Table 1 Initial concentration of toxic elements in the AMD water and industrial effluent samples
Elements | ICP-OES Readings (ppm) AMD site 1 | ICP-OES Readings (ppm) AMD site 2 | ICP-OES Readings (ppm) Industrial effluent |
|---|---|---|---|
Al | 2.43 | <0.20 | 1.57 |
As | <0.20 | <0.20 | 18 |
Fe | 3.30 | <0.20 | 0.74 |
Cu | 0.21 | <0.20 | 1340 |
Zn | 2.03 | 0.75 | 1830 |
Cr | <0.20 | <0.20 | 49 |
Ni | 1.86 | <0.20 | 304 |
Pb | <0.20 | <0.20 | 1.33 |