Metal concentration (ppm) at pH 4 of the mine dewatering and leach pile samples of the acid mine drainage liquid. The conditions used were non-centrifuged (NC) and centrifuged (C) before the addition of resins with concentrations determined through ICP-OES. Errors indicate ±min/max (n = 2).
| [M] ppm | Mine dewatering (NC) | Mine dewatering (C) | Leach pile (NC) | Leach pile (C) |
|---|---|---|---|---|
| Al | 158.4 ± 1.4 | 119.6 ± 1.2 | 813.2 ± 2.4 | 590 ± 7 |
| Cd | 0.1 | 0.1 | 0.1 | 0.1 |
| Cu | 30.4 | 26.7 | 133.5 ± 0.5 | 130.7 ± 1.2 |
| Fe | 959.8 ± 18.6 | 451.6 ± 2.8 | 654.2 ± 11 | 4.2 |
| Ni | 0.4 | 0.4 | 1 | 1 |
| Pb | <0.005 | <0.005 | 0.3 | 0.3 |
| Zn | 18.5 | 17.5 | 12.1 | 13 |