Hazardous Wastes Landfill Site Selection Using Analytical Hierarchy Process (AHP) in Zanjan Province

Recently، hazardous waste management is a major issue through the world due to increasing of hazardous wastes in countries. According to numerous industrial units، Zanjan province needs an effective managing method for hazardous wastes. Landfilling is the most common method used to hazardous waste management. Determining of optimum location with considering minimum environmental risks and cost effective methods are the scope of this paper. The used method in this paper is combination of geographic Information System (GIS) and multiple criteria Analysis (MCA). Because of several influencing parameters in landfill site selection، using MCA is necessary. A two steps method of landfill site was done، including elimination exclusionary areas and calculation suitability index. In order to determine weights of effective parameters، Analytical Hierarchy Process (AHP) was applied. Simple additive weight method was used for determination of suitability index and evaluation of study area for hazardous waste landfill. Finally regions with high suitability index were suggested for hazardous waste landfills in Zanjan province.