Environmental Management Plansfor Central Heating Project Loaded from World Bank inYangjiazhanzi, Mine Area
Design Unit: Water & HeatingCenter in Yangjiazhangzi Economic Development Area
LiaoningAcademy of Environmental Sciences
August. 2007
cataloge
1. General Situation of the Project
1.1 Background of the Project
1.2 Name, nature and location of the Project
1.3 Contents of the Construction Project
2 .Design basis of EMP
2.1 Performance criteria
2.2 Design Basis
3．Pollutant produced by the project
3.1Waste gas emission
3.2 Waste water discharge
3.3Solid waste produced the project
3.4 Summary statement of the pollutant generated by the project
3.5Situation of substitute scattered boiler rooms
4 .Analysis of the Environmental Impact
4.1 Status Quo of Environment Quality
4.2 Environmental Impact Analysis during Construction Period
4.3 Analysis of the Environmental Impacts in Operation
5 .Environment Impact Mitigation Measures
6. Organization Arrangement
7. Monitoring Plan
8. Reporting system
8.1 Monitoring Report
8.2 Records and EMP Implementation report
9.Training Plan
10. Public Participation Plan
10.1 public Participation before the implement of the project
10.2Continuous Public Participation Plan
10.3 Channels for complains of dissension
1 General Situation of the Project
1.1 Background of the Project
At present, heat of buildings in Yangjiazhangzi mine area is mostly supplied by the scattered small boilers, including 5 small boilers with a running efficiency of 45%-65% and total capacity of 80 tons/ hour; since most of the existing boilers are running in a state of over loading, their heating quality can not reach the standard that some users indoor heating temperature is merely 13℃; The deduster and smoke control equipments for the boiler of 1-5MW in the scattered small boilers are too simple and outmoded that their dust removal efficiency is merely 50%; dust and smoke removal equipments of 6-10MW are simple and outmoded with a dust removalefficiency of 85%; dust and smoke cleaning equipments of 10-15MW are simple and outmoded with a dust collection efficiency of 90%; boilers of 1-10MW is running without desulphurization facilities, while boilers of 10-15MW is equipped with too simple desulphurization facilities having a desulphurization rate of50%; Consequently, the atmospheric pollution is getting severe.
The mode of the heating supply by the scattered boiler rooms do great harm to the urban environment, not noly increase the transportation quantity of the coal, slag and ash, give high pressure on the municipal traffic and emission pollution of the transportation vehicles but also use vast construction land and urban green space, which severely affect the cityscape and deteriorate the environmental quality of Yangjiazhangzi mine area.
Due to the existing problems mentioned above, to build a large heat source with vast heat network based on central heat supply rather than the scattered boiler room is an inevitable option for its urban development, which cause the decrease of the energy consumption, land use, soot and emission of SO2, Nox and lighten the transportation quantity of the coal, slag and ash, give high pressure on the municipal traffic and emission pollution of the transportation vehicles. As a result, the urban environment will be greatly improved.
1.2 Name, nature and location of the Project
Project title: Central Heat Supplying Project in Yangjiazhangzi Mine Area
Construction location: Lian Hua Community of Yangjiazhangzi Economic Development Zone
Construction nature: newly built
Project investment and construction period: Total investment 91.75 million yuan, of which, 53％
from the World Bank loan, the other 47％ from self-financing
Construction period: The construction preparation stage is until 2008; the construction stage is from 2009 to 2010; local heating will be commenced in 2010, general heating will be realized in 2013.
1.3 Contents of the Construction Project
According to this project, 3 water heaters of 29MW, 16 heat exchange stations and a first- Level pipeline network with a total length of 12.48km will be built. The central heat area north of Yong An road can come up to 144.3km2 after the operation of this project.
The total manpower quota of this project is 145, including76 within the heat source plant, in which there are 60 production staff and 16 managers;and 77 newer from the heating network and heat exchange stations, in which 32 are from the heat exchange station, and another 45 are managers and heating network maintainers. louyu exchange stations will be built for 53698m2 heating area. The heat source factory adopts the system of continuous duty with a heating period of 147 days, daily operation for 24 hours. See Fig. 3-1 for project compositions.
