Background: The bidding adopts the general contracting of survey and design-construction EPC project, including the survey (including surveying) in the construction drawing design stage, construction drawing design (including the main engineering design in the construction drawing stage, immigration requisition and relocation services, geological hazard assessment services, water protection design, environmental protection design), construction (construction engineering, mechanical and electrical equipment and installation engineering, metal structure equipment and installation engineering, construction temporary engineering, soil and water conservation engineering, environmental protection engineering, etc.), information procurement and installation, etc. Until the completion of acceptance and overall handover, defect repair and other services during the warranty period of the project.
Solution: On the left and right banks of the lower reaches of the Shunzheng River, artificial shelterbelt irrigation belt and ecological porous brick slope protection (including grass belt) were constructed respectively, with a total length of 1,433m and a total construction area of 11,500 square meters. The technology of oxidation pond + constructed wetland + clear water stabilization pond is used to purify the water body of Shunzheng River, and the designed treatment water volume is 10,000 cubic meters per day. A total of 3,824 square meters of oxidation ponds, 2,546 square meters of surface flow constructed wetlands, 33,758 square meters of horizontal underflow constructed wetlands, and 6,190 square meters of clear water stabilization ponds were constructed.
