The Study On Multi-product CLSC Based On The Manufacturer’s Responsibility For Recycling

With the promotion of global sustainable development strategy, the boost of environmental awareness, more and more countries and companies start to focus on the recycling and remanufacturing of waste products (or End Of Life), China is no exception. In china, we are very happy to see that more and more companies see it as their duty. Against this background, the combination of supply chain and reverse supply chain-Closed Loop Supply Chains (CLSC) comes.As we all know, a reasonable Closed Loop Supply Chain Network (CLSCN) not only can contribute to the implementation of the sustainable development strategy, but also can increase enterprise’s revenue, enhance their core competitiveness. However, the CLSCN is vulnerable to some uncertain external factors. Based on the model of manufacturer’s responsibility to recycle and remanufacture waste products, taking into account some uncertain factors under environmental impact, and using robust optimization methods, we modeled the study of such closed-loop supply chain network.Based on the existing relevant research, a multi-product closed-loop supply chain network is established with considering some uncertainties, such as market demand, remanufacturing costs, the rate of recovery of waste products and the rate of sorting. First of all, we set the minimized cost as the goal of our model. Those cost included construction costs, transportation costs, the production costs of new and old products, recycling costs, sorting cost in recycling center and so on. Secondly, to establish a multi-product closed-loop supply chain network model, we built some equations to restrain the activities. Finally, we can determine the new facility construction scheme, each node product distribution plan, and ultimately build an actual situation in the region suitable for closed-loop supply chain network from our model.Finally, a numerical example has built to verify what I studied. The results show that the most sensitive factor is market demand, followed by recycling remanufacturing cost.