Abstract
Supply chain sustainability as a new and very effective approach has recently attracted the attention of researchers in the field of supply chain management. Also, a circular economy helps to reduce the waste materials and products in a supply chain. In order to include circular economy in supply chain network design, it is necessary to use the concept of closed-loop network design. Therefore, designing a sustainable closed-loop supply chain network that works well even by changing some parameters seems to be necessary. This paper presents a multiproduct, sustainable closed-loop supply chain network under uncertainty. First, a mathematical model is proposed to design a closed-loop network, and then a set of possible scenarios is used to deal with the uncertainty of the parameters. In order to show the validity and applicability of the proposed model, numerical examples are presented and analyzed. In this regard, numerical results show the appropriate performance of the proposed model. Finally, sensitivity analysis is performed to assess the role of customer demand in different aspects of sustainability. It is revealed that increasing customer demand will have a strong impact on economic and environmental objectives.
Highlights
Chain sustainability as a new and very effective approach has recently attracted the attention of researchers in the field of supply chain management
Validation of the Mathematical Model. e validity of the proposed multiobjective model developed in this study is evaluated using the GAMS software and a randomly generated test problem. e simulated data are used to create a numerical example, which is subsequently incorporated into the mathematical model. e following is the data in this numerical example
E goal is to produce and supply one specific product. ere is only one production unit to produce this product. e repair rate in the repair centers is equal to 40%, the disposal rate in the disposal centers is equal to 30%, the recycling rate in the recycling centers is equal to 20%, and the reproduction rate in the production center is equal to 10%
Summary
More attention has recently been paid to the environmental impact of the supply chain, limited research has considered the concept of a circular supply chain. In the field of closed-loop supply chain network design, Devika et al [14] proposed a mixed-integer linear programming model for the closed-loop supply chain network design To solve this NP-hard problem, they used imperialist competitive algorithms (ICA) and variable neighborhood search (VNS). Gonela et al [22] proposed a linear programming model of different uncertain types for the design of bioethanol production supply chains based on industrial coexistence. In their model, the total profit is maximized due to the total emission limit of greenhouse gases and other reasonable limits. (iii) Analyzing the effect of circular economy in achieving the optimal solution of the supply chain
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
