Locating Urban landfills using GIS and AHP (Case Study: Asaluyeh Coastal-Industrial City)

Population growth in urban areas, followed by increased waste generation and environmental issues, has increased the need to pay attention to determining the proper landfills of urban waste. Accordingly, the purpose of this research is to locate suitable landfills of the city of Asaluyeh. In this study, a total of 16 criteria were used in three physico-chemical, socio-economic and biological environments. In order to locate landfill site in Asaluyeh, ArcGIS10.3 software was used to extract the information layers and perform the necessary processing and Analytical Hierarchy Analytic Model (AHP) to weigh the criteria using Expert Choice software. Based on the findings of this study, the landfills in the study area can be classified into four classes. At the same time, the perfectly suitable areas for dumping landfills with 3232.74 hectares have the highest priority for landfill dumping, and with 4.82% of the total area covered by the study, priority is given to waste landfill projects. Analysis of the results of the research findings shows that the designated areas for proper disposal of Asaluyeh waste are more in line with the poor and poor pasture land and the maximum distance from residential areas, communication routes, resources Underground water, drains, industrial areas and protection areas and faults in the area.