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首页> 外文期刊>Journal of Cleaner Production >Comparative assessment of waste disposal systems and technologies with regard to greenhouse gas emissions: A case study of municipal solid waste treatment options in China
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Comparative assessment of waste disposal systems and technologies with regard to greenhouse gas emissions: A case study of municipal solid waste treatment options in China

机译：对温室气体排放的废物处理系统和技术的比较评估 - 以中国市政固体废物处理选择为例

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摘要

Municipal solid waste (MSW) management has shifted to include multiple functions, especially energy recovery and reduction of greenhouse gas emissions, other than sanitary treatment of waste. In China, two main MSW treatment options exist: landfill and incineration. The objective of this study was to evaluate the landfill and incineration methods in terms of two important indicators, energy balance and greenhouse gas (GHG) emissions, and to discuss the advantages as they relate to decarbonization policy. We set up two landfill cases: LF-Anaero, which adopted an anaerobic landfill structure, and LF-SAero, which adopted a semi-aerobic landfill structure. Two incineration cases were also established: INC-Non, where the MSW was not subjected to separated collection of non-burnable waste, and INC-Sep, where separated collection was conducted. Two conditions were also established. In the one-year condition, waste was assumed to entirely decompose in one year, whereas in the variable decomposition condition, the rate varied. Under the one-year condition, INC-Sep gave the best results for both energy balance and GHG emission reduction. When the decomposition rate of landfilled waste was considered, LF-SAero and INC-Sep had very similar cumulative amounts of GHG emissions after 50 years. However, in INC-Sep, the emissions all occurred in the first 20 years. In LF-SAero, about one-third of the emissions were accounted for in the last 30 years (after the landfill was out of service). Thus, this landfill method must be considered as a GHG emission source for a longer period when considering the total global warming impact. We concluded that INC-Sep is the superior technological option. (C) 2020 Elsevier Ltd. All rights reserved.
机译：市政固体废物（MSW）管理已转移到包括多种功能，特别是能量回收和减少温室气体排放，除了卫生处理废物。在中国，存在两种主要的MSW治疗方案：垃圾填埋场和焚烧。本研究的目的是根据两个重要指标，能量平衡和温室气体（GHG）排放来评估垃圾填埋场和焚烧方法，并讨论与脱碳政策有关的优势。我们建立了两种垃圾填埋场：LF-Anaero，采用厌氧垃圾填埋场结构和LF-Saero，采用了半机垃圾填埋场。还建立了两种焚烧案件：INC-非，其中MSW未经过分离的不可燃料废物收集，并进行分离的收集的INC-SEP。还建立了两个条件。在一年的条件下，浪费被认为在一年内完全分解，而在可变分解条件下，速率变化。根据一年的条件，INC-SEP为能量平衡和GHG减排提供了最佳结果。当考虑填埋废物的分解率时，LF-SAERO和INC-SEP在50年后具有非常相似的累积量的温室气体排放量。但是，在Inc-Sep中，排放量都发生在前20年。在LF-SARO中，在过去30年中约有三分之一的排放量（垃圾填埋场停止后）。因此，在考虑全球全球变暖影响时，必须将这种垃圾填埋场方法视为温室气体排放源。我们得出结论，INC-SEP是优越的技术选择。 （c）2020 elestvier有限公司保留所有权利。

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