Process | Pressure Difference | Work |
Microfiltration (MF) | Pressure difference of about 100 KPa | Suspended particles, fibers |
Ultrafiltration (UF) | 0.1 - 1.0 MPa pressure difference | Colloidal macromolecules |
Reverse osmosis (RO) | 0.5 - 1 MPa pressure difference | Solute, salt |
Nanofiltration (NF) |