End-of-Life Tyres Recovery Method Selection by Using a Two Step Methodology
Yesim Kop, Mujde Erol Genevois and H. Ziya Ulukan
This study focuses on “Tyres and Tyre related wastes”. End of Life Tyres (ELT) are detected according to waste and waste disposal regulations. Many studies have been conducted in different countries in order to determine the most suitable ELT recovery method. The aim of this study is to make an ELT disposal method selection, considering current conditions. It proposes a two-step methodology. Considering the lack of quantitative data and the presence of qualitative perspectives, the selection has been made using a Multi Criteria Decision Making (MCDM) tool named Analytic Hierarchy Process (AHP). To handle the imprecise nature of the expert judgments, the study proceeds by using the fuzzy extended AHP. The second step consists of making a distinction between some alternatives determined by experts.These alternatives are evaluated according to quantitative and qualitative data through fuzzy goal programming method in order to find out the percentages of ELT that must be used for each of them.
Keywords: ELT, Mechanical Pulverization, Waste to Energy Process, Pyrolysis, Fuzzy Triangular Numbers, Fuzzy Extended AHP, Fuzzy Goal Programming.