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Fuzzy multicriteria disposal method and site selection for municipal solid waste
Mehmet Ekmekçioğlu1, Tolga Kaya, Cengiz Kahraman
1Istanbul Technical University, Department of Management Engineering, 34367 Macka, Istanbul, Turkey. meceng3584@yahoo.com
Waste Management (New York, N.Y.)
|March 23, 2010
Summary
This study introduces a fuzzy TOPSIS method for selecting municipal solid waste (MSW) disposal methods and sites. Refuse-derived fuel (RDF) combustion is identified as the optimal disposal method for Istanbul, with a specific site recommended.
Area of Science:
- Environmental Science
- Operations Research
- Decision Science
Background:
- Solid waste management requires objective decision-making for disposal methods and sites.
- Existing methods struggle with subjective and qualitative data in waste management.
Purpose of the Study:
- To propose a modified fuzzy TOPSIS methodology for selecting optimal municipal solid waste (MSW) disposal methods and plant locations.
- To enhance decision-making by accommodating both quantitative and qualitative data in waste management.
Main Methods:
- A modified fuzzy TOPSIS approach combined with Analytic Hierarchy Process (AHP) for criteria weighting.
- Application in two stages: first, selecting the best MSW disposal method; second, optimizing the plant location.
- Utilized criteria include cost, reliability, feasibility, pollution, waste/energy recovery, land use, climate, and road access.
Main Results:
- Refuse-derived fuel (RDF) combustion was identified as the optimal MSW disposal method for Istanbul.
- The optimal location for an RDF combustion plant was determined to be in Catalca, considering various site-specific criteria.
- Sensitivity analysis confirmed the model's responsiveness to changes in criteria weights.
Conclusions:
- The proposed fuzzy TOPSIS methodology effectively handles subjective data for improved solid waste management decisions.
- The study provides a robust framework for selecting both disposal technologies and specific sites for MSW management.
- Optimized waste management strategies are crucial for environmental sustainability and resource recovery.
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