established strict and detailed safe production management system, such as work order system, operation order system, regular inspection system, outsourcing project safety management system, etc., strengthened the study of the Safe Production Management System, carried out regular examinations and determined salary according to marks. The Safe Production Management System has 15 clauses and mainly covers the following: â‘´ safety education management system; ⑵ safety inspection system; ⑶ safe production rewards and punishment system; â‘· safety practices, labor protective measures, accident prevention measures management system; ⑸ safety evaluation management system; ⑹ hazardous chemicals safety management system; ⑺ low voltage temporary power supply and earth leakage protective device management system; â‘» regulations for implementing “two-orderâ€? system; ⑼ specially skilled workers safety management regulation; ⑽ outsourcing projects safety management regulation; ⑾ accidents (difficulties) investigation, analysis and reporting regulations; â‘¿ special equipment safety management regulation; â’€ management regulation for the use of safety equipment; â’? management regulation for the use of electric equipment; â’‚ management regulation for safety facilities at production site. The management systems are detailed in table 6.2-1. 6.3 Implementation of safe production management system Botong Thermoelectricity carried out “winter inspection activityâ€?, “safe production monthâ€?, etc. in 2010. These activities summarized problems found out in safe inspection, matters to be further improved, including the following contents: â‘´ Carefully implement the documents issued by the State Electricity Regulatory Commission on strengthening equipment management and preventing accident. ⑵ Strengthen hazardous source management. ⑶ Improve emergency management. â‘· Special instrument management. ⑸ Works regarding peak consumption in summer and prevention of atrocious weather. 6-5 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company ⑹ Flood prevention and control. ⑺ Follow the principle of “control in four aspectsâ€? and strictly implement information report system. Problems found in inspection including: â‘´ Some valves and pipeline directions are not marked and they should be marked; ⑵ Along with the operation, the protective devices of phase I project is becoming unstable; ⑵ Workers for some posts can not meet safe production requirements; ⑶ The marks and rails are not recovered after maintenance; The enterprise is preparing solutions for above problems according to the actual situation. 6.4 Summary In order to prevent the occurrence of accident, Botong Thermoelectricity has established effective safe production management systems, prepared an emergency plan and strictly implemented monitoring alarm measures for timely finding out accident potential, applying effective countermeasures and ensuring the safety of employees and production. For the purpose of further avoiding the occurrence of accident and reducing the rate of equipment failure, it is recommended to further strengthen safety education to the employees, carry out safe production inspection, prepare detailed improvement measures for existing problems and implement the measures practically. Weihai Environmental Protection Research Institute Co., Ltd. 6-6 6 Power Plant Safe Production Management Table 6.2-1 Summary of safe production management system of Botong Thermoelectricity No. Item Topic and scope of application Detailed contents â‘  The production staff, production managers and leaders at all levels must carefully study and Specifies safety education implement various laws and provisions issued by methods, content, examination Safety education the state and ministries. â‘¡ The safe production 1 management, etc.; applicable management system committee of the company must train the for safety education employees regularly in different ways and management. organize the examination on the Safety Code of Electric Power Industry. â‘  Each department shall organize regular or irregular special safety inspection and improvement according to the actual situation and with the consideration of accident rule. â‘¡ Specifies content and The emphasis of safety inspection lies in the requirement of safety inspection of problems in safety management, 2 Safety inspection system inspection, applicable for each inspection of leaders, thoughts and department implementation of regulations, equipment defects, hidden troubles, violation of rules and disciplines, improvement and implementation. â‘¢ Safety inspection, including joint inspection, professional inspection and seasonal inspection. â‘  The company will implement a safe production objective management system and promote the three-level control of safe production, award the departments and Specifies rewards and individuals making great contributions to the Safe production rewards punishment content for safe 3 realization of safety objective and punish the and punishment system production; applicable for each departments and persons responsible for department accidents.â‘¡ A rewards and punishment system integrating spiritual encouragement and material reward, spiritual education and administrative punishment. Safety and prevention plans are important measures for proactively carrying out accident Specifies the preparation, Safety practices, labor prevention activities, eliminating accidents and implementation and inspection protective measures, ensuring safe production. The objective of of safety and prevention plans; 4 accident prevention preparing safety and prevention plans is to applicable for production measures management improve the working environment and labor department and related system conditions, ensuring the OHS, preventing departments casualties and systematically eliminating accidents according to plan with emphasis. â‘  Safety evaluation is an important way for conducting safety diagnosis, finding out hidden troubles and hazards; the application of safety evaluation can help understanding the current Specifies organization safety level and lay the foundation for safe measures for safety evaluation, production. Safety evaluation is the indication of Safety evaluation duties, procedure, work “prevention firstâ€? in safety management and 5 management system content, improvement of changing “afterwards managementâ€? to measures, inspection, “beforehand managementâ€?. â‘¡ In general, safety assessment, etc. evaluation is performed in April and October, of which the former one will emphasize inspection and supervision of safety evaluation items and improvements and the latter one will conduct an all-around evaluation. 6-7 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company No. Item Topic and scope of application Detailed contents â‘  The works related to hazardous chemicals must follow the Chemical Dangerous Goods Safety Management Regulations issued by the State Council and other regulations. The emergency plan shall be implemented for accidents. â‘¡ The serious hazardous sources of hazardous chemicals must be monitored and periodically evaluated to eliminate hidden troubles and apply effective measures to prevent serious accidents. â‘¢ Specify the requirements on workers and transportation staff related to the Specifies the purchase, handling of hazardous chemicals. â‘£ Specify the transportation, storage, use, storage and use requirements of hazardous management, etc. of hazardous chemicals. â—‹ Apply automatic burning and 5 Hazardous chemicals chemicals; applicable for safety control measures; correctly maintain the 6 safety management flammable, poisonous, safety control devices of boilers; observe the system hazardous and corrosive regulations on starting and stopping vehicles to chemicals those may hurt or maximize the explosion risk of suspending high damage the personnel, temperature particles during driving (for facilities and environment. instance, particles inside coal grinder, coal mill and cyclone separator); regularly clean worship to prevent coal dust accumulation (on the ground, breast board, crossbeam and equipment surface); spread to cool down the high-temperature region of coal pile (resulted from spontaneous combustion), do not send high temperature coal into coal dust fuel system; use thermodetector or carbon monoxide sensor, etc. to monitor solid fuel storage area, timely find out fire disaster incurred from spontaneous combustion and identify high risks. â‘  The work applying low voltage temporary power supply must comply with the conditions of the system. â‘¡ Power and lighting distribution cabinet must comply with the conditions of the system. â‘¢ The earth leakage protective device is used for preventing electric shock and ensuring personal safety. Therefore, the low voltage power equipment must be mounted with earth Further strengthen and leakage protective device and strictly follow improve safe production corresponding regulations. â‘£ Provide warning equipment management, lamps in enclosed site of power equipment; Low voltage temporary improve the safety protection workers entering enclosed site of power power supply and earth 7 awareness, prevent electric equipment must using voltage sensors; when leakage protective