Site Selection for Solid Waste (New landfill) using GIS-based Multi-Criteria Decision Analysis (MCDA) Khartoum state, Sudan

Abstract

Solid waste management is becoming a serious problem, especially in developing countries. It has become a growing problem in Khartoum city because it is randomly disposed of and is the main source of environmental pollution coupled with traditional management practices such as burning and uncovered dunghills. This study aims to use suitable sites for solid Waste Collection in Khartoum State using the integration of multi-criteria for decision analysis (MCDA) in Geographic Information System (GIS) in addition to building geographic data base for waste management for future monitoring program. Multi criteria are used including the distance from settlements, rural and industrial areas, distance from roads, railway, drainage, land slope, and land uses. The distances from these features was ranked and weighted. By superimposing these weights, the Model Builder has been built, deriving a map representing the most suitable locations for landfill in Khartoum. The results indicate that the most suitable sites will cause minimum impacts to the environment, society and economy as well as conforming with the regulations and generally accepted by the public.