Analyzing Waste Management System Alternatives for Kabul City, Afghanistan: Considering Social, Environmental, and Economic Aspects
Analyzing Waste Management System Alternatives for Kabul City, Afghanistan: Considering Social, Environmental, and Economic Aspects
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分析阿富汗喀布尔市的废物管理系统替代方案：考虑社会、环境和经济方面
DOI：
10.3390/su12239872
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发表时间：
2020
期刊：
影响因子：
3.9
通讯作者：
S. Hashimoto
中科院分区：
文献类型：
--
作者：
A. Azimi;Sébastien M. R. Dente;S. Hashimoto
我们早期的工作确定了利益相关者的社会问题，他们在阿富汗喀布尔市当前的废物管理系统（WMS）中高度暴露于不良的社会绩效。目前的工作建立在早期发现的基础上，详细阐述了四种具有更好社会结果的替代方案。对于当前系统的每种情景，进行了温室气体（GHG）和经济评估。结果表明，考虑到增加垃圾收集覆盖率、回收利用、不卫生填埋和非正规工人的整合，情景2是最佳选择。场景3是次优选择，它在场景2中添加了一个源分离系统。这两种方案解决了社会问题，可以减少温室气体排放，节省成本，并提供比当前系统更多的就业机会。相比之下，在情景1中没有回收利用，以及在情景4中将不卫生的垃圾填埋场转化为卫生填埋场，导致更高的成本和温室气体排放，尽管它们处理了社会问题，并为现有的废物管理实践创造了更多的就业机会。
Our earlier work identified social issues of stakeholders who are highly exposed to poor social performance in the current waste management system (WMS) of Kabul city, Afghanistan. The present work builds on earlier findings to elaborate four alternative scenarios with better social outcomes. For each scenario of the current system, greenhouse gas (GHG) and economic assessments were conducted. Results show that Scenario 2, considering increase waste collection coverage, recycling, unsanitary landfilling, and integration of informal workers, was found as the best alternative. Scenario 3, which added a source-separated system to Scenario 2, was the second-best alternative. These two scenarios address social issues and can reduce GHG emissions, save costs, and provide more jobs than the current system. In contrast, the absence of recycling in Scenario 1, and the conversion of unsanitary landfill into sanitary landfill in scenario 4 result in higher costs and GHG emissions, even though they deal with social issues and generate higher jobs to the existing waste management practice.