We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Reduction of cost and emissions by using recycling and waste management system
Summary
An optimization model for integrated waste management systems was developed with dual objectives of minimizing cost and greenhouse gas emissions, demonstrating that simultaneous economic and environmental goals can be achieved through system-level design. The model provides a tool for sustainable waste management planning.
In order to evaluate the level of sustainability of an integrated waste management system (IWMS), it is necessary to analyze the impact criteria. Therefore, the purpose of this study is to provide a model for IWMS optimization with the two goals of minimizing the cost and the emission of greenhouse gases of the entire system. Environmental and health problems caused by the lack of proper waste management include the increase in disease, increase in stray animals, pollution of air, water, land, etc. Therefore, it is very important to identify the indicators and improve the efficiency of the waste management system. In the present research, with descriptive-analytical approach, it has been tried to clarify and evaluate the effective indicators in two dimensions of production-segregation and collection-transportation, and find ways to improve the efficiency of the system. In this article, five waste management systems including, incineration, landfill without gas extraction system, plasma incineration, recycling and aerobic decomposition are introduced and their performance in energy production and emission reduction are compared. The results of the evaluation of the basic waste management system (b) show that the amount of pollution is equivalent to 850 kg CO2 per ton of waste. While the amount of emission in the fifth comprehensive management system is reduced to 450 kg CO2 per ton of waste. According to the results obtained in this study, in all the management systems presented, the process of burying waste in sanitary landfills has the greatest effect in increasing pollution. This means that the pollution caused by burying the waste in the sanitary landfill will be reduced with the construction of the gas extraction system and the plasma method and use in electricity production. Despite the increase in initial costs, using the right technology and using the right waste system based on the type of waste and waste recycling has an effect on the efficiency of the system.
Sign in to start a discussion.
More Papers Like This
A Multi-Objective Optimization Model for Multi-Facility Decisions of Infectious Waste Transshipment and Disposal
Researchers developed a multi-objective optimization model for infectious waste disposal balancing economic, social, and environmental concerns using consolidation facilities.
Mitigating greenhouse gases emissions in processing fossil carbon containing industrial waste
Researchers assessed best available techniques (BAT) for reducing greenhouse gas emissions from waste treatment of fossil carbon-containing materials including oil, plastic, and rubber. The analysis found that recycling is the primary recommended method, and that effective GHG mitigation policy requires integrating waste management with full product life-cycle optimization.
Optimizing plastics recycling networks
Researchers developed mathematical optimization models — including linear programming tools — to help plan efficient plastic recycling networks that can tolerate some contamination from mixed plastic waste streams. These models could help overcome a key barrier to large-scale recycling by intelligently matching waste sources with the plants best equipped to handle them.
Development of a Decision Support System Prototype for Time and Cost Reduction in Collecting Recyclable Waste
This study developed a decision support system to optimize routing for waste pickers collecting recyclable materials, reducing collection time and cost. Improving recyclable waste collection efficiency is important for diverting plastic waste from the environment where it would fragment into microplastics.
Optimization of Renewable Energy Supply Chain for Sustainable Hydrogen Energy Production from Plastic Waste
Researchers developed an optimization model for producing hydrogen energy from plastic waste in Iran using a renewable energy supply chain approach. They found that converting plastic waste into hydrogen fuel through gasification is economically feasible, with costs potentially decreasing over time as the system scales. The study presents a strategy for simultaneously reducing plastic waste volume and generating clean energy.