Study on the sewage purification of Wu Jia Dui Wetland park by the biologic food chain

The water of Wu Jia-dui Wetland park in Kunming come from the park dike outside Da-Guan river inferior V river water and the wastewater of more than 1200 persons in Wu Jiadui village. The water quantity for the 10000 m³/d,During the period of adopting Wetland engineering to manage, circulate a management, developped the biologic food chain of the integrity in the water body, Make the water quality of wetland engineering result show Good, The water is pure to see bottom, Water quality exceed discharge standard in "Discharge standard of pollutants for municipal wastewater treatment plant" (GB18918 - 2002), Attain or better than "the earth\´s surface water environment quality standard" (GB3838 - 2002) of V water standard.