Research Article
Phytoremediation of Gold Mine Tailings Amended with Iron-Coated and Uncoated Rice Husk Ash by Vetiver Grass (Vetiveria zizanioides (Linn.) Nash)
Table 2
The selected physicochemical properties of the gold mine tailings.
| Parameters | Value |
| Clay (%) | 14.23 ± 0.61 | Silt (%) | 49.68 ± 0.89 | Sand (%) | 36.02 ± 1.43 | Texture (USDA) | Silty loam | Moisture content % at 33 kpa | 25.90 ± 0.36 | Moisture content % at 1500 kpa | 4.04 ± 0.81 | pH | 7.90 ± 0.02 | EC (dS m−1) | 1.48 ± 0.01 | CEC (cmol(+) kg−1) | 10.75 ± 0.83 | Total carbon (%) | 1.56 ± 0.01 | ANC (kg H2SO4 t−1) | 63.90 ± 2.01 | Total N (%) | 0.036 ± 0.004 | Total P (%) | 0.076 ± 0.002 | Total K (%) | 0.196 ± 0.005 | Total S (%) | 0.140 ± 011 | Total Ca (mg kg−1) | 8600 ± 30.51 | Total Mg (mg kg−1) | 10750 ± 152 | Total Na (mg kg−1) | 1480 ± 21 | Total As (mg kg−1) | 1625.25 ± 12 | Total Cd (mg kg−1) | 57.00 ± 1.41 | Total Cr (mg kg−1) | 31.44 ± 0.61 | Total Cu (mg kg−1) | 75.60 ± 0.65 | Total Mn (mg kg−1) | 790.03 ± 9.98 | Total Pb (mg kg−1) | 81.80 ± 1.75 | Total Zn (mg kg−1) | 174.80 ± 1.18 | Total Fe (mg kg−1) | 16420 ± 402 |
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Mean of three replicates ± SD.
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