The Study On Ecological Environment Impact And Its Preventive Countermeasures Of Guangnan Piggery In Heyuan City

In order to offer some reference and technical surport,the thesis put forward some feasible measures of economy and technology, through analysis on the environment influence in opration, taking a case frome Guangnan piggery of Heyuan city. Firstly, the thesis analyses the around condition and emission intensity of the piggery on waste water, wastegas, waste solid and noise. Based on water and gas moiting date and environmetal quality assessment methods, the thesis assesses the environmetal quality of around piggery. Then combining the emission intensity and environmental status, the thesis deeply analyses the environmental influences of piggery and does a prediction analysis in un-normal emission conditions. At the end, the thesis obtains treatments, which are economy and technology feasible measures.Through environmental evaluation, the thesis obtains some conclusions:air quality accords with the gradeⅡof Ambient air quality standard(GB3095——1996) in around piggery; water quality accord with each function area's requirement; acoustic environmental quality get Environmental quality standard for noise(GB3096——2008) in around piggery; soil quality accords with the requirements of Environmental quality standard for soils(GB15618——1995).Through prediction analysis, the thesis obtains some conclusions:afte building-up, the odor's normal emission will not cause harmful effects to the around environment,which un-normal emission will generate some effects to the around environment, but whatever will not generate harmful effects to the residents of sensitive points. Because diesel generator, canteen waste gas in low emission intensity, it will not cause harmful effects to around environment.Afer building-up, the project's water water will cause BOD5 and ammonia nitrogen values increasing but still according with each function area's requirment, but which in un-normal condition will cause Tangbei river over standard.The piggery's noise will cause some effects to environment but still reach the standard.The project's waste soild will not cause harmful effects to the around environment of piggery.