CAJ | 학술논문

通过生命周期评价（LCA）的方法,对上海市某区生活垃圾处理现状及4个不同可选处理方案的温室气体（GHG）排放量进行了分析。结果表明,当前该区生活垃圾处理系统的GHG排放总量为776.42 t CO2eq.,其中填埋、焚烧和堆肥分别占33%、39%和20%,其他处理单元仅占8%。通过4个可选方案的对比表明,采取垃圾分类收集、资源回收、厌氧消化和堆肥残渣焚烧处置等措施可有效降低该区生活垃圾处理系统的GHG排放,其中综合了上述4类措施的优化方案四的GHG减排量最高,达44%。此外,敏感性分析数据表明,生活垃圾的厌氧消化比例对GHG减排影响比较显著,因此厌氧消化可作为可生化垃圾的优先处理技术。
통과생명주기평개（LCA）적방법,대상해시모구생활랄급처리현상급4개불동가선처리방안적온실기체（GHG）배방량진행료분석。결과표명,당전해구생활랄급처리계통적GHG배방총량위776.42 t CO2eq.,기중전매、분소화퇴비분별점33%、39%화20%,기타처리단원부점8%。통과4개가선방안적대비표명,채취랄급분류수집、자원회수、염양소화화퇴비잔사분소처치등조시가유효강저해구생활랄급처리계통적GHG배방,기중종합료상술4류조시적우화방안사적GHG감배량최고,체44%。차외,민감성분석수거표명,생활랄급적염양소화비례대GHG감배영향비교현저,인차염양소화가작위가생화랄급적우선처리기술。
Life cycle assessment（LCA） is applied to study the current situation and four different alternative scenarios of greenhouse gas（GHG） emission from household refuse treatment in a district of Shanghai.The results show that the present total GHG emission is 776.42 t CO2 eq.,of which landfill,incineration and composting contribute 33%,39% and 20% respectively,and other processes only contribute 8%.Compared with four alternative scenarios,we find that the measures such as separate refuse collection,resources recovery,anaerobic digestion and incineration of composting residues can effectively reduce GHG emission from household waste treatment.Among the programs obtained by optimizing all four scenarios,the fourth one has the highest GHG mitigation up to 44%.In addition,sensitivity analyses show that proportion of anaerobic digestion has a significant effect on GHG mitigation,so it could be considered as the preferential technology in treating biodegradable refuse.