device shock and fire disaster; working on or nearby electric equipment and management system applicable for all the staff in transmission lines, the electricity must be cut off production and non-production or the equipment must be properly grounded area. according to laws and operation regulations; the workers working on or nearby exposed power circuit must be trained particularly covering basic theory, safe operation regulations, awareness of danger and identification, proper use of personal protective equipment, correct locking/hanging of plates, emergency (including heart-lung recovery), correct rescue procedure and regular training. Weihai Environmental Protection Research Institute Co., Ltd. 6-8 6 Power Plant Safe Production Management No. Item Topic and scope of application Detailed contents â‘  The Production Technology Management Department is responsible for managing work orders and related safety systems. The Operation Management Department is responsible for implementing operation order and managing related safety systems. The workshop is responsible for implementing “two ordersâ€?. The principals in charge of Operation Management Each department must Department and workshop operation are liable implement “two-orderâ€? system for implementing the operation order system and Regulations for in order to ensure safe statistics; the principals in charge of Production 8 implementing production, prevent accident, Technology Management Department and “two-orderâ€? system eliminate defects, and perform maintenance are liable for implementing the maintenance and installation. work order system and statistics, the Safety Supervision Department is responsible for supervision and assessing the implementation of “two ordersâ€?. â‘¡ Leaders at all levels shall strictly implement the “two ordersâ€? and authentically report the failures caused by “two ordersâ€?. The problems shall be carefully analyzed despite of the nature and result and be controlled in “four aspectsâ€?. â‘  Special works refer to those may cause casualties easily and lead to serious damages to the operators, others and the surrounding Specifies the scope of facilities. The workers involving in special specially skilled workers, works are called as specially skilled workers.â‘¡ matters related to evidence The specially skilled workers must strictly taking, reexamination, observe the national regulations and operational Specially skilled workers training, etc.; applicable for procedure of special equipment. The workshop is 9 safety management boiler pressure vessel responsible for managing the specially skilled regulation operation, electrician, hoisting, workers. The Personnel Department is welders, motor vehicle responsible for training. The Safety Supervision driving, erection at height, Department is responsible for supervision. All water treatment workers, the specially skilled workers must be certified refrigeration workers, etc. (with Special Work Certificate). The qualification of specially skilled workers must be reviewed twice a year. â‘  Do not subcontract outsourcing projects instead of management; the principal at each level is totally responsible for safe production and the safety affairs of outsourcing projects. â‘¡ Specifies the safety The Safety Supervision Department is Outsourcing projects management regulations for responsible for production management and is 10 safety management outsourcing projects; responsible for safety management of regulation applicable for all the outsourcing projects. â‘¢ Examine the outsourcing projects. qualification of contractors of outsourcing projects. â‘£ Assess the safety of outsourcing projects. ⑤ Assess the contract awarding department or equipment owners and project principals for safety. 6-9 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company No. Item Topic and scope of application Detailed contents â‘  Accidents (difficulties) investigation, analysis and reporting are vital for observing the principle of “control in four aspectsâ€?, careful investigation of accidents, drawing lessons from accidents, carrying out activities for accident prevention, eliminating hidden troubles those may hurt the people or damage equipment, and ensuring safe production. â‘¡ The objective of Specifies the preparation of preparing accidents (difficulties) investigation, accidents (difficulties) analysis and reporting is to find out the causes of investigation, analysis and accidents, emphasize prevention, improve the reporting regulations, and working environment and labor condition, ensure Accidents (difficulties) ways for accidents 11 investigation, analysis and the safety and health of employees, prevent (difficulties) investigation, personal casualties and eliminate accident reporting regulations analysis and reporting; systematically as scheduled and with emphasis. applicable for each production â‘¢ The accidents (difficulties) investigation, department and related analysis and reporting shall follow the Code of departments. Investigation for the Electric Power Production Accidents DL558ï¼?94 issued by the Ministry of Power Industry, the State Interim Provisions on Investigation Procedure of Serious Accidents, technical regulations on power industry issued by the superior, working regulations on power safety, directions for accident prevention and safe production bulletins. â‘  Special equipment include boilers, pressure vessels, pressure pipelines, hoisting equipment, motor vehicles inside plant which may endanger people’s life. The hoisting equipment will be checked twice a year. The special equipment not checked is not allowed to be used. The safety accessories of special equipment must be checked regularly. â‘¡ The use of special equipment must strictly follow the Safe Production Law and the Regulations on Safety Supervision for Special Equipment. A perfect management system and a responsibility system Specifies the purchase, must be available. The operators must be installation, use and checking certified. The accident must be reported to the (inspection), maintenance, etc. Safety Supervision Department timely and be Special equipment safety of special equipment; 12 handled according to the emergency plan. â‘¢ The management regulation applicable for boilers, pressure workshop with special equipment or teams vessels, pressure pipelines, working with special equipment must be hoisting equipment, motor provided with full-time or part-time managers. In vehicles inside plant, etc. addition, safety documents of special equipment shall be archived. â‘£ Ventilation measures shall be applied for the working area to reduce temperature and humidity. ⑤ Shorten the working time in high temperature environment, ensure drinking water supply. â‘¥ The surface closely contacting high temperature equipment shall be protected, including generating equipment, pipeline, etc. ⑦ Warning signs shall be available nearby the high temperature surface. Proper personal protective equipment including heat insulating gloves and shoes, etc. Weihai Environmental Protection Research Institute Co., Ltd. 6-10 6 Power Plant Safe Production Management No. Item Topic and scope of application Detailed contents â‘  The purchase, use and discarding as useless of safety devices must be reported to the Safety Specifies the purchase, use， Supervision Department for approval. â‘¡ The checking, maintenance, etc. of workshops and working teams must archive the safety devices; applicable for safety devices, check, test regularly according to Management regulation safety helmets, shock-proof regulations, and archive the test results and use 13 for the use of safety devices, fall-proof devices, records. â‘¢ The safety devices (shock-proof equipment climbing tools, earth leakage devices, fall-proof devices, climbing tools, protective devices, high insulating tools, etc.) must be checked and tested voltage electroscopes, regularly. â‘£ The safety helmets must be grounding wires, etc. selectively checked annually within the specified term. â‘  The electric devices must be provided with corresponding earth leakage protective device, isolation transformer and protective facility. â‘¡ Specifies the purchase, use, All power boxes, temporary power supplies, checking, maintenance, temporary sockets or temporary low voltage Management regulation management, etc. of electric electric devices, test instruments, hand-held 14 for the use of electric devices; applicable for electric devices, etc. must be earth leakage devices hand-held electric devices, protective. â‘¢ The electric devices can be mobile electric devices, etc. checked by high voltage working team with electrical workshop semiannually. â‘£ The electric devices shall be managed by the workshop and the working team. â‘  The safety facilities must be kept compete and mounted firmly while meeting the safety requirements. The operators are responsible for daily examination. The maintenance staffs are Specifies the use, responsible for periodical examination, daily maintenance, checking, maintenance and replacement. The unusual Management regulation governing, etc. of safety situations must be notified to the maintenance 15 for safety facilities at facilities; applicable for staffs. â‘¡ When dismantling and changing the production site gridding boards, handrails, safety facilities temporarily, temporary fences guard boards, stairs, platforms, and warning signs shall be provided and some passageways, etc. persons shall be assigned to wait here. The facilities shall be recovered at the end of work. â‘¢ The erection of temporary facilities and drilling on structures must be approved in advance. 