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        A comprehensive optimization model for integrated solid waste management system: A case study

        Koushik Paul,Subhasish Chattopadhyay,Amit Dutta,Akhouri P. Krishna,Subhabrata Ray 대한환경공학회 2019 Environmental Engineering Research Vol.24 No.2

        Solid waste management (SWM) is one of the poorly rendered services in developing countries – limited resources, increasing population, rapid urbanization and application of outdated systems leads to inefficiency. Lack of proper planning and inadequate data regarding solid waste generation and collection compound the SWM problem. Decision makers need to formulate solutions that consider multiple goals and strategies. Given the large number of available options for SWM and the inter-relationships among these options, identifying SWM strategies that satisfy economic or environmental objectives is a complex task. The paper develops a mathematical model for a municipal Integrated SWM system, taking into account waste generation rates, composition, transportation modes, processing techniques, revenues from waste processing, simulating waste management as closely as possible. The constraints include those linking waste flows and mass balance, processing plants capacity, landfill capacity, transport vehicle capacity and number of trips. The linear programming model integrating different functional elements was solved by LINGO optimization software and various possible waste management options were considered during analysis. The model thus serves as decision support tool to evaluate various waste management alternatives and obtain the least-cost combination of technologies for handling, treatment and disposal of solid waste.

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        제주도 폐기물 관리정책에 관한 동태적 분석

        강진영 ( Kang Jin Young ),최인수 ( Choi In-su ),전대욱 ( Jeon Dae Uk ) 한국시스템다이내믹스학회 2018 한국시스템다이내믹스 연구 Vol.19 No.3

        This study deals with the policy of SWM (Solid Waste Management) in Jeju, which is one of the major issues in this region as rapid urbanization and over-tourism has progressed recently. As far as the expectation is concerned that such a trend continues for a few decades, this paper aims at analyzing the consequent impacts to the SWM system and searching for an appropriate direction for the relevant policy in this area. Through elaborating and simulating a quantitative System Dynamics model, the analysis shows as follows: (1) No matter which policy is adopted, the amount of everyday waste would increase. (2) The FPD (Final Processing and Disposal) facilities, such as incinerations and landfill, would have to be increased. (3) The reduction and separation policy could be effective and should be combined with the expansion efforts of the FPD capacity.

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