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- W2233337535 abstract "Waste rock and tailings of a mine generate acid mine drainage due to oxidization during long-term stacking, and this may cause serious harm to the environment. 1-year-old, 5-year-old, 10-year-old and 20-year-old waste rock of Dexing Copper Mine are chosen in the experiment for acid generation research. The static evaluation result shows that the 4 types of waste rock have the acid generating potential, and 3 types (except for 1-year-old waste rock) have generated acid. The 9-month dynamic evaluation result indicates: the pH values of waste rock of 4 different ages show remarkable negative correlation, the detected ions are mainly of fluorides, Cu 2+ , Zn 2+ , SO4 2- and Fe 3+ . 1-year-old waste rock doesn't generate acid during the entire experiment, the acid generation of 5-year-old and 10-year-old waste rock is stable, but that of 20-year-old waste rock is slow. Thus the acid generation process of waste rock can be inferred as: no acid generation - high-rate acid generation - stable acid generation - lower-rate acid generation." @default.
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- W2233337535 date "2015-01-01" @default.
- W2233337535 modified "2023-09-24" @default.
- W2233337535 title "Evaluation and Research on Static and Dynamic Acid Generation of Waste Rock at Dexing Copper Mine in Different Years" @default.
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- W2233337535 doi "https://doi.org/10.2991/ifeesm-15.2015.171" @default.
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