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A novel hybrid network optimization model for printed circuit boards recycling: a circular economy perspective

机译：A novel hybrid network optimization model for printed circuit boards recycling: a circular economy perspective

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摘要

The recycling of printed circuit boards, which accounts for a considerable monetary value in waste electrical and electronic equipment, has long been ignored due to the serious challenges in collection, dismantling, and recycling processes. In this study, the open-loop and closed-loop supply chain involving circular economy objectives is designed in order to increase the recyclability of valuable metals including gold, silver, copper, and palladium. In this regard, a mixed-integer linear programming model, which aims at maximizing the profit from the flow in the supply chain network, is developed. The model is tested with actual data obtained from a printed circuit board firm in Turkey that aims an optimal distribution in its supply chain. The results reveal that the product/material flows, which have an impact on the revenues, are among the most important factors affecting the profitability. According to results, the circular economy objectives increase the revenue obtained in the hybrid open-loop and closed-loop supply chain. Besides, the boundaries of the proposed model are tested with sensitivity analyses, and the results are discussed extensively with conclusions on managerial implications.

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