6-11 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company No. Item Topic and scope of application Detailed contents â‘  Emphasize the training to drivers on safety rules; í¯€improve driving technology; all the drivers must be certified; restrict driving time and arrange shifts to avoid fatigue; â‘¡ Avoid dangerous roads and prevent driving in dangerous time to reduce the possibility of accident; â‘¢ Mount speed control devices (speed controllers) on trucks and perform remote supervision of drivers; maintain trucks regularly and use approved parts to avoid equipment Specifies that all the staff must failure and serious accident. follow traffic rules when â‘£ Try to prevent the use of road simultaneously heading to and leaving the by pedestrians and construction vehicles; workplace and operating cooperate with the local communities and equipment on free roads or Traffic safety authority in charge to improve road sign and 16 public roads. The safety management regulation visibility, and further improve the overall safety, measures for controlling traffic in particular the roads nearby schools and casualty shall protect project playgrounds of children. Perform traffic workers and road users, education and safety education together with the including easily injured local community (such as carrying out publicity persons. campaign at schools); ⑤ Cooperate with emergency processing staff to ensure timely first aid; â‘¥ Try to purchase materials from the local market to shorten the transportation distance, build related facilities (employee dorms) nearby the project site, and transport workers with buses to reduce traffic flow; apply traffic safety control measures and warn workers and vehicles through road signs and signalmen. Weihai Environmental Protection Research Institute Co., Ltd. 6-12 7 Profile of Occupational Health 7 Profile of Occupational Health 7.1 Occupational disease prevention and control Botong Thermoelectricity has established a safety network covering the whole company following the Law of the Peoples Republic of China on Prevention and Control of Occupational Diseases in order to prevent, control and eliminate occupational disease, do well in occupational disease prevention and control, protect the health and lawful rights of labors and promote the harmonious development of society; the Personnel Department is responsible for labor safety and occupational health management. In addition, with the supervision of labor union, the company has established a perfect labor safety and occupational health management system. The daily poisoning prevention, dust, chemical injury will be entrusted to local environmental protection monitoring station. 7.2 Measures for occupational disease prevention and control Dust, noise and ionizing radiation are major occupational hazards of power plant. (1) Dust Dust hazard exists in coal handling, storage, supply, grinding and ash disposal system. At present, following measures are mainly applied for dust prevention: â‘  The chute of coal handling system with a large fall shall be mounted with airlock baffle plate. The coal guiding and acceptance trough at coal dropping point shall be lengthened. In order to prevent coal dropping and for the convenience of recycling, the distance between material dropping point and rotary drum at the end shall be enlarged and the end of coal guiding trough shall be provided with cover plate for accepting coal. â‘¡ The height between rotary drum and ground shall be enlarged. A coal wiper will be mounted for cleaning the coal dust adhered to non-working surface of belt. These measures are favorable for cleaning coal dust and preventing the dropping of coal dust. â‘¢ Independent sprinkling and dust prevention devices shall be available at coal yard and be used for sprinkling coal pile in non-freezing season to prevent coal dust dispersion, environmental pollution and reduce coal loss. â‘£ Workers must wear dust masks, dustproof work clothes, gloves, etc. (2) Noise Various fans, water pumps, coal crushing machineries, turbine generator sets, boilers, etc. are noise sources of a thermal power plant. Presently, following measures are adopted for noise prevention: â‘  Mount silencers to boiler steam discharge pipe, reheater ignition steam discharge pipe, main steam safety valve steam discharge pipe, reheater outlet safety valve, forced draught blower, etc. â‘¡ Mount sound-proof housing to coal mill, provide sound-proof housing to exciter carbon brush; thermal insulation material wrapped at turbine head can be used for sound insulation; silencers will be mounted to indoor air conditioners; sound insulation compartments shall be provided to coal mill, high pressure water supply pump, air compressor, etc. 7-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company â‘¢ Provide sound insulation control rooms with noise less than 60 dBA; apply sound-absorptive decorative materials. â‘£ Follow related occupational noise regulations in designing the generator; ⑤ Identify and divide high noise zones; wear personal noise protective equipment when working in high noise zones (area with noise above 85dB). (3) Ionizing radiation The workers in a power plant will have to get close to generators, power distribution and transformation equipment, high voltage transmission lines. Therefore, the contact is electromagnetic field is more frequently than common persons. An electromagnetic safety system comprising following contents shall be established to prevent or minimize the occupational contact to electromagnetic field. Presently, the measures applied for ionizing radiation prevention and control include: â‘  Identify the potential contact at workplace, including the measurement of contact objective, use of personal monitoring equipment during working; â‘¡ Train the workers for identifying occupational electromagnetic field contract and hazard; â‘¢ Divide safety area, identify area exceeding the public contact standard and area not exceeding the standard; only the trained staff is allowed to enter the area exceeding standard; â‘£ Apply implement plans if the contact may or has gone beyond the standard of ICNIRP, IEEE, etc. ⑤ The set warning value of personal electromagnetic contact monitoring equipment shall be lower than the reference limit of occupational contact (for instance, 50% of the reference limit. The improvement plan may include: Arrange shifts for working, restrict contact time, increase the distance between electromagnetic radiation source and workers, or apply electromagnetic shielding materials. (4) Field rescue for occupational disease The patient burnt by chemical substances shall be immediately cleaned with clean water on site. The sunstroke patient shall be moved to a ventilating place, rub down with cold water, fed with cold drink containing salt. Meanwhile, invite medical personnel or send the patient to hospital. 7.3 Outlay for occupational disease prevention and control The annual outlay of Botong Thermoelectricity for occupational disease prevention and control is about RMB 0.35 million Yuan, including: â‘´ RMB 0.2 million Yuan for labor protection. ⑵ RMB 0.1 million Yuan for physical examination (once a year). ⑶ RMB 50,000 Yuan for protective equipment and facilities. 7.4 Implementation of occupational health prevention and control After years of efforts, Botong Thermoelectricity meets various prevailing regulations and standards for labor safety and industrial sanitation. At present, no person has suffered from occupational disease. Weihai Environmental Protection Research Institute Co., Ltd. 7-2 7 Profile of Occupational Health 7.5 Summary Botong Thermoelectricity has proactively applied various prevention measures and done a lot in regulated management, engineering control, employee training, medical supervision, personal protective utilities, dust monitoring, etc. considering the features of power plant, various unsafe, unsanitary factors in production process, and thus effectively ensuring the safety and health. 