Nowadays, our city expands at a rate ranging from5%to10%per annual.In order to adjust the industrial structure, many factories including somechemical industries are forced to move to the suburb from the downtownleaving seriously contaminated sites. While for the pursuit of short-termbenefits, some authorities auctions these contaminated sites withoutremediation them first, which endanger the health of public andenvironment. Contrary to the rapid city expansion, the development ofremediation system of the co...