低碳化学与化工2025，Vol.50Issue(9)：27-35,9.DOI:10.12434/j.issn.2097-2547.20240374
基于生命周期法的社区生活垃圾碳排放核算
Carbon emission accounting of community municipal solid waste based on life cycle assessment
任晓灵 1王晓燕 1尹朋建 1李剑颖 1赖金丽 1任一 2王晰 2王成君3
作者信息
- 1. 北京市城市管理研究院 生活垃圾检测分析与评价北京市重点实验室,北京 100028
- 2. 北京市环境卫生管理事务中心,北京 100067
- 3. 北京环境卫生工程集团有限公司,北京 100067
- 折叠
摘要
Abstract
Conducting carbon emission accounting for the entire process of municipal solid waste management under the context of waste classification and analyzing the key carbon emission stages can provide data support for carbon reduction.Taking a typical community in Beijing as the research object,material flow analysis was performed on the collection,transportation and treatment processes of food waste and residual waste.Based on the life cycle assessment(LCA)approach,a carbon emission accounting boundary diagram was developed,and a carbon emission accounting method was subsequently established.Through carbon emission calculation and analysis,it s found that the key carbon emission stage in the entire process of community municipal solid waste management is the incineration of fossil carbon in residual waste,with direct carbon emissions amounting to 612.70 kg/d.The main factors contributing to the high direct carbon emissions are the incineration of plastics and paper.The net carbon emission for the entire process of food waste management is 3.36 kg/d,with the carbon emission contributions from each stage,ranked from highest to lowest,as follows:Anaerobic digestion system(7.95 kg/d),leachate treatment(6.55 kg/d),waste collection and transportation(2.38 kg/d),pre-treatment(1.25 kg/d),and solid residue incineration(0.65 kg/d).The incineration of waste generates a large amount of CO2,and in the future,CO2 capture and utilization technologies may become a primary pathway for carbon reduction in waste incineration.Carbon emissions in the entire process of municipal solid waste management can be reduced by limiting plastic at the source or recycling plastics to decrease waste volume.Additionally,refining food waste classification can reduce the load on food waste treatment facilities and solid residue output,thereby reducing carbon emissions.Carbon reduction in the food waste management process can also be achieved through the high-value utilization of its by-products.关键词
社区生活垃圾/垃圾分类/碳排放/生命周期法Key words
community municipal solid waste/waste classification/carbon emissions/life cycle assessment分类
建筑与水利引用本文复制引用
任晓灵,王晓燕,尹朋建,李剑颖,赖金丽,任一,王晰,王成君..基于生命周期法的社区生活垃圾碳排放核算[J].低碳化学与化工,2025,50(9):27-35,9.
