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

Abstract

Solid waste management (SWM) is one of the poorly rendered services in developing countrieslimited resources, increasing population, rapid urbanization and application of outdated systems leads to inefficiency.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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“…In the model, community compost plants, mechanical aerobic compost plants and sanitary landfills were considered as waste processing or disposal options. Paul et al 11 had developed a mathematical model for a municipal integrated SWM system. Their model 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.…”

Cost minimization and operation optimization model for strategic waste management decision plans: A case study

“…The unit cost of waste generation, collection, transportation, recycling, recovery, and final recovery and disposal, which are key elements of a municipal solid waste system, influences the overall cost efficiency of the system influence the overall cost efficiency of the system. Hence, the cost calculation of variables must be encompassing to enhance the implementation of MSW management schemes (Paul et al, 2019).…”

“…They opined that increased cost commitment to environmental awareness, public concerns, and appropriate legislation for sustainable management will influence the economy and efficiency of MSW systems. A bi-objective minimization cost model with emission control and recyclable potential as dependent variables was deployed on two big cities of Ankara, Turkey and Kolkata city, India, (Mohsenizadeh et al, 2020;Paul et al, 2019).…”

“…Cost minimization models tend to provide a guide to systemic adoption of municipal solid waste management systems featuring the lowest cost, barest minimum options for technologies and aided legislations which drive the social and environmental sustainability components (Paul et al, 2019). In most developing countries like Nigeria, poor MSW data management had hindered the use of cost minimization models to improve MSW plans.…”

Mathematical Model for Optimizing Green Waste Recycling Networks Considering Outsourcing

“…Municipal solid waste (MSW) is waste material in urban areas that mainly consists of household waste and can also include commercial waste, organization waste, and municipal service waste collected and disposed of by municipalities. , MSW production has doubled globally in the last decade and is expected to triple in the next decade . In 2012, about 3 billion citizens worldwide produced 1.3 billion tons of waste, and by 2025, the population will reach 4.3 billion, which is predicted to generate around 2.2 billion tons of waste. , With the rapid growth of urbanization and population over the past decades, the social and environmental impacts of MSW have increased . Landfill without primary treatment and energy recycling is the method used by most Asian developing cities to deal with the waste.…”