Sanitary waste disposal and site selection for establishing landfills are challenging problems for environmental planners. This paper aims to take environmental, socio-economic, geological, geomorphological, hydrological and ecological factors into consideration to provide a decision support framework for landfill siting. Analytical hierarchy process (AHP) and Decision Making Trial and Evaluation Laboratory (DEMATEL) are coupled to develop an efficient multi-criteria decision-making method to be utilized in a Geographic Information System (GIS) environment for evaluating the suitability for landfill siting. As the first attempt to employ DEMATEL effectively in a landfill site selection problem, the proposed method is tested with landfill siting scenarios in New South Wales (NSW), Australia. Regional analysis is also performed to identify the potentially most suitable statistical divisions for landfill siting in NSW. The top two ranked zones covering 0.7% and 22% of the study area, respectively, are considered as the optimal areas for establishing landfills, while the bottom two ranked zones are not recommended for further consideration. Further detailed analysis is also conducted on the existing landfills, which shows that 1.0% and 37.0% of them are ranks 1 and 2, respectively. The scenario-based analysis implies that, among the contributing factors; geological and economic factors are highly important.

卫生废物处置和选址以建立垃圾掩埋场对环境规划人员来说是具有挑战性的问题。本文旨在考虑环境，社会经济，地质，地貌，水文和生态因素，为垃圾填埋场选址提供决策支持框架。层次分析法（AHP）和决策试验与评估实验室（DEMATEL）结合在一起，开发了一种有效的多准则决策方法，该方法可在地理信息系统（GIS）环境中用于评估填埋场选址的适宜性。作为在填埋场选址问题中有效使用DEMATEL的首次尝试，在澳大利亚新南威尔士州（NSW）的填埋场选址方案中对提出的方法进行了测试。还进行区域分析，以确定新南威尔士州填埋场选址的潜在最合适的统计部门。排名靠前的两个区域分别占研究区域的0.7％和22％，被认为是建立垃圾掩埋场的最佳区域，不建议排名靠后的两个区域作进一步考虑。还对现有的垃圾填埋场进行了进一步的详细分析，结果表明，其中的1.0％和37.0％分别属于等级1和2。基于情景的分析表明，在促成因素之中；地质和经济因素非常重要。而建议您不要再考虑排名靠后的两个区域。还对现有的垃圾填埋场进行了进一步的详细分析，结果表明，其中的1.0％和37.0％分别属于等级1和2。基于情景的分析表明，在促成因素之中；地质和经济因素非常重要。而建议您不要再考虑排名靠后的两个区域。还对现有的垃圾填埋场进行了进一步的详细分析，结果表明，其中的1.0％和37.0％分别属于等级1和2。基于情景的分析表明，在促成因素之中；地质和经济因素非常重要。