Abstract
Industrial symbiotic approach has been applied for integrative urban waste management policies in Kawasaki Eco-town, which is recognized as one of the most innovative practices in Japan. Technology inventory data were surveyed and quantitatively identified through company survey for recycle oriented cement company, waste plastic utilization in blast furnace fac tory, and stainless plant in the coastal area of Kawasaki Eco-town. Four scenario cases are designed to implement industrial symbiosis effects in Kawasaki environmental policy, where case 1 defines the current circulation system which adopt solid wastes from fifer places, case 2 defines the regional circulation collaboration among local industries, and case 3 provides the effects for integrative waste management among urban households and industrial plants, while case 0 identifies the non drulation situations. The results show that as much as 230 thousand reduction in CO2 tons a re expected in the most symbiotic approach.