Landfill Site Selection for Urban Hysteresis of Qazvin City using the AHP in ArcGIS Software

The daily increase in populationand urban development, increasing consumption of undegradable materials and many other of mechanical and modern life aspects have caused to managers pay more attention to the issue of wastes. According to the environmental, economic and ecological impacts, choosing landfill must be done carefully and during a scientific process. This study was aimed to suggest the best places for municipal urban solid waste disposal in Qazvin.
This investigation is an applied research using descriptive-analytical methods and was aimed to determine appropriate location for waste landfilling of Qazvin city. For this purpose, the Analytic Hierarchy Process (AHP) and ArcGIS 10.3 software was used. Accordingly and given the required parameters for choosing the optimal site that have an important role in site selection such as Soil, Geology, Rivers, Roads, Cities and Villages points, Climatology, Roads etc., the AHP model was performed and the target areas were identified for landfill in Qazvin city.
According to the maps and layers created, Potential areas for wastes disposal have been identified in 5 classes and were chosen Lands with an area of above 70 hectares from lands in fifth grade and for the best place to landfill in the range of 40 years old.
Based on the results, the suitable area for landfill was diagnosed in central and northern parts of the Qazvin city cause of low permeability soil, suitable land use, suitable distance and good buffer from rivers, the distance from faults, cities and village, proximity to road access and communication and dry climate.