Author(s): Mingwei Wang; Jianwei Liu; Bing Yang; Jun Wei; Fenfei Chen; Huabin Li

Linked Author(s): Bing Yang, Jianwei Liu

Keywords: Hydrodynamic water quality model; River channel wetland; Taizi River; Water resources utilization benefit evaluation

Abstract: The construction of river wetlands is an important means to improve the water environment of rivers. However, how to determine the reasonable construction plan of river wetlands is a difficult problem at present. Taking Benxi Section of Taizi River as the research object, the MIKE 11 model was established to simulate the reduction effect of COD and NH3-N concentration in Benxi section of Taizi River under four kinds of wetland construction schemes, so as to determine the most suitable scheme. Based on AHP method and fuzzy optimization principle, the utilization efficiency of river water resources before and after wetland construction was evaluated. The results show that the pollutant concentration in river can be effectively reduced after the construction of wetland, and the greater the daily treatment capacity of wetland, the greater the pollutant reduction rate in Benxi section of Taizi River, and the less excessive water body. After the construction of river wetlands to improve the water quality of the river, the water resource utilization efficiency of the Benxi section of the Taizi River can reach a good level. This study can provide scientific reference for the determination of channel wetland construction scheme in Taizi River and other similar rivers.

DOI: https://doi.org/10.3850/iahr-hic2483430201-169

Year: 2024