Research on Symbiotic Order of the Eco-Industrial Chain for Recycling Waste Materials Based on Input-Output Method

The eco-industrial chain as an input and output of the ecosystem includes the economic and ecological inputs and outputs. The production processes between node enterprises stabilize the input-output structure of the eco-industrial chain through the linkage of material flow and energy flow. The analysis framework of input-output has built based on material flow. When the demand for the product changed, a new input-output matrix could be established. And then according to this matrix, relationships of material flow between node enterprises could be adjusted to realize the symbiotic order of the eco-industrial chain.