GIS based multi-criterial evaluation of Suitable Solid Waste Disposal Site Selection, the case of Hosanna town, Hadiya zone, Ethiopia

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Addis Ababa University


Solid waste management system is the most difficult task that many countries, both developing and developed, are facing. Landfill method is one of the easy and cheap management systems which are always needed for sustainable management of solid waste. The main objective of the study was to select landfill site for the town that is environmentally sound, socially acceptable and economically feasible in Hosanna town. To achieve the objectives, the present study was conducted by integrating Geographic Information System (GIS) and remote sensing for selecting suitable solid waste disposal sites. All the factors were represented with map outputs which were reclassified and standardized in GIS environment followed by preparation of their suitability map. Analytical Hierarchy Processes pair-wise comparison module was used to derive weights for all factor parameters. Accordingly, 89% of the study area is unsuitable, 1.6% of the total study area is less suitable, 2.9% is moderately suitable and 6.5% is highly suitable for landfill based on predefined criteria (based on their area, distance from the center and nearby settlements due to their minimum environmental and social negative effects). The final output of the study shows that 4 selected landfill sites in relation to those evaluating criteria. Therefore, landfill sites 4 which are chosen as highly suitable sites arranged based on their area size from large to small area size,site1(97.1ha), landfill site,2(45.7ha), landfill site,3(29.2)and landfill site4(23.1ha). In general, landfill site selection has been required appropriate data set, consideration of responsible persons and other concerned bodies



Geography and Environmental Studies