| PWA standards [2] | Best removing material | Parameter |
| 45 - 100 | Organoclay, 7.8 mg/L | TKN |
| 45 - 60 | Organoclay; 8.5 mg/L | BOD |
| 90 - 120 | Charcoal; 617 mg/L | COD |
| 5.5 - 7.5 | Organoclay;7.9 | PH |
| - | Organoclay 30.7 NTU | Turbidity |
| - | Charcoal 2365 | EC |
| 1000 - 1500 | Charcoal 1585 mg/L | TDS |