7-3 Weihai Environmental Protection Research Institute Co., Ltd. 8Risks and Measures for Prevention and Control 8 Risks and Measures for Prevention and Control 8.1 Physical risk identification The hazardous substnaces to be used in this project include diesel, ammonia water,sodium hydroxide, muriatic acid, whose phasycial paramters and emergency treatment mehtods are detailed in table 8.1-1~ table 8.1-4. Table 8.1-1 Physical paramters and emergency treatment mehtods of diesel It is a mixture mainly comprising alkanes, alkenes, cycloalkanes, aromatic hydrocarbons, polycyclic aromatic hydrocarbons, a small amount of sulfur (2 ～ 60g/kg), nitrogen (<1g/kg) and additive. It is slightly sticky brown liquid with melting point of -18℃, Physical and boiling point of 282～338℃, relative density of (water=1) 0.87～0.9, flashing point of chemical 38℃, ignition temperature of 257℃. It is used as the fuel for diesel engine. properties Flammable, irritant; the contact with open fire, high temperature or oxidant may lead to burning and explosion. The high temperature may increase the pressure inside vessel and lead to cracking and explosion. Skin contact is the major way of absorption, which may lead to acute kidney damage. Toxicological Diesel may lead to contact dermatitis or oily acne. The absorption of fog drop or liquid data and may lead to aspiration pneumonia. It can enter into fetal blood through placenta. Diesel environmental exhaust gas may irritate eyes, nose and cause swirl and headache. behavior Table 8.1-1 Physical paramters and emergency treatment mehtods of ammonia water Physical and Colorless transparent liquid with strong irritant stink; relative density of (water=1) 0.91. chemical Dissolve in water, alcohol, used in pharmacy industry, gauze cover industry, properties photoprinting, fertilizer, etc. Decompose to release ammonia, the decomposing speed increases along with the increase of temperature, explosive atmosphere can be formed, the vessel under high temperature Toxicological may crack and explode, burning (decomposing) output: ammonia. data and environmental The absorption of ammonia water into nose, throat and lung may lead to couth, short behavior breath, asthma, etc.; death by suffocation may be caused by throat edema; pulmonary edema will be caused and lead to death. The ammonia water splashing into eyes may cause serious damage and even bind; skin contact may lead to burning. (1) Leakage emergency treatment Evacuate the personnel in leakage area to safe places, forbid irrelevant personnel to enter the polluted area; the emergency treatment staff shall wear self-contained respirator and chemical protective cloths. Do not contact leaked chemicals directly, block the leakage when ensuring safety. Wash with massive water and discharge the diluted water into Emergency waste water system. Absorb with sandy soil, vermiculite or other inert materials, then add treatment few to massive water and adjust to neutral before discharging into wastewater system. The methods leakage of huge quantity shall be enclosed with diking and then collected, transferred, recycled or treated before abandoning. (2) Protective measures Respiratory system protection: Wear gas mask if the steam may be contacted. Wear self-contained respirator at emergency rescue or escape. 8-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company Eye protection: Wear chemical safety protective glasses. Protective clothes: work clothes. Hand protection: Wear chemical resistance gloves. Others: Forbid smoking, eating and drinking at workplace. Take a shower and change clothes after working, keep good health habits. (3) Emergency measures Skin contact: Immediate wash with water for at least 15min. Go to hospital if burnt. Eye contact: Life eyelid, wash at least 15min with flowing clean water or normal saline, or wash with 3% boric acid, go to hospital immediately. Inhalation: Immediately leave the site and go to a place with fresh air, keep the respiratory tract smooth, perform oxygen therapy if difficult in breathing, conduct artificial respiration if the breathing stops, then send to the hospital. Ingestion: Immediate rinse the mouth, take dilute vinegar or lemon juice, go to hospital. Fire extinction: Vaporific water, carbon dixodie, sandy soil. Table 8.1-3 Physical paramters and emergency treatment mehtods of sodium hydroxide Molecular formula: NaOH, Chinese standard No.: 82001, molecular weight 40.01; danger Marks mark: 20 (alkaline corrosive) Physical and Appearance and character: White opaque solid, easily air slaking chemical properties Acute toxicity: LD504820mg/kg (rat per os) Toxicological Hazardous features: This product will not burn. It releases massive heat when meeting data and water and steam and forms corrosive solution. Then, it neutralizes with acid and release environmental heat. This product is strongly corrosive. behavior Burning (decomposition product): Hazardous toxic smog may be produced. 1 Leakage emergency treatment Isolate and set warming signs around the polluted area; the emergency treatment staff shall wear respirator and chemical protective cloths. Do not contact leaked chemicals directly, collect into dry and clean vessel with cover with a clean shovel, add few to massive water and adjust to neutral before discharging into wastewater system. The leakage of huge quantity shall be collected, recycled or treated before abandoning. 2 Protective measures Respiratory system protection: Wear gas mask if necessary. Eye protection: Wear chemical safety protective glasses. Emergency treatment Protective clothes: Work clothes (made of anticorrosie materials) methods Hand protection: Wear rubber gloves. Others: Take a shower and change clothes after working, keep good health habits. 3. Emergency measures Skin contact: Immediate wash with water for at least 15min. Go to hospital if burnt. Eye contact: Life eyelid, wash at least 15min with flowing clean water or normal saline, or wash with 3% boric acid, go to hospital immediately. Inhalation: Immediately leave the site and go to a place with fresh air, perform oxygen therapy if difficult in breathing, conduct artificial respiration if necessary, then send to the hospital. Weihai Environmental Protection Research Institute Co., Ltd. 8-2 8Risks and Measures for Prevention and Control Ingestion: Immediate rinse the mouth, take dilute vinegar or lemon juice, go to hospital. Fire extinction: Vaporific water, sandy soil. Table 8.1-4 Physical paramters and emergency treatment mehtods of muriatic acid Molecular formula: HCL, Chinese standard No.: 81013, molecular weight 36.46; danger Marks mark: 20 (acid corrosive) Physical and Appearance and character: White or slightly yellow fuming liquid, with pungent acidity chemical properties Acute toxicity: LD50900mg/kg (rabbit per os); LC503124ppm, 1h (rat inhalation) Toxicological Hazardous features: This product can reacts with some active metal powders and releases data and hydrogen. Virulent hydrogen cyanide gas can be produced when meeting cyanide. environmental Neutralization reaction happens when meeting alkalin, during which process massive heat behavior can be released. This product is strongly corrosive. Burning (decomposition product): Hydrogen chloride I. Leakage emergency treatment Evacuate the personnel in leakage area to safe places, forbid irrelevant personnel to enter the polluted area; the emergency treatment staff shall wear self-contained respirator and chemical protective cloths. Do not contact leaked chemicals directly. Do not sprinkle water to the leakage. Do not allow water to enter the packed vessel. Mix with sandy soil, dry limestone or soda ash and then collect the waste disposal site. Wash with massive water and discharge the diluted water into waste water system. The leakage of huge quantity shall be enclosed with diking and then collected, transferred, recycled or treated before abandoning. 2 Protective measures Respiratory system protection: Wear gas mask or air supply helmet if contacting the steam or smog. Wear self-contained respirator at emergency rescue or escape. Eye protection: Wear chemical safety protective glasses. Emergency Protective clothes: Work clothes (made of anticorrosie materials) treatment Hand protection: Wear rubber gloves. methods Others: Take a shower and change clothes after working, place the polluted clothes independently, keep good health habits. 3. Emergency measures Skin contact: Immediate wash with water for at least 15min or wash with 2% sodium bicarbonate solution. Go to hospital if burnt. Eye contact: Life eyelid, wash at least 10min with flowing clean water or 2% sodium bicarbonate solution. Inhalation: Immediately leave the site and go to a place with fresh air, keep the respiratory tract smooth, perform oxygen therapy if difficult in breathing, inhale 2-4% atomized sodium bicarbonate solution, then send to the hospital. Ingestion: Immediate rinse the mouth, drink milk, egg while, plant oil, etc., do not urge the emesis, immediately go to hospital. Fire extinction: Vaporific water, sandy soil. 8-3 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 8.2 Equipment and production equipment hazard analysis (1) Pressure equpiment The equipment boilers, turbines, etc. involved in power generation and heat supply devices are usually pressure vessles and pipelines. Under following conditions such as design, manufacturing defects, strengthen reduciton due to fatigue or corrosion, improper operation and operation against rules which leading to over temperature, over pressure, reduced ductility of pressure vessel of reactor due to long term high temperature and high pressure operation, creepage failure, the pressure equipment suffering stress higher than the bearing capacity may lead to vessle expolision, casulties, equipment damage and environmental pollution. (2) Heat exchanger Under high temperature, pressure and affected by heating exchanging medieum, the joint between tube nest and tube plate may easily leak. The pipewall may become thin due to medium flushing, which lead to internal leakage of heat exchanger. The medium leaked into circulating water system may cause fire and explosion. (3) Pumps â‘  If the exposed operating parts of