Abstract
The study of groundwater hydrogeochemistry is of great significance to the development, utilization and protection of regional groundwater resources. In this paper, a complete and comprehensive analysis of three runoff zones is carried out in the Fengfeng mining area of Handan City, Hebei Province, China. The Piper trilinear diagram is used to analyze the types of karst groundwater hydrochemistry, the ionic proportionality coefficient method is used to analyze the sources of groundwater chemistry and the formation process, the chlorine-alkali index is used to react to the exchange reactions between cations, and PHREEQC software is also used to invert the groundwater simulation. The results are: the type of karst water hydrochemical in the study area is mainly HCO3·SO4–Ca·Mg; the ions are mainly influenced by rock halite, carbonate, sulphate, silicate and cation exchange; in the groundwater runoff zone, aragonite, calcite and dolomite are in saturated state, while gypsum and rock halite are in unsaturated state. The study of karst groundwater hydrochemical types, analysis of water-rock interaction and exploration of hydrogeochemical evolution mechanisms are intended to provide reference for karst water supply security and water resources utilization.
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ACKNOWLEDGMENTS
The project was supported by the National Natural Science Foundation of China (41 902 254), the Ecological Wisdom Mine Joint Fund of the Natural Science Foundation of Hebei province (D2020402013) and the key R & D project of Hebei Province (21373901D).
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Kai, B., Hui, S., Guilei, H. et al. Hydrogeochemical Modeling of Karst Groundwater in the Fengfeng Mining Area. Water Resour 50, 948–959 (2023). https://doi.org/10.1134/S0097807822602187
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DOI: https://doi.org/10.1134/S0097807822602187