Locating the landfill in Sahneh county using GIS

With increasing population growth and increasing waste production, the need to determine the appropriate landfill for waste has increased. Therefore, the need for planning to determine the appropriate location for sanitary landfill is very important and menstrual. The use of Geographic Information System (GIS) tools and Analytic Hierarchy Process (AHP) are one of the most effective tools for selecting landfills. The purpose of this study is to locate the suitable landfill for Sahneh County. In this research, slope, distance from river, land use, distance from road, distance from fault have been used to determine the landfill. In order to locating the landfill GIS for extraction and necessary processing and from hierarchical analysis (AHP) used to measure criteria. The final weight in Analytic Hierarchy Process is given the highest score to the distance of the roads and the lowest score to the distance from the river. Based on the findings of this study, landfills in the study area can be classified into five categories. Very suitable areas for landfilling are> 20% slope, distance from roads 10000-20000 meters, distance River <6000 m, distance from fault <7000 m, land use of rocky outcrops with an area of 8139.79 hectares and 59.5% have a higher priority for landfilling in compliance with health and environmental standards and laws. Also, the analysis of the results of this study shows that areas designated for suitable landfill have highly desirable.