Modeling and Analysis of Organic Waste Management Systems in Centralized and Decentralized Supply Chains Using Generalized Disjunctive Programming

Maryam Mohammadi, Edgar Martín-Hernández, Mariano Martín, Iiro Harjunkoski*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Although the decentralized and centralized strategies are widely known in today's supply chain realm, few studies have investigated their impacts on the bio-based waste management context. This study aims to formulate a multi-echelon structure for evaluating the influence of these supply chain strategies on optimal utilization of the biomass feedstocks. The proposed supply chain models, connecting the economic, social, and environmental aspects, tend to lower the total system costs, reduce the inadvertent effects of transportation and production processes, and respond to dynamic demands. The optimization problem is formulated as a mixed-integer linear programming model using generalized disjunctive programming to select the most robust integrated supply chain strategy. The results indicate that, although the centralized model leads to higher investment and operating costs than the decentralized model, centralization is still a more profitable alternative as well as being capable of the production of a broader portfolio of bio-based products.

Original languageEnglish
Pages (from-to)1719-1745
Number of pages27
JournalIndustrial and Engineering Chemistry Research
Volume60
Issue number4
Early online date26 Jan 2021
DOIs
Publication statusPublished - 3 Feb 2021
MoE publication typeA1 Journal article-refereed

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