| Type of battery leachate (MABL) |
| Parameter |
BL1 |
BL2 |
BL3 |
BL4 |
BL5 |
| PH |
3.29 |
2.14 |
2.34 |
1.56 |
6.29 |
| Cadmium |
1.417 ± 0.06 |
1.410 ± 0.00 |
1.417 ± 0.06 |
1.427 ± 0.21 |
1.413 ± 0.06 |
| Cobalt |
1.847 ± 0.06 |
1.850 ± 0.20 |
1.837 ± 0.12 |
1.827 ± 0.32 |
1.837 ± 0.15 |
| Chromium |
24.1 ± 15.59 |
23.467 ± 25.03 |
29.533 ± 8.51 |
11.3 ± 13.53 |
20.433 ± 17.62 |
| Copper |
2.783 ± 2.41 |
3.277 ± 1.88 |
2.44 ± 2.63 |
2.437 ± 1.33 |
2.18 ± 1.06 |
| Iron |
1.77 ± 0.40 |
2.323 ± 1.01 |
1.76 ± 0.36 |
1.83 ± 1.73 |
1.733 ± 0.15 |
| Manganese |
1.853 ± 0.12 |
1.833 ± 0.12 |
18.57 ± 0.15 |
1.84 ± 0.17 |
1.85 ± 0.17 |
| Molybdenum |
2.017 ± 0.45 |
2.010 ± 0.20 |
2.027 ± 0.15 |
2.073 ± 0.92 |
2.0 ± 0.20 |
| Nickel |
2.277 ± 0.67 |
2.517 ± 0.15 |
2.267 ± 0.15 |
2.257 ± 1.25 |
2.193 ± 0.32 |
| Lead |
8.167 ± 2.60 |
9.383 ± 6.19 |
7.35 ± 1.93 |
27.9 ± 17.00 |
12.1 ± 3.61 |
| Selenium |
2.023 ± 0.72 |
2.057 ± 0.84 |
2.023 ± 0.55 |
2.233 ± 3.20 |
2.043 ± 0.34 |
| Zinc |
1.757 ± 0.06 |
2.277 ± 0.40 |
1.758 ± 0.06 |
1.757 ± 0.21 |
0.21 1.747 ± 0.06 |
Values are significantly higher (P<0.05) against the NAFDAC, USEPA, FEPA and WHO, n=3. Values are measured in part per million (ppm) |
