| Date | 11.30 | 12.03 | 12.07 | 12.10 | 12.15 | 12.20 | 12.24 |
| Feed water COD (mg/L) | 967 | 913 | 975 | 987 | 989 | 973 | 973 |
| Effluent COD (mg/L) | 356 | 453 | 400 | 512 | 478 | 422 | 397 |
| COD removal rate (%) | 63 | 50 | 59 | 48 | 52 | 57 | 59 |
| SV30 (%) | 41 |
| 43 |
| 42 |
|
|
| MLSS (g/L) | 2756 |
| 2765 |
| 2789 |
|
|
| SVI (ml/g) | 148 |
| 156 |
| 154 |
|
|
| pH | 7.87 | 7.95 | 7.96 | 7.94 | 7.97 | 7.93 | 7.96 |