| Filter | Before wastewater treatment | After wastewater treatment | |||
| Infiltration flow (mL·s−1) | Volume of water returned (mL) | Infiltration flow (mL·s−1) | Volume of water returned (mL) | Clogging rate (%) | |
| Control | 2.9 | 1000 | 1.9 | 650 | 34.5 |
| SCH1-2.P | 3.2 | 900 | 3 | 1000 | 6.2 |