mechanical rotating equpiment such as fans, pumps involved in production process are not provided with protective covers or the protective covers are damaged, or the maintenance, inspection violate the rules, or the electricity is not cut off or the equipment is started accidently due to improper supervision, the operating parts may cause mechanical injury; if the workers do not wear protective articles, the operating parts may also cause mechanical injury. â‘¡ The improper sealing of pump transmitting flammable liquid and the connecting pipelines, valves, flanges, pressure gauge nozzles, etc. or flushing corrosion may lead to the leakage of flammable liquid and thus causing fire. â‘¢ Machines and pumps are major noise sources those may damage the operators. The noise may affect the hearing capacity and even deaf, or lead to neurasthenia, cardiovascular disease, alimentary system disease, etc. In addition, the noise may influence information communication and affect safe production. The operating pumps are noise sources those may cause diseases to people. (3) Electric equipment â‘  The overloading or short circuit of transformer, oil leakage of transformer may lead to a fire disaster; transformer failure may cause power cut. â‘¡ The electric equipment not grounded properly, the damaged insulation, the damaged power transmission and distribution line, improper supervision of electrical works, or operation againest rules, etc. may cause electric shock. â‘¢ The damage to protective lead sheath of power cable or the damage to insulation, long-term overload operation of cable, loose crimping of joint in the middle of cable junction box, improper welding or selection of joint materials, wet cable terminal, improper insulation treatment of outgoing line or too short distance, external fire and heat source may lead to a fire. â‘£ The operation of entire production system is ensured by electricity. The sudden failure of electricity may stop the operation of all machines and pumps, cause irregular reaction and stop, over pressure or leakage of flammable materials and thus resulting a fire or explosion. (4) Troubleshooting Weihai Environmental Protection Research Institute Co., Ltd. 8-4 8Risks and Measures for Prevention and Control â‘  When inert replacement is not performed properly during troubleshooting of equipment and pipeline, or the machine is started against rules, the mixed gases may explode. â‘¡ Troubleshooting tools, accessories, etc. not properly used or not firmly placed may lead to strike injury. â‘¢ The equipment platform or ladder without guardrail and anti-skidding step, or the platform, guardrail, ladder and anti-skidding step are corroded, fall accident may be caused. â‘£ The vehicles transporting auxiliary materials may be damaged due to failure, driving against rules or improper operation, etc.; motor vehicles without flash hider may cause a fire or explosion when entering dangerous areas. 8.3 Human factors, management factors and external environmental factors (1) Human factors According to the statistics and analysis of accidents, most of the accidents are caused by human factors. The fatigue and wrong operation caused by long-term overload working, disease or drunken operation and direction, involvement in taboo works, mental abnormality, intentional mistake or identification defect may lead to accidents. (2) Management defects No corresponding administration organization is established or the organization is not set rationally; the management systems are not complete or the management measures are not implemented; the production staff have no rule to follow and they act recklessly; no system of rewards and penalties is available; the workers are not enthusiastic and active; the routine inspection is not timely and not careful; the handover is not clear; no perfect safety operation regulations are prepared; no training system is available; the operators are not trained in three levels and on skills; the workers not trained are allowed to work and they can not make judgments correctly; the safety problems are not emphasized and the problems are not solved timely; the supervision and inspection systems are not implemented strictly; wrong direction or even direction against rules; no replacement plan or maintenance system for equipment and facilities; the troubleshooting system is not strict enough to find out problems. The management defects may lead to accidents. The major principal and other safety managers not trained may not able to prevent accident. What is more, the accident may become worse. (3) Working environment, temperature impact The project is located in an area with distinct four seasons, where is cold in winter and hot in summer. If no anti-freezing measure is applied properly in winter, the water supply system may block or broken. The freezing of fire water system will affect fire extinguishing and worsen the fire accident. In summer, the volatilization of flammable liquid may be facilitated due to the high temperature and thus increasing the danger of fire disaster. In addition, the high temperature may cause sunstroke or wrong operation. Insufficient light at workplace may cause visual fatigue, wrong operation and accident. 8.4 Identification of fire, explosion hazards The diesel and other flammables in power plant are explosive. The enterprise shall apply various safety measures to prevent accidents. For instance: â‘  Prepare perfect regulations and operation procedures according to the state, ministerial and industrial standards; â‘¡ Mount flammable gas alarming device in working area; â‘¢ Provide water supply system and fire equipment for fire fighting. 8-5 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 8.5 Toxicity identification The toxicity will be determined according to the Occupational Exposure Limit for Hazardous Agents in the Workplace (GBZ2-2002). See table 8.1-5 for details. Table 8.1-5 Evaluation standards of main toxic substances (mg/m3) No. Item Evaluation standard Remarks 1 Muriatic acid 7.8 Max. allowable density 2 Sodium hydroxide 2 Max. allowable density The hazard indicator will be determined according to the following formula: Hi=Qi/C0i Wherein:Hi-hazard indicator of toxic substance i; Qi-processing or storage quantity (kg) of substance i, see table 8.1-6 for details; C0i-allowable density of substance i (mg/m3). Table 8.1-6 Storage and transportation quantity of main toxic substances No. Toxic pollutants Storage and transportation quantity (t/a) 1 Muriatic acid 15 2 Sodium hydroxide 15 The hazard indictors of major substances for the project are detailed in table 5-9. Table 5-9 Hazard indictors of major substances No. Toxic pollutants Hazard indicator Hi 1 muriatic acid 1.9× 3 10 2 sodium hydroxide 7.5× 5 10 According to the above table, sodium is the primary and muriatic acid is the secondary toxic materials in production process of Botong Thermoelectricity. 8.6 Product device risk identification The risks of boiler device, turbine device, distribution system, chemical water device not considering any other safety measures are high. The enterprise shall strictly follow the national laws, regulations and standards in equipment design, manufacturing, installation, acceptance and use, strengthen explosion proof design, process control, interlocking device and safety operation procedure, arrange the separation space strictly, implement measures for emergency treatment, alarming, etc., prepare scientific and detailed emergency plan, train the operators regularly, organize periodical emergency rescue rehearsal in order to prevent the occurrence of serious accident. 8.7 Summary Coal and water are raw materials for Botong Thermoelectricity. The production involves diesel, ammonia water, sodium hydroxide, muriatic acid, etc. Due to the little quantity, the toxic effect, fire and explosion risk are not apparent if preventive measures are applied. Weihai Environmental Protection Research Institute Co., Ltd. 8-6 8Risks and Measures for Prevention and Control Each boiler, turbine, chemical water devices, etc. are highly risky. The operation against rules, insufficient safety awareness, etc. are major factors causing accidents. During the production process, the equipment shall be well maintained and repaired and the safety protection of key parts and alarming measures shall be emphasized for finding out hidden troubles and applying timely and effective measures to prevent accidents. 8-7 Weihai Environmental Protection Research Institute Co., Ltd. 9 Emergency Plan 9 Emergency Plan 9.1 Power plant emergency plan preparation Botong Thermoelectricity has organized related production departments in preparing the environmental emergency plan. The Production Technology Department is responsible for auditing, amendment and coordination. 