基于LCA的某垃圾焚烧厂大气污染物的环境影响分析

Environmental Impact Analysis of Air Pollutants in a Waste Incineration Plant Based on LCA

基于LCA的思想,该文研究了导致外部变暖的大气污染物PM_(2.5)、SO_(2)、NO_(2)、CO、CO_(2)、HC1、汞、二噁英、NH_(3)、H_(2)S、铅、镉和铬,面积25 km^2。全球变暖(GWP)、酸化(AP)、富营养化(EP)、生态毒性(ETP)以及光化学臭氧合成(POCP)的贡献和分析。结果表明,拟建项目生产的气态物质对环境的总环境影响潜值为8.98×10^(-2),其中POCP (3.93×10^(-2))>GWP (2.27×10^(-2))>AP (1.49×10^(-2))>EP(1.26×10^(-2))>ETP(1.03 ×10^(-7)),空气污染物PM_(2.5)、SO_(2)、NO_(2)、CO、CO_(2)、HC1、汞、铅、二噁英、NH_(3)、H_(2)S、铅、镉和铬物质中,CO_(2)和NO_(x)对环境的影响更大,应重点预防和控制。

Based on the idea of LCA,this paper analyzes the contribution of PM2.5,SO2,NO2,CO,CO2,HCl,mercury,dioxin,NH3,H2S,lead,cadmium and chromium to global warming(GWP),acidification(AP),eutrophication(EP),ecotoxicity(ETP)and photochemical ozone synthesis(POCP)outside the surrounding 25 km2 area.The results show that:the total environmental impact potential of gaseous substances produced by the proposed project is 8.99×10^(-2),among which POCP(3.94×10^(-2))>GWP(2.28×10^(-2))>AP(1.50×10^(-2))>EP(1.27×10^(-2))>ETP(1.04×10-7),CO_(2) and NOx are the most important pollutants in the air pollutants PM2.5,SO_(2),NO_(2),CO,CO_(2),HCl,mercury,lead,dioxin,NH3,H2S,lead,cadmium and chromium produced by the waste treatment plant.It has a great impact on the environment and should be focused on prevention and control.