Abstract：
Landfilling is the least preferred method in the hierarchy of solid waste management options, but it is the most widely practiced option. Thus, identification of environmentally and economically suitable landfill sites should be of prime importance. The main objective of this study is to identify environmentally and economically suitable landfill sites using fuzzy analytical hierarchy process-based weighted linear combination model within a GIS environment. This study also used the DRASTIC-based groundwater vulnerability index and distance of landfills from densely populated areas to protect groundwater and reduce cost of transportation of solid waste which were not considered by the previous studies. Using the previously reported methods, a total of 132 landfill sites were found environmentally suitable in the study area. But, after applying DRASTIC-based groundwater vulnerability index, the number of environmentally suitable sites reduced to 95. When the proximity of the 95 sites to densely populated areas was considered to reduce waste transportation cost, the number of selected sites further reduced to 21 site and they can be considered the most environmentally and economically suitable landfill sites. This study will help the policy makers and the concerned SWM authorities to construct the engineered landfills at environmentally and economically suitable landfill sites in the study area and in other similar areas.
摘要：
填埋是固体废物管理方案层次结构中最不优选的方法，但这是最广泛使用的选择。因此，确定环境和经济上合适的垃圾填埋场应该是最重要的。这项研究的主要目的是在GIS环境中使用基于模糊分析层次过程的加权线性组合模型来确定环境和经济上合适的垃圾填埋场。这项研究还使用了基于DRASTIC的地下水脆弱性指数和垃圾填埋场与人口稠密地区的距离，以保护地下水并降低固体废物的运输成本，这是以前的研究未考虑的。使用以前报道的方法，研究区内共发现132个环境适宜的堆填区。但是,在应用基于DRASTIC的地下水脆弱性指数后，适合环境的地点减少到95个。当95个地点靠近人口稠密地区被认为可以降低废物运输成本时，选定地点的数量进一步减少到21个地点，它们可以被认为是环境和经济上最合适的垃圾填埋场。这项研究将帮助政策制定者和有关SWM当局在研究区域和其他类似区域的环境和经济上合适的垃圾填埋场建造工程垃圾填埋场。
