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1794. Mixed sustainable supply chain design: a case of the recovery of end-of-life tires and batteries

Invited abstract in session TC-23: Optimization for the Circular Economy, stream Circular Economy, Remanufacturing and Recycling .

Tuesday, 12:30-14:00
Room: 82 (building: 116)

Authors (first author is the speaker)

1. Andrea Espinoza
Universidad de Santiago de Chile
2. Jeremías Vásquez
Universidad de Santiago de Chile
3. Pavlo Santander
Universidad de Santiago de Chile

Abstract

The increasing amount of waste generated, combined with a lack of proper management, has resulted in the development of policies to encourage the recycling of end-of-life (EOL) products. Extended producer responsibility (EPR) has been one of the most common regulations, holding producers accountable for the management of the products they manufacture. End-of-life tires (ELTs) and batteries are two of the most common EOL products covered by EPR laws. Different supply chain designs have been proposed in the literature to address the treatment of both products, but they address them separately.
The study presents a multi-objective optimization model for the development of an integrated supply chain considering three different objective functions to assess economic, environmental, and social perspectives. The proposed model is applied to a case study in Chile's Metropolitan Region. The e-constraint methodology yields a Pareto front used to calculate a compromise solution. The supply chain exhibits a unique distribution compared to previous mono-objective iterations, featuring a mix of different technologies installed at both the centers and reprocessing plants. The system processes 33.17% of the total available EOL products. This total fulfills the minimum requirements established by the EPR law in Chile of 3% for batteries and 25% for ELTs.

Keywords

Status: accepted

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