Abstract
Serving as a promising solution to manage municipal solid waste (MSW), the waste-to-energy (WTE) system has recently received increasing attention. The first and critical step of constructing a WTE system is selecting a sustainable plant site. To support the site selection of the WTE system, this paper proposes a novel interval type-2 fuzzy decision-making framework. First, a sustainable evaluation index system is established by considering multiple criteria from several dimensions. Second, to deal with the heterogeneous information formats under different criteria, two information transformation mechanisms are developed. Through the proposed information transformation mechanisms, the heterogeneous information formats are unified into interval type-2 fuzzy sets. Then, a new interval type-2 fuzzy distance model is proposed to enhance Besson’s mean ranks in ORESTE method. Based on the proposed distance model, an interval type-2 fuzzy ORESTE method is developed to analyze the conflicts between the alternative sites and select the most desirable one. Finally, an example about the site selection of the WTE system is provided to illustrate the implementation process of our proposal, meanwhile, the comparative analysis and discussions are conducted to verify its superiority and flexibility.
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