| Tianjin East City Li the area A project is uses the increase and the countryside collective construction by the cities construction uses to reduce links up, changes houses the construction by the homestead to demonstrate the small cities experiment site project.This itemized appraisal report investigation understanding plans to construct the area environment quality present situation, appraises this local environment present situation level; Forecast the project construction period, the lifetime to the environment outside the influence scope and the degree as well as the lifetime the environment to the project itself influence and the scope, prove its environment feasibility; For following enhancement this area environment work and so on level corresponding environmental protection countermeasure and suggestion, environmental protection measure and design proposal, environmental protection management plan provides the decision-making reference. This report has profited from colleague many years to the project environmental effect appraisal practice and the experience, has utilized the environmental effect recognition methods, environmental effect forecast appraisal methods and so on in method, environmental effect appraisal risk assessment and economic analysis appraisal.This article divides according to the time and the spatial different stage into the Tianjin A project present situation environment investigation and the source of pollution recognition, constructs the local environment present situation investigation and the appraisal, the construction period environmental effect appraisal, outside the lifetime environmental effect appraisal, the area chapters and so on environmental effect appraisal, in each different stage, mainly from dimensions and so on air, water environment, solid waste, sound environment with emphasis carries on the environmental effect analysis appraisal, specifically as follows:(1) through the environment investigation and the source of pollution recognition analysis, chooses to the environmental effect big appraisal factor, definite environmental effect appraisal content, appraisal key, appraisal job class and appraisal scope.(2) constructs the local environment present situation investigation and the appraisal, including atmospheric environment quality, water environment quality, sound environment quality, situations and so on soil environment quality.(3) construction period environmental effect appraisal main appraisal project construction period construction relocation, the land reclamation, the necessary facilities engineering as well as the principal part of a project construction produces raises the dust, the mechanical device noise to the environmental effect, simultaneously the waste water, the solid waste as well as the destruction existing pipeline which produces to the construction period have environmental effects and so on the risk to carry on the brief analysis.(4) lifetime environmental effect appraises to the housing inhabitant fuel gas waste gas as well as male constructs waste gas and so on kitchen lampblack, automobile exhaust, public toilet, trash pick-up point unusual smell the influence carries on the analysis to the environment; Outside(5) area the environmental effect appraisal main analysis investigates outside the selected location peripheral main area the source of pollution and the source of pollution possibly the influence which produces to this project carries on the analysis to the area outside.1. present situation environment analysisThe Tianjin A project selected location west side, the east side present situation annoyance value day between 49.1~56.2dB(A), at night between 46.2~49.2dB(A), the region center present situation annoyance value day between 50.4~54.4dB(A), at night between 46.9~48.6dB(A), is lower than "Sound Environment quality Standard" 2 kind of day standards 60dB(A), at night the standard is 50dB(A). The south side near the Tianjin pond road, the present situation annoyance value day between 73.7~77.0dB(A), at night between 73.8~75.3dB(A), the north side near the Tianjin shore highway, the present situation annoyance value day between 68.8~72.5dB(A), at night between 59.7~61.5dB(A), is higher than "Sound Environment quality Standard" the 4a kind of day standard 70dB(A), at night the standard is 60dB(A), Exceeding the allowed figure. Is apart from Jingshan railroad point blank range approximately 80m, after blows a whistle the noise influence value present situation monitor value day from the weaken rear rank vehicle is 70.0~72.8dB(A), at night is 68.6~69.1dB(A), surpasses GB3096-2008 at night "Sound Environment quality Standard" a 4a kind of request. Obviously, the traffic noise is serious to the region sound environmental effect, the environment quality is bad along the transportation skeleton line nearby, in the next region development the inhabitant housing establishment in nearness path one side, in the region development will be supposed the reasonable layout, to reduce as far as possible not suitably the noise the influence which will live to the cities inhabitant.2. Construction period environmental effect appraisalThis project construction period inner tube comes certain construction to raise the dust, the construction noise as well as produces construction trash and the waste water.(1)constructs raises the dustto raise the dust monitor result by the work site to be possible to know, is apart from this project to execute the workshop to be able the varying degree to receive this project construction in the 150m ambient air to raise the dust the influence.。(2) constructs the noiseto forbid the construction at night under the premise, all sensitive goal place noise influence value satisfies GB3096-2008 "Sound Environment quality Standard" (2 kinds) the limiting value request.