Table 1.
Analysis of wastewater samples.
| Wastewater Type |
Parameters | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| pH | Total Nitrogen (mg L−1) |
NO3−-N (mg L−1) |
NO2−-N (mg L−1) |
NH4+-N (mg L−1) |
Phosphate (mg L−1) |
COD (mg L−1) |
Chromium (mg L−1) |
Nickel (mg L−1) |
|
| Paper Industry | 6.29 ± 0.09 | 490 ± 0.02 | 187 ± 0.02 | 0 | 303 ± 0.02 | 77.70 ± 0.073 | 5250.0 ± 0.27 | 0.98 ± 0.02 | 0.53 ± 0.04 |
| Textile Industry | 7.74 ± 0.01 | 230 ± 0.07 | 110 ± 0.04 | 0.29 ± 0.14 | 118.71 ± 0.03 | 53.16 ± 0.012 | 735.00 ± 0.31 | 0.27 ± 0.02 | 0.43 ± 0.07 |
| Leather Industry | 7.53 ± 0.04 | 250 ± 0.04 | 162 ± 0.03 | 0.1 ± 0.03 | 89.9 ± 0.06 | 48.30 ± 0.061 | 400.50 ± 0.14 | 0.69 ± 0.06 | 1.01 ± 0.03 |
|
Municipal Wastewater |
7.42 ± 0.04 | 540 ± 0.02 | 112 ± 0.01 | 0 | 428 ± 0.03 | 69.20 ± 0.049 | 1650.00 ± 0.25 | *ND | *ND |
*ND: Not Detected.