Table 1-1 Table of project compositions
Contents of project / Construction nature / Construction scale / RemarksHeating source / Main project / Newly built / 3×29MW
spreader-stoker-fired high temperature and hot water boiler / -
Auxiliary project / Heating power system, combustion system, storage system, ash and slag removal system, soften water system, coal transportation system / -
First-level pipeline network / Newly built / 12.48km / -
Second-class pipe network / Newly built / 100 ten thousand m2 / -
16 heat exchange stations / Newly built / 12 / -
Newly built / 14 / Heat load larger than 3.5MW, three circulating pumps(two for use,one for stand-by), two water-refilling pumps(one for use,one for stand-by); Heat load less than 3.5MW, two circulating pumps(one for use,one for stand-by), two water-refilling pumps(one for use,one for stand-by)
2Design basis of EMP
2.1Performance criteria
2.1.1 Environmental quality standard
（1）Ambient Air Quality Standard
The normal pollutants of environmentalair quality shallapplyNational Ambient Air Quality Standard Grade Ⅱ. (GB3095-1996). See Table2-1 for the details.
Table 2-1 Ambient air quality standard
No. / Item / Concentration limits for pollutants（mg/m3） / RemarksHourly average / Daily average
1 / TSP / - / 0.30
2 / SO2 / 0.50 / 0.15
3 / NO2 / 0.24 / 0.12 / According to No.1 document of Huan Fa [2000]
4 / PM10 / - / 0.15
（2）Ambient Noise Standard
Ambient Noise Standard should adopt Standard of Environmental Noise of Urban city Grade Ⅲ（GB3096-93）60 dB in the daytime, 50dB at night.
2.1.2 Emission Standard for Pollutants
（1）Emission Standard for Waste Gas
Boiler flue gas in the first and second periods is compliance with the maximum allowable emission standard, according to Emission Standard of Air Pollutants for Coal-Burning Oil-burning Gas-fired Boiler (GB13271-2001).The uncontrolled discharges of pollutants in coal transportation system should adopt Integrated emission standard of air pollutants Grade Ⅲ(GB16297-1996). See table 2 – 3 for details.
Table2-2 Emission standard for waste gas
Standard / Pollutant / Allowable emission concentration (mg/m3) / RemarksEmission Standard of Air Pollutants for Coal-Burning Oil-burning Gas-fired Boiler（GB13271-2001） / SO2 / 1200 / Period Ⅰ
Soot / 250
SO2 / 900 / Period Ⅱ
Soot / 200
Integrated emission standard of air pollutants
(GB16297-1996) / dust / 120 / unorganized: 1.0mg/m3
Maximum allowable emission rate (3.5kg/h) / 15m chimney
（2）Discharge Standard forWaste Water
Perform Standard for Wastewater Discharging into Urban Sewers（CJ3082-1999）
（3）Discharge Standard for Noise
Boundary noise should adopt Standard for Noise at Boundary of Industrial Enterprises Grade Ⅱ(GB12348-90)，60 dB in the daytime, 50 dB at night; Noise during construction should perform the standard.
Table 2-3 Noise limits for construction site ：dB(A)
Construction phase / Main noise source / Noise limitsDaytime / Nighttime
Earthwork / Bulldozer, Excavator, Loader etc, / 75 / 55
Piling / Various pile driver / 85 / Construction
forbidden
Framework / Concrete mixer, vibrating needle, Electric saw etc, / 70 / 55
Decoration / Crane, Elevator etc, / 65 / 55
（4）Discharge Standard for Solid Wastes
Adopt Standard for Pollution Control on the Industrial Solid Wastes in LiaoningProvince (DB21-777-94)and Standard for Pollution Control on the Storage and Disposal Site for General Solid Wastes (GB18599-2001).
2.2 Design Basis
This Environmental Management Plan is designed according to the laws and regulations of environmental protection in People’s Republic of China; World Bank Safeguard Operation Policy; related environment protection rules and structured documents Huludao City; the design documents of this project; technical documents on the construction project’s environmental impact assessment of PRC Environmental Protection Agency; international environment protocols that signed by China; etc.
