Abstract:
Solid waste disposal is a hectic problem in urban and developing areas. Solid
waste disposal is increasing due to the high needs and usage of things by the
increasing population. In the contemporary world, the developing countries like Sri
Lanka are facing big issues regarding the solid waste management. Most of the Local
Authorities in Sri Lanka is facing a lot of problem of finding Socially, Economically, and
Environmentally suitable place for waste disposal. Identifying a suitable place in
Vadamaradchy South West Divisional Sectaries for waste disposal important as there
are many Ecological sensitive locations such as low land areas, Wetland, fresh water
resources and religious place. Because of these things, identification of suitable solid
waste disposal places in this area is significantly important. The objective of this study
was to identify socially economically and environmentally potential areas of prefer solid
waste disposal in vadamaradchy south west Divisional secretariat. The site selection
criteria which used for this study includes surface water, Soil texture, Soil Drainage,
Road Network, Flood, Population density, school, Hospital, Religious Place and Other
important public places which are considered as input layers are created by using
weighted overlay to identify the most suitable, moderate suitable, less suitable and
unsuitable areas. 12.93 hectare of “A” division was selected for suitable place of solid
waste disposal. This research is confirmed that the new technology GIS & MCDA have
powerful tools which can effectively be applied during the planning phase of solid
waste management, the ability to identify the most suitable areas for waste disposal
through the capacity to store, manipulate, analysis, query, interpret and visualize
spatial and non-spatial data in many ways which helped to reduce the costly and time
consuming.