Model-based Design of a Subsurface Wetland for Water Quality Improvement of the Inflow River of Baiyangdian Lake, China
The decline of water quality of the inflow river has direct negative impact on the ecological conditions of lake ecosystem. The design of subsurface wetlands was considered an effective method for water quality improvement. A subsurface wetland was designed by applying the wetland model Subwet 2.0 for treating the inflow river (Fu River) of Baiyangdian Lake. The area and volume of the wetland which are the core design parameters have been determined through simulating the changes of water quality under different design scenarios. The results showed that the area and volume should be set as 875m2 and 525m3 to make the Fu River maintain class III water quality standard. The designed wetland could reduce more than 90% the concentrations of total nitrogen and total phosphorus in the Fu River, which could greatly control the eutrophication of Baiyangdian Lake. The method of wetland design based on model could reduce the uncertainties of traditional wetland design method and facilitate the water quality improvement of aquatic ecosystems.
Subsurface wetland design Subwet 2.0 water quality improvement Fu River
F.Xu Z.F.Yang Y.W.Zhao B.Chen
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
国际会议
The 3rd Biennial ISRS Symposium Achieving Healthy and Viable Rivers (ISRS)第3届国际河流大会
北京
英文
443-448
2013-08-05（万方平台首次上网日期，不代表论文的发表时间）