3．Pollutant produced by the project
3.1Waste gasemission
Waste gas of this project come from fuel of the boiler, see table 3-1.
Table 3-1 The situation ofwaste Gas Emission
Chimney / waste gas volumeNm3/h / Main pollutants emission / Emission standard
mg/m3
Pollutant / Emission volume，t/h / Emission concentration，mg/m3
G1
/ 138972 / SO2 / 0.034 / 244 / 900Dust / 0.025 / 179 / 200
total / 3.3×108
Nm3/a / SO2 / 79.6t/a
Dust / 58.5t/a
From table 3-1, the effluent concentration of fuel gas and SO2 in the air pollutants in this project canmeettherequirementof the limit of period ⅡofEmission standard of air pollutants for coal-burning boilers. (GB13271-2001), achieve standard-met discharge.
3.2 Waste waterdischarge
3.2.1Waste water discharge of the heat source station
The main waste water in this project are softened water drainage, boilers’ sewage water, blower cooling water, miscellaneous flushing water and domestic waste water, etc. the softened water drainage, blower cooling water and boilers’ sewerage water are used for slag flushing of cold slag device and the wetting of ash and slag; the domestic waste water treated by septic tank goes into municipal drainage network together with miscellaneous flushing water, and finally arrives at sewage treatment plant, the situation of waste water pollutants discharge in heat source plant is stated in table 3-2.
表3-2 Situation of waste water pollutants discharge t/d
Item / Sewage Procedure / Waste Water generated / Drained / Pollutant concentration，mg/L / DirectionpH / CODCr / SS
Fan cooling water / W1 / 25 / 0 / 50 / 30 / Use for the dust and slag removal
Furnace cooling water / W2 / 14 / 0 / 50 / 30
Boilers’ sewage water / W3 / 6.2 / 6.2 / 50 / 40 / Sewage treatment plant
Softened water drainage / W4 / 20.8 / 20.8 / 30 / 40
Domestic sewage / W5 / 6.7 / 6.7 / 7.0 / 240 / 120
Total / 72.7 / 33.7
3.2.2Waste water produced by heat exchange station
One person is assigned on duty for each heat exchange station, that is totally 32 people, moreover they are the management personnel as well. There is little sanitary sewage water that will not have any influence on the periphery environment.
Table 3-3 The sanitary sewage water generated by personnel on duty
Sewage source / Quantity of waste water（t/a） / Name of pollutant / Effluent concentration（mg/L） / Discharge quantity
（t/a） / Discharge situation
Working staff / 733 / CODCr / 240 / 0.17 / Into municipal pipeline network
SS / 180 / 0.13
Ammonia nitrogen / 25 / 0.018
3.2.3 Waste water produced by heat network
After the implementation of the central heat supplying project, the working people of heat network will bring some sanitary sewage water which would be drained into municipal pipeline network.
Table 3-4 The sanitary sewage water generated by maintenance staff of the heat network
Sewage water source / Quantity of waste water（t/a） / Name of pollutant / Effluent concentration（mg/L） / Discharge quantity
（t/a） / Discharge situation
Working staff / 930 / CODCr / 240 / 0.22 / Into Municipal pipeline network
SS / 180 / 0.17
Ammonia nitrogen / 25 / 0.02
All of drainage produced by the project will drained into municipal pipeline network and drained into municipalsewage farm. The water quality of these waste water can meet the need of Water Quality Standard of the Sewage Discharged into Urban Sewer （CJ3082-1999）.
3.3Solid waste produced the project
3.3.1 Solid waste produced by boilers
The solid waste of this project are mainly the ash and slag during combustion of fuel coal and a little sanitary garbage. The ash and slag (S1) output is 11635.6t/a, which is used for the materials of brick making; while the sanitary garbage (S2) with an output of 8.9t/a will be delivered to burying yard for disposal in Yangjiazhangzi. The estimation of the ash and slag quantity in the heat source plant is specified in table 3-5.
