Study on Theoretical Connotation and System Model of Resources Recycling

The resource recycling is the core content of the circular economy.Its industry is an important part of the strategy emerging industry about energy saving and environmental protection,an effective way to crack resources and environmental constraints faced by China's economic development;and the industry is of great significance for reducing the environmental load,increasing the supply of resources.Beginning from the connotation of resource recycling,this paper analyzes their concept and content of reuse,remanufacturing and recycling;clarifies links and differences between the resource recycling and comprehensive utilization of resources;addresses objects and modes of resource recycling;gives priorities of reuse,remanufacturing and recycling;establishes system model of resource recycling,which gives the coupling relationship between different industries and utilization way;and describes the material existing forms in various stages of the life cycle,and brings forward symbiosis network form and means of waste exchange between the different enterprises.The achievements of this paper can provide theoretical support for planning,management,statistics of the resources recycling industry.