9.2 Power plant emergency plan overview The emergency plan is divided into serious production accident plan and environmental emergency plan. 9.2.1 Comprehensive emergency rescue plan for serious production accident â‘´ Preparation objective and function: Effectively control the occurrence and development of emergency event, try to reduce the threat of accident to human and equipment, reduce the loss to the minimum. ⑵ Preparation basis: Safety Production Law, Regulations on the Control over Safety of Dangerous Chemicals, Temporary Provisions for the Prevention of Serious and Extremely Serious Safety Accident and Emergency Treatment, 25 Important Requirements on the Prevention of Serious Power Accident, Safe Power Working Regulation, Guide Rule for the Preparation of Emergency Plan for Safe Production Accident of Production and Operation Entities, etc. ⑶ This plan covers the production scope of the company. â‘· Risk sources and risk analysis Coal handling belts, cables, pressure vessels, traveling crane, fuel pump room, etc. are risk resources, which may lead to firing, explosion, casualties, collapse, destructive earthquake, flood prevention and control, power failure of whole plant, power grid accident, etc. ⑸ Early warning and prevention â‘  Early warning Risk sources will be monitored by remote computers and persons on duty. The abnormality will be reported immediately. â‘¡ Prevention Conduct rational design and scientific management according to the 25 Important Requirements on the Prevention of Serious Power Accident, eliminate risks and hazardous factors intrinsically, carry out annual safety evaluation, identify risks and hazardous factors, and perform corresponding improvements. Follow the principle of early identification, early reporting, early disposal, predict possible events, timely report the emergency control center and notify related departments. The preventive measures include material storage, emergency rehearsal, etc. â‘¢ Early warning activity Immediately report to the shift supervisor and the headquarters if finding out the target. The headquarters will release emergency rescue order according to the actual situation. If emergency risk avoiding, emergency response expansion and asking for 9-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company help are required, the headquarters shall require the office, guarding department, fire fighting department, health department, etc. to make an emergency response. ⑹ Emergency response â‘  Response classification The early warning can be divided into four classes: class I (very serious), class II (serious), class III (relatively serious) and IV (common), indicating with red, orange, yellow and blue in sequence. Red class (I): Personal casualties, power failure of whole plant, destructive earthquake, serious fire disaster, serious flood, flooding of dam, etc. Orange class (II): Emergency above class II is about to happen and the event may worsen. Yellow class (III): Emergency above class III is about to happen and the event may worsen. For instance: power grid accident, elevator catching fire. Blue class (IV): Emergency above class IV is about to happen and the event may worsen. The emergencies will be classified according to above classes. The early warning class will be detailed in the respective plan. The commander in chief will firstly propose suggestions to early warning according to the category of emergency and report to the emergency headquarters. â‘¡ Response procedure Emergency procedure includes initial response, response procedure, emergency expansion, emergency completion, information release, latter disposal, etc. ⑺ Training and rehearsal â‘  Training The training of emergency knowledge skills will be contained in the annual work plan. The Safety Education Department will organize rescue training and study at least once a year. If necessary, experts will be employed to train the employees on rescue knowledge and train the commander in chief, members of command party, rescue workers, operators, other persons, self rescue, mutual rescue, etc. â‘¡ Rehearsal The related plan shall be rehearsed at least once a year by each workshop, so as to improve the direction level and rescue capacity. Schemes shall be prepared for rehearsing the plan. 9.2.2 Special emergency rescue plan for serious production accident The plan lists eight special emergency plans for ensure the operability of emergency plan. See table 9.2-1 for details. Weihai Environmental Protection Research Institute Co., Ltd. 9-2 9 Emergency Plan Table 9.2-1 Profile of Special Emergency Rescue Plan for Serious Production Accident of Botong Thermoelectricity Department in Accident type and hazard level Emergency No. Item Emergency disposal charge identification class Stop the operation of the belt catching a fire to prevent the worsening of burning, cut off the power supply to electric equipment to The belt under open flame, prevent short circuit, use the water electric welding slag, coal sprinkling isolation facilities at the end of powder spontaneous combustion, coal handling belt and neighboring trestle to electrical fire may catch a fire, prevent fire expansion, use the field fire Emergency etc. According to the variety of fighting water and dry-chemical fire plan for serious belt used by coal handling extinguisher for extinguishment, cover the Coal handling 1 production system, the whole coal handling Class â…¢ belt with sandy soil , close the doors and workshop accident of coal system belt can be regarded as windows, isolating channel gates at the handling belt the emergency rescue target. The terminals of coal handling belt trestle coal handling belt catching a fire catching a fire to reduce air flow, avoid coal can endanger the neighboring powder flying, reduce burning speed and belt, cable inside trestle and provide rescue opportunities. The coal surrounding board region. handling belt support and coal handling trestle structure threatened by fire can be cooled down directly with water to prevent deformation or collapse. â‘  Fire caught at oil unloading: Immediately stop unloading, close the upper cover to prevent oil evaporation, cut off the oil pipeline to oil tank to prevent fire spreading, take the oil tank car to a safe place, cool down with fire-fighting lance. â‘¡ Fuel pump The fuel pump room of coal room catching a fire: Cut off the power Emergency handling workshop is responsible supply if the electric motor catches a fire, rescue plan for for fuel unloading, storage, extinguish with carbon dioxide extinguisher. firing or supply and effluent oil treatment. Coal handling The oil pump room catching a fire due to oil 2 exploded fuel 0# light diesel will be used. Classâ…  workshop gas accumulation shall be extinguished with pump room, Sudden leakage, operation out of water, or foam, carbon dioxide, dry powder, personal control or natural disaster may etc. â‘¢ Oil tank catching a fire: Shut down casualties lead to the potential risk of fire the sewer in tank area connecting to the explosion, etc. outside, the valves of valve well. If the opening of tank top has caught a fire, use the foam extinguishing system to inject foam of above 200mm thick, cool down the external wall of oil tank with cold water to isolate oil and air. Cable fire is one of the extreme Stop the operation of equipment if the cable serious accidents and it may catches a fire. Identify equipment name, cause serious loss, which is faulty point according to cable route and difficult for rescue. The damage feature, do well in protection, prevent Emergency to insulation, overload operation, hazardous gas pickling, protect the fire site, rescue plan for Electrical external environment, etc. may keep lighting, provide emergency lighting 3 serious fire Classâ…  workshop cause the insulation breakdown and positive pressure respirator for entering disaster of and short circuit. The electric arc fire zone, follow fire fighting regulations in cable may lead to cable fire. The power extinguishing the initial fire, block the fire cable catching a fire may affect doors at two ends of cable trench and other the master control room, parts to avoid air flow and facilitate fire surrounding areas, etc. extinguishing, apply stifling method. 9-3 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company Department in Accident type and hazard level Emergency No. Item Emergency disposal charge identification class If the traveling crane or other hoisting equipment is not functioning normally, the finder of must immediately notify the shift supervisor to cut off power supply and Emergency evaluate the workers on site. Then, the rescue plan for finder shall initially judge the scope of serious Engine and accident and notify the maintenance accidents of Turbine house installed with big 4 boiler Classâ…  workshop. The maintenance staff arrived traveling crane, traveling crane workshop shall firstly build safety guardrails to protect etc. and the accident site and then check the personal equipment under failure, identify the causes casualties and take necessary measures. If the persons on traveling crane can not escape from accident site, a latter of sufficient length shall be provided to rescue them. The power failure of whole plant After the power failure of 35KV bus, the can be caused by system person on duty shall immediately check the oscillation, tripping of 35KV light words, signals, switches and protection contact line, failure of 35KV bus, actions, etc. and immediately report to the wrong action of protection and shift supervisor; cut off all the switches of switch, refusal of action or power bus, check the equipment system and Emergency failure of important equipment, immediately report if any problem is found; rescue plan for Electrical serious