Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/10790
Title: Modelling of WEEE recycling operation planning under uncertainty
Authors: Polat, Olcay
Polat, Olcay
Capraz, O.
Capraz, O.
Gungor, A.
Gungor, A.
Keywords: Fuzzy optimization
Operation planning
Recycling
WEEE
Decision making
Electronic equipment
Fuzzy sets
Hazardous materials
Hazards
Linear programming
Oscillators (electronic)
Sustainable development
Uncertainty analysis
Economic sustainability
Experimental analysis
Linear programming models
Operation and management
Waste electrical and electronic equipment
Electronic Waste
Publisher: Elsevier Ltd
Abstract: Recycling is very important especially for hazardous materials considering their negative impacts on the environment. Waste electrical and electronic equipment (WEEE) is generally classified under hazardous waste. Determination of process methods and quantities of WEEE to be processed is significantly important since it enables the efficient operation and management of recycling systems. The presence of uncertainty in these systems requires to develop appropriate decision-making tools to deal with uncertain parameters in recycling-operation planning problems. In this study, we propose a linear programming (LP) model for multi-period operation planning for recycling of WEEE considering fuzzy parameters: demand, quantity of WEEE to be processed, operational capacity of resources, amount of output obtained from WEEE and processing times. The model aims to maximize the total profit by determining the best recycling strategies and types, quantity and stocks of WEEE to be recycled during the planning term. The solution method is based on ranking methods of fuzzy numbers through the comparison of their expected intervals. The proposed LP model is illustrated using a case study with experimental analysis. The findings indicated that the nature of fuzzy parameters have critical effect on the total cost and the total revenue at different levels. The results also show that the uncertainty in recycling of WEEE is a crucial factor in developing consistent plans to achieve the economic sustainability of recycling facilities. © 2018 Elsevier Ltd
URI: https://hdl.handle.net/11499/10790
https://doi.org/10.1016/j.jclepro.2018.01.187
ISSN: 0959-6526
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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