Ca 2+ and Mg 2+ in the effluent of B1, B2, C1, and C2 showed a decreasing trend, and the ion mass concentration was lower than that of the raw water.
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Insight into the Process and Mechanism of Water-Rock Interaction in Underground Coal Mine Reservoirs Based on Indoor Static Simulation Experiments.
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The sentences
The Na + and K + in the effluent of B1, B2, C1, and C2 all showed a trend of increasing and then decreasing, but the final ion mass concentration was higher than that of the raw water.