Table 3-5 Assessment table of the ash and slag quantity
Estimation of ash and slag quantity / Coal quality / Name / Output t/h / Day output t/d / Annual output t/a3×29MW / Designed quality / Slag / 4.0 / 80 / 9364.7
Ash / 0.97 / 19.4 / 2270.9
Total / 4.97 / 99.4 / 11635.6
Utilization quantity of ash and slag / 11635.6t/a
3.3.2 Solid waste produced by heat exchange stationand heat network
The output rate of sanitary garbage by working staff of heat network and heat exchange stations are0.84t/aand the garbage will be delivered to garbage disposal plant for central treatment by environment protective department.
3.4 Summary statement of the pollutant generated by the project
The summary statement of pollutant discharge after the implementation of the project is specified in table 3-6.
Table 3-6 Summary statement of the pollutant generated by the project
Plant area / Item / Discharge quantity / Discharge quantity of pollutants t/a / RemarkSHeat source plant / Waste gas / 3.3×108
Nm3/a / SO2 / Fuel dust / Into air
79.6 / 58.5
Waste water / 5000t/a / CODCr / SS / Municipal pipeline network
0.29 / 0.28
Solid waste / Ash and slag11635.6t/a（central utilization），Sanitary garbage 8.9t/a（Landfill）
Heat exchange station / Waste water / 733t/a / CODCr / SS
0.17 / 0.13 / Municipal pipeline network
Solid waste / Sanitary garbage 0.38t/a / Landfill site
Heat network / Waste water / 930t/a / CODCr / SS
0.29 / 0.21 / Municipal pipeline network
Solid waste / Sanitary garbage 0.46t/a / Landfill site
Engineering summary / Waste gas / 3.3×108
Nm3/a / SO2 / Fuel dust / Into air
79.6 / 58.5
Waste water / 6700 t/a / CODCr / SS / Municipal pipeline network
0.68 / 0.58
Solid waste / Ash and slag11635.6t/a（utilization），Sanitary garbage 9.7t/a（Landfill）
3.5Situation of substitutescattered boiler rooms
After implementation, the project will substitute 5 scattered boiler rooms within the heat supplying area, totally 10 boilers with overall capacity of 80t/h and heat supplying area of 415,000m2.
Table 3-7 shows that the annual discharge quantity of each pollutant in boiler room: fuel dust 110.58t, SO2248.32t, waste water1650t, CODCr0.199t, SS0.29t, and slag 4554t.
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Tab.3-7 Situation of exserviee scattered boiler rooms
Name / Capability，tonnage×number / Name / Heating area，
ten thousand m2 / Coal dosage，t/a / Chimney / Waste gas / Waste water / Ash and slag
，t/a
H
m / D
m / T
℃ / Mist, ten thousand,m3/a / TSP，t/a / SO2，t/a / Waste water，t/a / CODCr，t/a / SS，t/a
1 / 20 t boiler rooms / 20×1 / 20 / 10.3 / 8000 / 40 / 0.8 / 120 / 2876 / 45.6 / 102.4 / 310 / 0.031 / 0.038 / 1881
2 / center boiler rooms / 6×2 / 12 / 6.2 / 3500 / 30 / 0.6 / 120 / 1365 / 19.95 / 44.8 / 256 / 0.026 / 0.039 / 817
3 / long march / 6×1
10×1
15×1 / 31 / 16.0 / 5000 / 35 / 1.0 / 110 / 3651 / 28.5 / 64 / 710 / 0.071 / 0.107 / 1168
4 / Lianhua Hill / 6×2
6×1
4×1 / 16 / 8.3 / 2500 / 35 / 0.6 / 120 / 1845 / 14.25 / 32 / 336 / 0.033 / 0.049 / 584
5 / senior high school / 1 / 1 / 0.7 / 400 / 10 / 1.0 / 110 / 269 / 2.28 / 5.12 / 38 / 0.038 / 0.057 / 94
Total / 10entries / 80 / 41.5 / 19400 / 10006 / 110.58 / 248.32 / 1650 / 0.199 / 0.29 / 4554
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After the implementation of this project, all of these small boiler room will be shut down, and all the low chimneys will be eliminated, which would improve the environmental air quality of Yangjiazhangzi zone greatly.
Table 3-8 shows the emissions and air quality of each pollutant before the implementation of this project and after the implementation of that.