(3) constructs the fuel gas waste gas, the waste water, the solid wasteLabourer kitchen work burns with the liquid gas, can have the few fuel gas waste gas production, estimated cannot have the influence to the ambient air.This project construction period produces the waste water and the solid waste must take the active control measure, fixed time cleans up and takes away, centralized processing.Must pay attention is in the entire construction process, strengthens to the labourer troop's strict management, controls slightly it to the environment influence.3. lifetime environmental effect appraisal(1)after the waste gasThis project operation, the plan centralism heat source heats jointly by the military provisions city thermal power plant, the main atmospheric source of pollution and male constructs the cafeteria lampblack, the transfer post, the public toilet, the rain water pumping station unusual smell for the inhabitant which the fuel gas waste gas and the automobile exhaust as well as male construct possibly produce.Fuel gas waste gas: This project kitchen work process can produce the fuel gas waste gas, the fuel gas waste gas computation pollutant withdrawal for mist and dust 0.799t/a, SO21.67t/a, NOX4.88t/a.The natural gas is the clean energy, the emissions pollutant quantity are few, cannot have the obvious influence to the environment.Automobile exhaust: In the underground parking garage automobile exhaust the main pollutant is NOX, CO, THC.In the underground garage ventilates the air-interchange system in the normal operation situation, the underground garage air shaft discharges the air pollutant satisfies GB3095-1996 relatively "Ambient air Quality specification" two levels of requests, the waste gas withdrawal few, estimated the automobile exhaust cannot have the remarkable influence to the local environment air quality.Male constructs the dining lampblack: This project necessary male constructs the possible synchronization to construct the cafeteria.Above cafeteria should defer to may grind the design use natural gas, the natural gas is the clean energy, the fuel gas quantity are few, therefore the fuel gas pollutant withdrawal is small, estimated the above pollutant cannot have the obvious influence after the atmospheric diffusion to the ambient air quality.Unusual smell: The plan sets up 12 public toilets.The plan sets up the public toilet and the apartment building maintain certain distance, certainly also must manage by the specialist, avoids having the influence to the inhabitant; The rain water pumping station possibly appears the odor gas the pollution, suggested the architectural design and the equipment select use half place equation below design, uses deodorizes the craft pair process odor gas to carry on the government; Mainly adopts the essential management, the control measure regarding trash station unusual smell prevents the unusual smell the production.(2) waste waterThis project waste water originates mainly and male constructs the personnel sanitary sewage for the inhabitant, waste water emissions total quantity approximately 4822.5m3/d, in the waste water the pollutant mainly for the zoology and botany oil, SS, CODcr, BOD5, the ammonia nitrogen, the total phosphorus and so on.After transport business time produces the sanitary sewage, the oiliness waste water pass through the septic tank, oil separation tank processing separately discharge, estimated the waste water discharge outlet in the mix water quality pH, SS, CODcr, BOD5, NH3-N, the total phosphorus, the zoology and botany oil can satisfy the main pollutant density satisfies DB12/356-2008 "Sewage Synthesis Emissions Standard" (three levels) the limiting value request.(3) noiseIn project area the main noise source is the heat transfer station, the water plant, the transformer substation, the rain water pumping station noise.According to the analogy, in which transformer substation equipment noise source is 50~65dB(A), the heat transfer station equipment noise source is 85~90dB(A), the rain water pumping station, the water plant water pump noise source is 95dB(A), moreover, this project establishment male constructs the project like grocer, the recreational activity center, the inhabitant moves the location and so on to be able to have certain social noise.After carries out the corresponding noise control measure, is assigned away from the capital the noise to be able to satisfy GB22337-2008 to the building of residence noise influence value "Social life Ambient noise Emissions Standard" 2 kind of requests, cannot the foreign environment constitution influence(4) solid wasteThe waste packing, the kitchen in the housing inhabitant and the administrative personnel which the lifetime solid waste main origin which produces life trash, the management male constructs produces -odd and so on the solid waste, has the quantity is approximately 6167t/a.4. External environment influence analysisThe military provisions city thermal power plant is located southwest this project selected location the 1.5km rice, according to the present situation monitor data, selected location region four convention pollution factor SO2, PM10, NO2, the CO hour value and the date average value can satisfy GB3095-1996 "Ambient air Quality specification" (two levels) the related environment standard request.The military provisions city demonstrates small cities also to move in the area the community to be away from Jingshan railroad point blank range approximately 80m, after blows a whistle the noise influence value from the weaken rear rank vehicle is approximately 61.8~86.8 dB(A), the construction side in the development construction should consider fully the Jingshan railroad the noise influence, causes the building of residence to be far away the Jingshan railroad as far as possible, and takes the effective soundproofing measure.This project also moves the area plan road both sides housing day to satisfy the 4a kind of day standard, appears the overproofed phenomenon at night, exceeds the allowed figure most greatly 12.2dB(A).Also moves the area to construct itself designs has the soundproofing measure, the design sound insulation quantity above 20dB(A).This appraisal basis limited long-line acoustic source carries on the forecast from the weaken point source reduction formula, after like this passes through the distance to weaken, the construction sound insulation, the path both sides constructed the internal noise influence value recently approximately 48.5/47.2dB(A), in 2 kind of noise standard limiting values.Outside but recently constructed the diurnal ultra 2 kind of noise standard limiting value, therefore the peripheral road traffic noise estimated could have certain influence to the inhabitant normal life. |
PDF Full Text Request