运用EASEWASTE对污泥填埋系统的生命周期分析  

Environmental assessment of sludge landfill in a life-cycle-perspective using EASEWASTE

作　　者：黄慧[1,2] 牛冬杰[1,3] 

机构地区：[1]同济大学环境科学与工程学院长江水环境教育部重点实验室,上海200092 [2]深圳市深水宝安水务集团有限公司,广东深圳518101 [3]同济大学联合国环境规划署-同济大学环境与可持续发展学院,上海200092

出　　处：《中国环境科学》2012年第10期1906-1913,共8页China Environmental Science

摘　　要：运用EASEWASTE对污泥与矿化垃圾混合填埋并用泥土作为覆盖材料的系统进行了生命周期分析.结果表明,污泥填埋的环境影响主要表现为存储的生态毒性(水)、温室效应和持久性生态毒性(土壤).其最大的污染因子分别为Cu、CH4和As.相比于前处理单元和运输单元,污泥填埋单元的环境影响最大,应尽可能加以控制.敏感性分析表明,降低渗滤液的产生量、提高填埋气的收集率以及把收集到的填埋气进行产热发电等综合利用都能有效的降低系统对环境的污染.应加强对填埋阶段的污染控制,改进填埋场的填埋气收集处理技术,规范日覆盖等填埋操作过程,加强渗滤液的收集和处理,最大程度的减小环境污染.Life cycle assessment of sludge-aged refuse landfill with soil cover was conducted based on EASEWASTE which is developed by Danish Technological University.The results showed that the main impacts of the sludge landfilling were stored ecotoxicity via water（SETw）,global warming（GW） and stored ecotoxicity via soil（SETs）,which could be originated to Cu,CH4and As in the wastes,respectively.The emission from sludge landfilling module was greater than that from pretreatment and transportation process.Therefore,pollution control should be enforced in landfilling process.The sensitivity analysis results indicated that the pollution could be alleviated through reducing the amount of leachate,increasing collection efficiency and utilization rate of landfill gas.

关 键 词：污泥混合填埋 矿化垃圾 EASEWASTE 环境影响 

分 类 号：X703.5[环境科学与工程—环境工程]