长沙市生活垃圾卫生填埋生命周期评价  

Life Cycle Assessment of Sanitary Landfill of Domestic Garbage in Changsha

作　　者：陈艾伦[1] 陈婵[1] 陶夏秋 王光军[1] 

机构地区：[1]中南林业科技大学生命科学与技术学院,湖南长沙410004

出　　处：《环境科学与技术》2013年第S2期390-395,411,共7页Environmental Science & Technology

基　　金：湖南省大学生研究性学习和创新性实验计划项目:城市生活垃圾多循环处理与资源化利用途径研究(湘教通[2013]191号);教育部"本科教学工程"第一批本科专业综合改革试点项目(教高司函[2013]56号ZG0373);湖南省教改项目:生态学实践课程改革和学生创新能力培养研究

摘　　要：该文主要针对长沙市目前的城市生活垃圾产生和处理现状,进行较为系统的生命周期评价(LCA)。通过目标和范围的确定,对长沙市生活垃圾的卫生填埋处理进行清单分析,最终通过计算填埋气体和渗滤液的排放量得出卫生填埋对环境影响的潜力。结果表明:长沙市日产生活垃圾3 700多t,其中填埋处理每吨垃圾所排放的主要污染物CO2在107 kg左右,CH4在51 kg左右,垃圾填埋对温室效应的环境影响潜力为1.6×10-2kg当量(/人·a),酸化的环境影响潜力为3.2×10-3kg当量(/人·a)。研究结果将为城市生活垃圾多循环处理与资源化利用途径研究项目提供基础数据。This thesis is directed against mainly about the present domestic garbage and treatment status to evaluate systematic life cycle assessment in Changsha.According to determine the goal and scope,we make the life cycle inventory analysis of sanitary landfill of domestic garbage in Changsha,and get the potential of sanitary landfill on the environmental impact by calculating the landfill gas and leach ate discharge in the end.The results show that Changsha daily produce about 3 700 tons domestic garbage,of which,the main pollutants including CO2is about 107 kg and CH4is about 51 kg emissions by landfill of garbage per ton.Environmental impact potential of garbage landfill to the greenhouse effect is 1.6 ×10-2equivalent man and acidification is 3.2×10-3equivalent man.The findings will provide basic data for project which research on recycling processing and resource utilization way of domestic garbage.

关 键 词：生命周期评价 城市生活垃圾 卫生填埋 长沙市 

分 类 号：X799.3[环境科学与工程—环境工程]