| Parameters | Sludge wastewater | Treated with PAC | Treated with PAC and PA |
| pH | 7.63 | 7.12 | 7.09 |
| Temperature (˚C) | 23.8 | 22.6 | 23.5 |
| COD (mg/L) | 934.6 | 201 | 181 |
| Turbidity (NTU) | Too high | 62.2 | 40.6 |