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Article

Research on Water Quality Simulation and Water Environmental Capacity in Lushui River Based on WASP Model

1
Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan 411105, China
2
Department of Geology Engineering, Polytechnic School of Antananarivo, University of Antananarivo, Antananarivo 101, Madagascar
*
Author to whom correspondence should be addressed.
Academic Editor: Cheng-Zhi Qin
Water 2021, 13(20), 2819; https://doi.org/10.3390/w13202819
Received: 19 August 2021 / Revised: 30 September 2021 / Accepted: 6 October 2021 / Published: 11 October 2021
In recent years, the severe deterioration of water quality and eutrophication in the Yangtze River has brought much trouble to people’s lives. Because of this, numerous management departments have paid more and more attention to the treatment of the water environment. In order to respond to water environmental protection policy and provide management departments with a basis for refining water quality, this paper takes the Zhuzhou section of Yangtze River-Lushui watershed as its research object. First, we used the Water Quality Analysis Simulation Program (WASP) model as a tool, and obtained the pollution load using the FLUX method formula. During the calibration process, the sensitivity analysis method, the orthogonal design method, and the trial and error method were used. Then, we verified the results by using water quality monitoring data published by Zhuzhou Ecological Environment Bureau. Following that, the water environmental capacity of the Lushui River in normal, wet and dry periods was calculated using the WASP model: the chemical oxygen demand (COD) was 14,072.94 tons/yr, 17,147.7 tons/yr and 10,998.18 tons/yr, respectively; ammonia nitrogen (AN) was 469.098 tons/yr, 571.59 tons/yr and 366.606 tons/yr, respectively; and total phosphorus (TP) was 93.8196 tons/yr, 114.318 tons/yr and 73.3212 tons/yr, respectively. The results show that the WASP model is applicable and reliable and can be used as an effective tool for water quality prediction and management in this area. View Full-Text
Keywords: WASP model; water quality simulation; sensitivity analysis; orthogonal design; water environmental capacity WASP model; water quality simulation; sensitivity analysis; orthogonal design; water environmental capacity
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MDPI and ACS Style

Obin, N.; Tao, H.; Ge, F.; Liu, X. Research on Water Quality Simulation and Water Environmental Capacity in Lushui River Based on WASP Model. Water 2021, 13, 2819. https://doi.org/10.3390/w13202819

AMA Style

Obin N, Tao H, Ge F, Liu X. Research on Water Quality Simulation and Water Environmental Capacity in Lushui River Based on WASP Model. Water. 2021; 13(20):2819. https://doi.org/10.3390/w13202819

Chicago/Turabian Style

Obin, Nicolas, Hongni Tao, Fei Ge, and Xingwang Liu. 2021. "Research on Water Quality Simulation and Water Environmental Capacity in Lushui River Based on WASP Model" Water 13, no. 20: 2819. https://doi.org/10.3390/w13202819

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