Sustainable solid waste management system using multi-objective decision-making model: a method for maximizing social acceptance in Hoi An city, Vietnam

Giang Minh Hoang, Takeshi Fujiwara, Toan Song Pham Phu, Luong Duc Nguyen

    Research output: Contribution to journalArticlepeer-review

    28 Citations (Scopus)

    Abstract

    The main aim of this study was to develop a decision support system for sustainable municipal solid waste management (MSWM) in Hoi An city (HAC), Vietnam. A face-to-face interview was conducted with local experts including authorities, citizens, waste collection contractors and recyclers to identify main objectives of waste management system and appropriate treatment methods. A multi-objective optimization model was proposed using non-linear programming approach. An interactive method known as reference point method (RPM) was applied for solving the problem with three objectives including cost minimization, landfill minimization and emission minimization. As a result, the efficient waste-flow-allocation and the optimal capacity of disposal facilities were determined by intense discussion and agreement among decision-makers. Waste incineration, anaerobic digestion, sanitary landfill and current recycling activities should be applied with a cost of about 2300 US$ daily. Also, the daily emission of various pollutants was about 35 metric tons, and the greenhouse gas (GHG) is 313 tons CO2-eq.

    Original languageEnglish
    Pages (from-to)34137-34147
    Number of pages11
    JournalEnvironmental Science and Pollution Research
    Volume26
    Issue number33
    DOIs
    Publication statusPublished - Nov 1 2019

    Keywords

    • Decision support system
    • Multi-objective decision-making method
    • Optimization model
    • Social acceptance
    • Sustainable waste management

    ASJC Scopus subject areas

    • Environmental Chemistry
    • Pollution
    • Health, Toxicology and Mutagenesis

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