Modeling System Dynamics Reverse Logistics of Polyethylene Terephthalate (PET): Equilibrium Approach

DOI

10.2991/978-2-38476-410-5_13How to use a DOI?

Keywords

system dynamics; reverse logistics; polyethylene terephthalate; equilibrium approach

Abstract

The incessant beverage industry, which uses a lot of PET plastic as single-use packaging, dramatically contributes to the problem of plastic waste in the world and Indonesia. On the other hand, PET is a material with high economic value because it is easily recycled many times. So, post-consumption PET recycling has the potential to create a circular economy. In a circular economy, reverse logistics is crucial because it enables waste reuse and reduces resource wastage and environmental pollution. In reverse logistics (RL), the quantity of PET waste collected can change linearly or non-linearly over time. These changes affect material flow in remanufacturing recycling systems, affecting rPET material flow to manufacturers in closed supply chain systems (CLSCs). This study proposes a dynamic approach to analyzing reverse logistics equilibrium in CLSC that considers parameter dynamics and product flow. In the PET supply chain equilibrium model, the supply chain is viewed as a system of interconnected entities, namely the manufacturer (M), Distributor (D), the consumer (C), collector (C_o), remanufacture (R), and other stakeholders (regulators, R) who interact with each other through the exchange of goods, services, and resources. To evaluate the performance of the reverse logistics PET system, three scenarios were given: uncontrolled scenario, scenario on government policy control to Manufacturing (u₁), and scenario on government policy control to consumers (u₂). The simulation results show that system performance becomes better for the sustainability of the circular economy when given control over the consumer because consumers are the largest entities in this system. This developed model contributes to helping understand the performance of CLSC systems in various situations and make informed decisions to maintain system balance.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Yuniar Farida
AU  - Fadilah Akbar
AU  - Ahmad Naufal Dzaky Syukron
PY  - 2025
DA  - 2025/07/28
TI  - Modeling System Dynamics Reverse Logistics of Polyethylene Terephthalate (PET): Equilibrium Approach
BT  - Proceedings of the 2nd International Conference on Sciences, Mathematics, and Education 2023 (ICOSMED 2023)
PB  - Atlantis Press
SP  - 136
EP  - 150
SN  - 2352-5398
UR  - https://doi.org/10.2991/978-2-38476-410-5_13
DO  - 10.2991/978-2-38476-410-5_13
ID  - Farida2025
ER  -