A solid waste disposal site selection procedure based on groundwater vulnerability mapping |
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Authors: | Celalettin Simsek Cem Kincal Orhan Gunduz |
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Institution: | (1) Department of Drilling, Torbali Technical Vocational School of Higher Education, Dokuz Eylul University, 35860 Izmir, Turkey;(2) Department of Geological Engineering, Dokuz Eylul University, 35100 Izmir, Turkey;(3) Department of Environmental Engineering, Dokuz Eylul University, 35160 Izmir, Turkey |
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Abstract: | In this study, a new, GIS-based solid waste site selection tool (DUPIT) is introduced to obtain a systematic and unbiased
methodology during the evaluation phases of alternative solid waste disposal areas with regards to vulnerability to groundwater
pollution. The proposed tool is an index technique based on the linear combination of five different hydrogeological parameters
including Depth to groundwater table, Upper layer lithology, Permeability of the unsaturated zone, Impermeable layer thickness and Topographic slope. Five different categories are developed to classify each alternative based on the suitability of the site
for a solid waste disposal area. As a result, each site is ranked according to the contamination risks for groundwater resources.
The proposed technique is applied to the District of Torbali near Izmir, Turkey to determine the most appropriate solid waste
disposal site location. The Torbali application is implemented by using a GIS database developed for the area. Based on the
results of this application, the best alternative solid waste disposal site for Torbali is selected to be located in the northern
portions of the city where the groundwater table is deep, the permeability is low and the topographic slope is mild. |
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Keywords: | Environmental hydrogeology Site selection GIS Solid waste Torbali (Turkey) |
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