fire disaster of main check 35KV switch control pressure, 5 Classâ…  power failure of workshop tunnel cable, etc. At a result, the emergency lighting switching, ensure DC whole plant three units may dump load, the bus voltage, report to the shift supervisor turbine may trip, the main detailed failure information. The person on throttle valve may close and the duty shall apply corresponding measures if boiler may stop burning, thus the main throttle valve is closed, generator causing insufficient power and system sectionalizing field suppression, generation and breakdown of auxiliary power failure, 6KV, 380V bus some systems. failure. â‘  The person finding that pressure vessel is damaged or the person receiving alarm must immediately notify the operator, whom is required to take reliable measures to switch the system normally while not endangering equipment and personnel safety. â‘¡ The operator and the maintenance staff shall check casualties and damage of neighboring During the operation process of equipment. Professional rescuers shall be pressure vessel, the shell fissure, invited if there is any casualty and reliable Emergency raw material defect, bolt measures shall be applied for rescuing. If the rescue plan for breakage, overpressure of neighboring equipment is damaged, the personal Engine and medium, etc. will seriously operator shall be contacted to switch 6 casualties boiler damage the pressure vessel and Classâ…  corresponding equipment and cool down the caused by the workshop endanger the staff and equipment steam gushed from pressure vessel to explosion of nearby. The accident of pressure prevent the worsening of accident. â‘¢ The pressure vessel vessel may affect boiler steam professional technicians entering the pocket platform and surrounding accident site shall confirm the causes to boundary. failure, prepare perfect repair and emergency plan with the workshop where accident has happed. The professional technicians are also required to provide list of spare parts to the Materials Supply Department for procurement according to inventory. Ensure the successful completion of rush to repair and dealing with emergency. Weihai Environmental Protection Research Institute Co., Ltd. 9-4 9 Emergency Plan Department in Accident type and hazard level Emergency No. Item Emergency disposal charge identification class Abnormal maintenance of 35kV bus or outgoing line for Weihai, other line failures due to weather Emergency and wrong action of protection, Firstly identify accident feature if the plan for power which caused power failure of normal operation of 35kV system is affected grid accident Electrical 35kV bus of the company, or the 7 Class â…¢ and power system safety is threatened due to and assuring workshop system oscillation resulted from power gird failure or equipment failure, then the power the sectionalizing of Weihai process according to related regulations. supply to plant power grid and system, which caused the power failure of our company, or large area power failure of Weihai. â‘  If an earthquake happens, the rescue team of the company will immediately go to the plant site to arrange guards and evaluate people at any time. â‘¡ The staff of each related department will check the steam, hot water pipelines, water supply pipelines, ash Special delivery pipelines, etc. on and under the emergency Protection The earthquake intensity of plant ground and apply isolation measures if they 8 rescue plan for Technology site in Weihai is 7 on Richter Classâ…  crack. Meanwhile, the superior shall be destructive Department scale. reported to apply emergency measures for earthquake avoid the worsening of accident. â‘¢ The headquarters will notify each department to implement safety prevention measures, strengthen routine inspection, timely report risks and give the order for stopping the operation of unit. 9-5 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company 9.3 Summary Botong Thermoelectricity has prepared the Environmental Emergency Plan according to requirements, which can be used to effectively prevent the occurrence and development of emergency, eliminate the threat to personnel and equipment and minimize the loss. Weihai Environmental Protection Research Institute Co., Ltd. 9-6 10 Social Impact 10 Social Impact 10.1 Relationship between enterprise and employees The development of an enterprise lies on the development of employees. Botong Thermoelectricity has applied a series of measures to improve personnel system, working environment, welfare, training, etc. to establish a good trustworthy relationship between enterprise and employees. 10.1.1 Personnel system (1) Personnel structure Age structure-At present, Weihai Botong Thermoelectricity Limited Liability Company holds 281 employees, including 95 employees under the age of 30, accounting for 34% of the total, 106 employees aged between 31 and 40, accounting for 38% of the total, 63 employees aged between 41 and 50, accounting for 22% of the total, 17 employees above the age of 50, accounting for 6% of the total. Education background-12 employees of junior high school education and under, accounting for 4.3% of the total, 46 employees of senior high school education, accounting for 16.4% of the total, 104 employees of technical secondary school and technical school education, accounting for 37% of the total, 70 employees of junior college education, accounting for 24.9% of the total, 48 employees of undergraduate course education, accounting for 17.1% of the total, one employee of postgraduate education, accounting for 0.3% of the total. Gender structure-281 employees in total, including women of 107 (of which six are cadres), accounting for 38% of the total, 16 cadres (of which six are women) of medium level and above. Women cadres of medium level and above account for 30% of the total. (2) Employee’s participation in decision making, management, promotion and competition mechanism Botong Thermoelectricity under the supervision and direction of plant labor union has built a relative perfect plant affair publication, government affair publication system, a management system, a labor protection system, a supplementary medical insurance system, etc., which are related to the long-term development of enterprise and the interests of the employees. Important decisions must be approved by employee representative meeting before implementation. The promotion and competition of posts shall be guided by the principle of “open, fair and justiceâ€?, Work Standard, Management Standard, Post Condition, etc. and be implemented in many aspects. 10.1.2 Employee training Botong Thermoelectricity attaches great importance to employee training in the process of development and carries out training according to specialty. The enterprise will arrange training to department with environmental protection related posts based on the annual training plan. (1) Post training Gradually train competent maintenance staff according to the requirements of “be expert in one thing and good at manyâ€?; the staff for major posts shall gradually realize full competent working; all the staff for operation posts shall be trained in turn; cadres and managers of 10-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company medium level shall be trained regularly for management knowledge, laws and provisions. (2) Environmental protection training Botong Thermoelectricity performed environmental protection training covering following aspects in 2010 according to 2010 Environmental Protection Training Plan: â‘  Organized cadres of medium level and above to study the newest environmental potection laws and provisions through the Internet. â‘¡ Train the employees to understand the production process, safety knowledge, important environmental factors, etc. before they taking up posts. â‘¢ The department requiring posts involving in important environmental factors shall arrange the training according to the annual training plan, for instance, understand the important environmental factor of post, master operation procedure and related documents of post, get familiar with the objective, indicator, management plan of post, impact of behavior violating operation procedure, etc. â‘£ Perform training to desulfurization staff for practice. 10.2 Relationship between enterprise and the local residents As a new rising thermal power enterprise, Botong Thermoelectricity highlights the relationship with the surrounding residents. Botong Thermoelectricity had conducted a series of energy conservation, capacity expansion and environmental improvement from 2004 to 2010 based on scientific progress, in order to realize sustainable development. (1) Building of new sweetener to reduce pollutant discharge The enterprise invested RMB 20 million Yuan in desulfuration improvement of boilers 4#, 5# with external limestone-gypsum desulfuration technology. Such project was commended in June 2010. After completion, the desulfuration efficiency can be larger than or equal to 90%. The project can greatly reduce SO2 emission and improve the regional environment. (2) Unit heat supply improvement Along with the improvement of living standard in Weihai City, the demand of urban residents on heat supply is also increasing. To meet the increasing demand, Botong Thermoelectricity improved the extraction condensing turbine while not building new boiler, expanding boiler and increasing atmospheric pollution and applied circulating water in heat supply, which increased heat supply area of 1.19 million m2. 