Study on secondary copper resource recycling and reuse by Waste Input-Output Model

Taiwan is characterized by high consumption of copper metal, which requires the import of expensive copper annually to meet the needs of the domestic industries. The industries, government agencies and academia are embarking to establish the secondary copper resource recycling system to reduce the rely of import copper resources. The objective of this study is to construct a secondary copper waste input-output model and further to establish a secondary copper waste input-output price model to estimate the unit process cost of individual industries. The waste input-output (WIO) analysis provides an extended function to consider the entire life cycle of a product. This article illuminates the diagnostic features of the secondary copper waste input-output model and provides useful insights for linking the WIO and supply chain analysis approaching sustainable consumption and production.