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Multicriteria decision making applied to waste recycling: comparison between THOR and THOR 2 methods
Summary
This paper compared two multi-criteria decision-making methods — THOR and THOR 2 — for evaluating waste recycling strategies in Brazil. The comparison showed some differences in the ranking of recycling options, suggesting that method choice can influence policy recommendations.
Paper aims This paper aims to compare the results of the THOR2 Method, in comparison to the original THOR method, and to analyse possible rank changes between the methods, to support decision-making in the evolutionary process of waste recycling in Brazil. Originality ; Proposes a revision of the model for analysis of Waste Recycling, highlighting the vision of three decision makers individually, and later the integrated vision. Research method State of the art of the THOR and THOR2 methods, through an investigation in four databases and comparison using THORWeb. Main findings As a result of the disposal of plastic waste, reuse, mechanical recycling, chemical and incineration remained in the positions with the consumer as a decision maker. With the other decision makers there was only one significant change, where the landfill went from last to first position. Implications for theory and practice There was only one significant change when comparing methods.