JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, cilt.23, sa.4, ss.915-927, 2020 (ESCI)
A sustainable waste management approach should be able to serve all economic, social and environmental aspects. In this study, direct recycling, pyrolysis and alternative fuel usage alternatives were evaluated in the management of waste tires. The most suitable of these alternative methods for Turkey was determined using PROMETHEE (preference ranking organization method for enrichment evaluations), and fuzzy PROMETHEE, multi-criteria decision processes. To determine the most appropriate alternative, 4 decision makers were asked to evaluate alternatives in terms of environmental impact, operating risk, installation cost, operating cost, generated product diversity and applicability in Turkey. These evaluation criteria of decision makers were expressed with 5 point decision scale and fuzzy numbers and analyzed with Visual PROMETHEE software. According to the results, when the PROMETHEE I and II analysis of PROMETHEE and fuzzy PROMETHEE approaches were taken into consideration, the same order of alternatives was found as recycling> use as alternative fuel> pyrolysis. However, the PROMETHEE Rainbow analysis of the two approaches showed differences in positive and negative criteria affecting alternatives. GAIA visual analysis and GAIA web analysis were performed in addition to the above analyzes since linguistic expressions were thought to be expressed more sensitive with fuzzy PROMETHEE. It has been determined from GAIA visual analysis, (i) recycling alternative would be appropriate in terms of environmental impacts, operating risk, applicability in Turkey, and operating cost (ii) pyrolysis alternative would be appropriate in terms of the product diversity (iii) use as alternative fuel alternative would be appropriate in terms of installation cost. As a result, it is determined that the most suitable alternative is the recycling alternative and only the installation cost criterion has a negative effect on the preferability of this alternative.