The green Closed-Loop Supply Chain Network Design Considering Supply Centers Reliability Under Uncertainty

In this paper, a multi-period multi-level multi-products green closed-loop supply chain model under uncertainty is developed, which objectives are to minimize total costs, minimize emissions from vehicle displacement between levels, and maximize the reliability of delivery for suppliers. This network is including supplier centers, production/resuscitation centers, distribution/collection centers, customer centers, and disposal centers. A new Linear Integer programming model is formulated. Besides, fuzzy parameters and multi-objective function are used to approach the real world. In this regard, a deterministic two-step approach is used to consider the uncertainty in the proposed model. Finally, the performance and efficiency of the proposed model and solution methods are simulated in the numerical example and examined and suggestions are presented for using this model in the real world.