Tab.3-8 Emissions and Air Quality
Dust / SO2Emissions / PM10
Air Quality
(Daily Average) / Emissions / Air Quality(Annual Average)
Current / 110.58 / 0.543 / 248.32 / 0.039
After Project Completion / 58.5 / 0.5423 / 79.6 / 0.0374
Decrement / 52.08 / 0.0007 / 168.72 / 0.0016
4 Analysis of the Environmental Impact
This Chapter is aiming at collecting the negative environmental impact of the project, which is mainly based on the environmental impact report of the project.
4.1 Status Quo of Environment Quality
(1) Ambient Air Quality
Tab.4-1 Ambient Air Quality
Monitoring time / Monitoring spots / TSP / SO2Daily mean concentration ranges / standard / Hourly concentration ranges / standard / Daily mean concentration ranges / standard
from 13 Jan., 2007 to 15 Jan., 2007 / 1 / 0.258
～0.543 / 0.30 / 0.004
～
0.054 / 0.50 / 0.025～0.039 / 0.15
Both the daily mean and hourly value of SO2 inthe monitoring spots can meet the standard.
TSP over standard has been found in the monitoring spot.
（2）Acoustic Environment Quality
The noise monitoring value of construction spot and 13 heat-exchange stations is up to Grade Ⅱof Standard of environmental noise of urban area. (GB3096-93).
The ambient noise surrounding the residential area meets the requirement of the standard.
4.2Environmental Impact Analysis during Construction Period
4.2.1Environmental impact analysis on heat source plant and heat-exchange station during Construction
(1) The impact of blowing dust during construction
The ground blowing dust during construction period is mainly from transportation vehicles and other vehicles used for construction. The analogy investigation data shows that blowing dust produced by construction and vehicles for transportation has a significant impact on a range within 30m from both sides of road, and the concentration of TSPcan reach 10mg/ m3 or more.
(2) Waste gas during construction
The pollutants contained NO2, CO, CmHn, etc are the results of the oil-burning machineries and automobile exhaust. It is showed in the related test result that that the concentration of NO2 is 150μg/ m3, and the impact range can reach 200 m round.
(3) Waste water during construction
Domestic sewageproduced by the constructors during constructioncontained the main pollutants such as SS, CODCr,is main wastewater
(4) Noise during construction
Noise during constructionis generated mainly by the different machines and vehicles, as well as bulldozer, grab, loader and unloader, pile driver in the primary period, concrete mixer, etc. The noise intensity and equivalent sound level located at different distances from the sound source is shown in Table 4-2. Noise attenuation calculated by the attenuation of sound pressure level in free-field of spot resource.
Table 4-2 Main noise source intensity and noise value at different distances Unit: dB(A)
Constriction period / Main noise source / Sound level / Distance from sound source (m)20 / 40 / 60 / 80 / 100 / 200 / 400 / 1300
Earthwork period / Gab and bull dozer etc / 90~102 / 66~76 / 60~70 / 56~66 / 54~64 / 52~62 / 46~56 / 40~50 / 29~39
Basic period / Pile driver / 112~122 / 86~96 / 80~90 / 76~86 / 74~84 / 72~82 / 66~76 / 60~70 / 49~59
Structure period / Concrete mixer / 92~100 / 66~76 / 66~76 / 56~66 / 54~64 / 52~62 / 46~56 / 40~50 / 29~39
Concrete vibrator / 87~97 / 61~71 / 55~65 / 51~61 / 49~59 / 47~57 / 41~51 / 35~45 / 25~38
(5) Waste and backfill during construction
Heat source plant and heat-exchange stationsdo no harm effect to the ecological environment during construction. The earthwork generated not cleaning our in time during construction and backfill will do great effect on the form of secondary blowing dust to the ambient environment on once the beginning of the heave wind.
4.2.2Environmental impact analysis on heat pipeline network during Construction
The environmental impact of laying heating pipe network changes with the differences of the laying methods of pipes.
(1)Analysis on atmospheric environmental impact
The blowing dust is the main reason caused the environmental atmospheric pollution during the operation of the pipeline network, especially the blowing dust during the earthwork digging and piling, materials transportation, pavement removing, earthwork backfilling, road recovering, and vehicles transportation.