Project Overview: This project is to renovate the water systems of Xiangcheng District, Longwen District, and High-tech Zone, mainly including the nine river basin water systems of Sanxiang River Basin and Zhuli River Basin, as well as various lake bodies and ponds. The total length of river remediation is 445 Km; to treat domestic sewage in the 6 villages in the area, using the process of “artificial grille + conditioning tank + anaerobic anoxic + biological contact oxidation + precipitation + coagulation sedimentation + filtration + disinfection treatment” Level A standard in the Pollutant Discharge Standard of Treatment Plant (GB18918-2002).