Uygulamalı Bilimler ve Mühendislik

Yıl 2011, Cilt: 12 Sayı: 1, 11 - 23, 17.06.2011

Aysun Özkan Müfide Banar İlgın Acar Aydın Sipahioğlu

Öz

Son yıllarda, katı atıklardan kaynaklanan çevre sorunlarının artması nedeniyle katı atığın çevresel ve ekonomik açıdan etkin bir şekilde bertaraf edilmesi zorunlu hale gelmiştir. Dolayısıyla, önemli bir karar verme problem olan katı atık yönetim sisteminin seçiminde ekonomik, sosyal, kültürel ve teknik faktörlerin birlikte ele alınması gereklidir. Bir katı atık yönetim sisteminde çeşitli kriterlerin değerlendirildiği farklı alternatifler olabilir. Bu durumda problem bir Çok Ölçütlü Karar Verme problemi haline gelir. Nitekim bu çalışmada da Eskişehir için beş farklı sistem senaryosu (MRF, geri dönüşüm, kompostlama, insinerasyon ve düzenli depolama), ELECTRE III yöntemi kullanılarak sıralanmıştır. Bir günde 750 ton atığın çıktığı Eskişehir’de atıklar halen herhangi bir sızdırmazlık ve gaz toplama sisteminin olmadığı vahşi depolama sahasında depolanmaktadır. O nedenle etkin bir atık yönetim sisteminin kurulmasına ihtiyaç vardır. Çalışmada kurulan senaryolar S3>S2>S1>S4=S5 şeklinde sıralanmış olup, karşılaştırma ve hassasiyet analizi sonuçlarına göre Eskişehir için tercih edilmesi gereken senaryo S3 (15% geri dönüşüm+77% kompostlama+ 8% düzenli depolama) olarak belirlenmiştir

Anahtar Kelimeler

Katı atık, Atık yönetimi, ELECTRE III, Çok ölçütlü karar verme

APPLICATION OF THE ELECTRE III METHOD FOR A SOLID WASTE MANAGEMENT SYSTEM

Öz

In recent years, effective disposing of solid waste environmentally and economically has become
mandatory due to the increase in environmental problems resulted by the solid waste. Furthermore,
choosing a solid waste management system appears to be an important decision making problem.
Hence, economical, social, cultural and technical factors in choosing thesolid waste management systems
should be considered together. A solid waste management system may have different alternatives to be evaluated by considering several criteria.Hence, this type of problem is considered as Multi Criteria Decision Making problem. Therefore, in this study, there were five alternative system scenarios (MRF, recycling, composting, incinerating and landfilling processes) ranked by using ELECTRE III for Eskisehir city/Turkey.Eskisehir is one of the developing cities of Turkey where approximately 750
tons/day waste is generated in total. It is required to apply an effective MSW management system since the generated MSW is dumped in an unregulated dumping site that has no liner, no biogas capture, etc. Final ranking for scenarios was in the following order: S3>S2>S1>S4=S5. According to the comparisons and the sensitivity analysis, scenario S3 (15% recycling+77% composting + 8% landfilling) for MSW management system in Eskisehir should be preferred.

Anahtar Kelimeler

Solid waste, Waste management, ELECTRE III, Multiple criteria decision making

Kaynakça

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