| Raw average | Purified average | Reduction in % |
BOO5 (mg d’O2/l) | 370.00 | 62.75 | 83.14 |
COD (mg d’O2/l) | 845.83 | 150.92 | 82.24 |
SS (mg/l) | 515.17 | 133.25 | 74.03 |