Table 2.
Characterization of four different dilutions and original WW of combined industrial wastewater.
| Parameters | Influent/raw wastewater dilutions | ||||
|---|---|---|---|---|---|
| 20% | 40% | 60% | 80% | Original WW | |
| pH | 8.1 | 8.48 | 8.6 | 8.76 | 10.2 |
| Conductivity (µs) | 627 | 646 | 645 | 676 | 702 |
| TDS | 378 | 330 | 344 | 394 | 411 |
| TS | 712 | 812 | 780 | 1333 | 1400 |
| VS | 600 | 520 | 1050 | 1160 | 1960 |
| COD | 70 | 189 | 284 | 379 | 474 |
| BOD | 23.3 | 25.4 | 50.9 | 77 | 84.8 |
| Nitrates | 24 | 59 | 83 | 98 | 145 |
| Ammonia | 17 | 23 | 45 | 57 | 82 |
| Lead | 0.131 | 0.653 | 1.335 | 1.851 | 2.337 |
| Nickel | 0.117 | 0.225 | 0.315 | 0.271 | 0.403 |
| Cadmium | 0.026 | 0.021 | 0.009 | 0.026 | 0.048 |
The values are given as mg/L except pH and conductivity.