生活垃圾填埋场开采再利用碳排放模型及其应用  

A carbon emission model for domestic waste landfill mining and reuse and its applications

作　　者：俞金灵 彭明清 徐辉 刘文莉[2] YU Jinling;PENG Mingqing;XU Hui;LIU Wenli(School of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China;School of Civil Engineering and Architecture,Taizhou University,Taizhou 318000,China)

机构地区：[1]浙江理工大学建筑工程学院,杭州310018 [2]台州学院建筑工程学院,浙江台州318000

出　　处：《浙江理工大学学报（自然科学版）》2024年第2期245-254,共10页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：浙江省自然科学基金项目(LY21E080029)。

摘　　要：采用碳排放因子法建立了生活垃圾填埋场开采再利用的全生命周期碳排放模型,核算了单位质量填埋垃圾在保持原状、开采-材料再回收和开采-能源回收三种场景的碳排放量,分析了开采再利用场景下碳减排主要驱动因素与碳减排量的影响规律,探究了填埋场开采再利用相对于保持原状的碳减排潜力。结果表明:开采-材料再回收场景的碳排放量少于开采-能源回收场景;开采-材料再回收场景的碳减排量随塑料回收率的提高而增大,开采-能源回收场景的碳减排量随垃圾衍生燃料热处理量的增加而增大;简易填埋场在开采-材料再回收场景的碳减排潜力最大,达-495 kgCO_(2)eq/t。该研究可为我国垃圾填埋场开采再利用的碳减排潜力评估提供一定的参考依据。A carbon emission model for the full life cycle of domestic waste landfills was constructed by using the carbon emission factor method.The carbon emissions of unit mass waste were calculated under three scenarios:'keep do-nothing'scenario,'waste to material'scenario and'waste to energy'scenario.This model explored the primary factors driving carbon emission reduction and the influence of carbon emission reduction in mining and reuse scenarios,and investigated the potential for carbon emission reduction through landfill mining and reuse as compared to the preservation of the landfill in'keep donothing'scenario.The above results show that the carbon emission of the'waste to material'scenario is less than the'waste to energy'scenario;the carbon emission reduction in the'waste to material'scenario increases with the increase of the plastic recovery rate,and the carbon emission reduction in the'waste to energy'scenario increases with the increase of the heat treatment amount of refuse derived fuel;the carbon emission reduction potential in the'waste to material'scenario of the simple landfill is the best,up to-495 kgCO_(2)eq/t.These conclusions can provide certain reference for the assessment of carbon emission reduction potential of landfill mining and reuse in China.

关 键 词：城市生活垃圾 单位质量填埋垃圾 填埋场开采再利用 材料和能源回收 碳排放模型 碳减排量 

分 类 号：X705[环境科学与工程—环境工程]