Research on optimal model and algorithm for recycling logistics network planning of renewable resources
再生资源回收物流网络优化模型与算法研究

Recycling of renewable resources is an integral part of the recycling economy. Research on the network planning of renewable resources recycling logistics is the prerequisite and foundation of recycling of renewable resources system. Given the amount of renewable resources and demand volatility, taking the minimal total logistics costs as optimal objective, this paper built the four-level, multi-species single-cycle model of network planning of renewable resources which included recycling point, recycling centers, processing centers and deep-processing markets or customer enterprises. Based on optimization stra-tegies of recycling centers' main processing power and mapping relationship, it designed a two-stage heuristic algorithm to solve the model. The example shows the proposed model and algorithm can develop an effective recycling logistics network planning of renewable resources. It can also be used to solve the optimal problems of single-species single-cycle, single-species multi-cycle, multi-species multi-cycle renewable resource recycling logistics network.