10.3 Relationship between enterprise and society The sustainable development of an enterprise must be supported by the local society. Botong Thermoelectricity, while proactively carrying out environmental protection training to the employees, functions as an enterprise citizen to get the trust and support from society. 10.4 Summary Botong Thermoelectricity has applied a series of measures to improve personnel system, working environment, welfare, training, etc. to establish a good trustworthy relationship between enterprise and employees and lay a solid foundation for the sustainable development. Meanwhile, in order to realize the sustainable development of enterprise, Botong Thermoelectricity attaches with great importance to the relationship with the surrounding residents and the society. On the one hand, Botong Thermoelectricity carried out a series of energy conservation, capacity expansion, environmental technology improvement based on Weihai Environmental Protection Research Institute Co., Ltd. 10-2 10 Social Impact scientific progress to provide a good living environment; on the other hand, Botong Thermoelectricity fully functions as an enterprise citizen through proactively organizing and participating in social environmental protection and volunteer activities, etc. to get the trust and support from society. 10-3 Weihai Environmental Protection Research Institute Co., Ltd. 11Auditing Conclusion 11 Auditing Conclusion The auditing team has made the following conclusion according to auditing assessment, verification, evidence taking and auditing result. 11.1 Conclusion 1. Project profile Weihai Botong Thermoelectricity Limited Liability Company (hereinafter referred to as Botong Thermoelectricity) is a state-owned energy enterprise engaging in heat supply and power generation established in June 1998, mainly undertaking the task for providing industrial steam and civil heat supply to Weihai Economic and Technical Development Zone. The Company now boasts six boilers, three generator sets, with the installed capacity of 60MW and boiler capacity of 705t/h, 281 employees, total assets of RMB 597 million Yuan, including net assets of RMB 160 million Yuan. In 2010, the Company supplied heat of 449.81× 4GJ/a, 10 generated electricity of 16152.72× 4KWh/a and consumed standard coal of 0.2294 million 10 t/a. 2. Pollution prevention and control (1) Exhaust gas Boilers 1#~3# apply internal calcium spray desulfuration, with desulfuration efficiency above 50%; three-electric field electrostatic precipitation will be applied for flue gas with dedusting efficiency of 99.4%; boiler 4# applies recirculating fluidized bed boiler+limestone-gysum wet method desulfuration with the efficiency≥90% and three-electric field electrostatic precipitation with the design dedusting efficiency of 99.4% and comprehensive dedusting efficiency as 99.78%; boilers 5#, 6# apply recirculating fluidized bedboiler+limestoneï¼?gysum wet method desulfuration the efficiency≥90% and three-electric field electrostatic precipitation with the design dedusting efficiency of 99.6ï¼… and comprehensive dedusting efficiency as 99.8%. The first time interval standard of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) shall be applied for exhaust gas discharged by boilers 1~3#. The second time interval grade B of the Emission Standard of Air Pollutants for Thermal Power Plants (DB37/664-2007) shall be applied for exhaust gas discharged by boilers 4~5#. The third time interval standard shall be applied for boiler 6#. (2) Wastewater The wastewater discharged by the current project can be divided into water treatment wastewater, boiler wastewater, circulating water sewage, domestic sewage, other wastewater, etc. The chemical water system applying reverse osmosis and electric desalting produces wastewater with high slat content and little organic pollution. Some wastewater is used for sprinkling, coal handling, etc., while others is used by Botong New Building Materials Co., Ltd. The circulating tower with high content of suspended matters in circulating water does not discharge other pollutants directly; the domestic sewage will be discharged after being treated by the septic-tank; the wastewater meting the Discharge Standard for Municipal Sewerage System (CJ343-2010) will flow through urban sewage pipe network to Weihai Zhongrong Anxin Water Resource Development Co., Ltd. Sewage Treatment Plant for treatment and discharge. (3) Noise 11-1 Weihai Environmental Protection Research Institute Co., Ltd. Environmental Auditing Report on Technical Transformation for Energy Efficiency Improvement of Weihai Botong Thermoelectricity Limited Liability Company After mounting a hydrodynamic coupling between the fan and the electromotor to reduce the intake resistance and afforesting the inner side of the enclosure at southeast boundary, the measured value of noise at each boundary in daytime and night can meet the Standard of Noise at Boundary of Industrial Enterprises(GB12348-90) grade 3. (4) Solid wastes The solid waste of current project can be divided into domestic garbage and solid production waste (ash and desulfurized gypsum). The slag produced from the burning in hearth will be cooled down by slag cooler and be sent to slag pool for temporary storage; the electrostatic dust collected by electrostatic precipitator will be sent to ash silo by the pneumatic conveying system and be used by Botong New Building Materials Co., Ltd. The desulfurized gypsum will be recycled by Botong New Building Materials Co., Ltd. as the raw material for processing aerated concrete and flyash brick. The domestic garbage will be collected to Weihai Landfill Site. 3. Environmental management Botong Thermoelectricity has formulated a complete management system, Environmental Management System with high environmental management level starting from 2001. 4. Safe production management The power plant has prepared the Safe Production Management System and is proactively carrying out safe production examination, self examination and improvement, continuously improving the safe production management and reducing accidents. 5. Occupational disease prevention and treatment The power plant has prepared the Occupational Disease Prevention, Treatment and Implementation Plan and is proactively carrying out prevention, control and elimination of occupational disease, doing well in occupational disease prevention and treatment, protecting labor health and the lawful rights. 6. Risk and measures for prevention and control The power plant has prepared risk and measures for prevention and control to strengthen and regulate the safety management of hazardous chemicals, ensure the safety of life and property and the protection of environment. 7. Emergency plan The power plant has prepared the Environmental Emergency Plan to control the occurrence and development of emergency, eliminate the threat to personnel and equipment and reduce the loss to the minimum. 8. Social impact Botong Thermoelectricity has established a trustworthy relationship with the employees and will build itself into a environmental-friendly energy base. 9. Total conclusion According to the environmental auditing analysis in above aspects, Botong Thermoelectricity prepared detailed pollution prevention and control measures and various regulations, which can basically meet the requirement of environmental management. 11.2 Measures and suggestions 1. The enterprise shall do well in environmental management according to the requirements of environmental. Meanwhile, the enterprise is required to regularly carry out environmental Weihai Environmental Protection Research Institute Co., Ltd. 11-2 11Auditing Conclusion auditing, continuous improvement of environmental management level. 2. Strengthen the management of environmental protection facilities, ensure the normal operation and processing efficiency of environmental protection facilities, and qualified discharge of various pollutants. 3. Strengthen the environmental protection education to employees, implement various labor protective measures, improve the awareness of safety and environmental protection, ensure the safety and health of employees. 4. Apply mature and effective risk prevention measures, establish accident emergency plan, strictly implement monitoring measures, prevent or reduce accidents, personal injury and environmental pollution. Actively carry out safe production month activity, seasonal safety inspection, strengthen safety management of production, traffic, important projects, outsourcing projects, implement safety measures, eliminate wrong management practice, hidden trouble, avoid the occurrence of accident, realize the control of safety production. 5. The enterprise shall strengthen the communication with the regional society based on the industrial feature and possible environmental impact, and publicize the enterprise profile, measures for energy conservation and pollutant discharge to the society regularly. 11-3 Weihai Environmental Protection Research Institute Co., Ltd.