Regional non-hazardous landfill site selection by integrating fuzzy logic, AHP and geographic information systems |
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| Authors: | Katerina R Donevska Pece V Gorsevski Milorad Jovanovski Igor Pe?evski |
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| Institution: | 1. Faculty of Civil Engineering, University Ss Cyril and Methodius, 1000, Skopje, Macedonia
2. School of Earth, Environment and Society, Bowling Green State University, Bowling Green, OH, 43403, USA
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| Abstract: | This study presents a geographic information systems-based multi-criteria site selection of non-hazardous regional landfill in Polog Region, Macedonia. The multi-criteria decision framework integrates legal requirements and physical constraints that relate to environmental and economic concerns and builds a hierarchy model for landfill suitability. The methodology is used for preliminary assessment of the most suitable landfill sites by combining fuzzy set theory and analytic hierarchy process (AHP). The fuzzy set theory is used to standardize criteria using different fuzzy membership functions while the AHP is used to establish the relative importance of the criteria. The AHP makes pairwise comparisons of relative importance between hierarchy elements grouped by environmental and economic decision criteria. The landfill suitability is achieved by applying weighted linear combination that uses a comparison matrix to aggregate different importance scenarios associated with environmental and economic objectives. The results from the study suggested that a least suitable landfill area of 1.0% from the total is generated when environmental and economic objectives are valued equally while a most suitable landfill area of 1.8% area is generated when the economic objective is valued higher. Such results are aimed for enhancement of regional landfill site selection in the country that is compliant with modern EU standards. |
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