The recycling problem for electronic products under a closed-loop supply chain environment is addressed in this paper. The cycling efficiency is analyzed by using material flow analysis ( MFA). Then, a mathematical model is developed to optimize the recycling efficiency for such a supply chain. By this model, the circulation index and path length are measured by the amount of the substance at each node in the system, which reflects the material utilization and recycling efficiency of the whole system. Thus, it reveals how one can increase the resource recycling efficiency. It shows that the circulation index can be improved by green manufacturing and green design. This is a significant finding in this field. Finally, the model is tested and analyzed through an e-waste recycling numerical example.%在物质流方法的基础上,结合所建立的电子产品闭环供应链系统,构建了资源循环效率优化模型,通过系统中各节点的物质量来计算循环指数和路径长度两项指标,从而反映闭环供应链系统的物质利用水平和循环效率,并揭示系统循环效率优化的路径.研究结果表明,绿色生产和绿色设计是提高资源循环指数的有效途径,这对于提升整个供应链系统的物质循环效率具有重要意义.最后结合电子废弃物回收的实例对模型进行应用和分析.
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