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Article

A Comprehensive Evaluation Model of Ammonia Pollution Trends in a Groundwater Source Area along a River in Residential Areas

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College of Geology and Environment, Xi’an University of Science & Technology, No. 58 Yanta Road, Xi’an 710054, China
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Institute of Mine Environmental Engineering, Xi’an University of Science & Technology, No. 58 Yanta Road, Xi’an 710054, China
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Guodu Education Science and Technology Industrial Development Zone, School of Art, Xi’an International Studies University, No. 6 Wenyuan South Road, Xi’an 710128, China
*
Author to whom correspondence should be addressed.
Academic Editors: Alexander Yakirevich and Andreas N. Angelakis
Water 2021, 13(14), 1924; https://doi.org/10.3390/w13141924
Received: 27 May 2021 / Revised: 3 July 2021 / Accepted: 5 July 2021 / Published: 12 July 2021
(This article belongs to the Section Hydrology)
In this study, a comprehensive evaluation model of ammonia pollution trends in a groundwater source area along a river in residential areas is proposed. It consists of coupling models and their interrelated models, including (i) MODFLOW and (ii) MT3DMS. The study area is laid in a plain along a river, where a few workshops operate and groundwater is heavily contaminated by domestic pollutants, agricultural pollutants, and cultivation pollutants. According to the hydrogeological conditions of the study area and the emissions of ammonia calculated in the First National Pollution Source Census Report in China, this study calibrates and verifies the prediction model. The difference between the observed water level and the calculated water level of the model is within the confidence interval of the test. This means that the model is reliable and that it can truly reflect changes in the groundwater flow field and can be directly used to simulate the migration of ammonia. The simulation results show that, after 20 years, the center of the ammonia pollution plume will gradually flow east along with the groundwater over time, mainly affecting the groundwater, which is less than 200 m from the river, and the ammonia content near wells at a maximum extent of less than 0.3 mg/L. View Full-Text
Keywords: ammonia pollution; model; MODFLOW; pollution plume; groundwater ammonia pollution; model; MODFLOW; pollution plume; groundwater
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MDPI and ACS Style

Wang, Z.; Zhao, X.; Xie, T.; Wen, N.; Yao, J. A Comprehensive Evaluation Model of Ammonia Pollution Trends in a Groundwater Source Area along a River in Residential Areas. Water 2021, 13, 1924. https://doi.org/10.3390/w13141924

AMA Style

Wang Z, Zhao X, Xie T, Wen N, Yao J. A Comprehensive Evaluation Model of Ammonia Pollution Trends in a Groundwater Source Area along a River in Residential Areas. Water. 2021; 13(14):1924. https://doi.org/10.3390/w13141924

Chicago/Turabian Style

Wang, Zhuoran, Xiaoguang Zhao, Tianyu Xie, Na Wen, and Jing Yao. 2021. "A Comprehensive Evaluation Model of Ammonia Pollution Trends in a Groundwater Source Area along a River in Residential Areas" Water 13, no. 14: 1924. https://doi.org/10.3390/w13141924

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