Membrane Filtration (MF/UF/NF)
Mit Water supplies microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF) membrane systems for water recycling and reuse applications. These pressure-driven membrane processes provide a physical barrier to remove suspended solids, colloids, bacteria, viruses and dissolved organic matter, producing high-quality treated water suitable for a wide range of reuse purposes.
Working Principle
MF membranes with pore sizes of 0.1-10 microns remove suspended solids, bacteria and large colloids. UF membranes with pore sizes of 0.01-0.1 microns remove viruses, macromolecules and smaller colloids. NF membranes with pore sizes of 1-10 nanometres offer intermediate rejection between UF and RO, removing divalent ions and organic molecules above 200-400 Daltons.
System Features
Our membrane systems are built on skid frames with pre-piped membrane modules, feed and backwash pumps, clean-in-place system, instrumentation and PLC control. Membranes are available in hollow fibre, tubular or spiral-wound configurations. Automatic integrity testing and filtrate turbidity monitoring ensure consistent treated water quality.
Membrane filtration is the core technology for water recycling and reuse:
- Municipal wastewater reclamation for industrial and irrigation reuse
- Industrial wastewater recycling within manufacturing processes
- RO pre-treatment for seawater and brackish water desalination
- Cooling tower blowdown water recovery
- Rainwater and stormwater treatment for non-potable reuse
- Surface water treatment for drinking water production
- Electronics industry ultrapure water pre-treatment
Technical Parameters
| Flow Rate | 1 to 500 m3/h per unit |
| Membrane Types | MF (0.1-10 um), UF (0.01-0.1 um), NF (1-10 nm) |
| Configuration | Hollow fibre, tubular, or spiral-wound |
| Operating Pressure | 0.5-3 bar (MF/UF); 5-15 bar (NF) |
| Recovery Rate | 85% to 95% |
| Membrane Material | PVDF, PES, or PA thin-film composite |
| Cleaning System | Automatic backwash and chemical CIP |
| Control System | PLC with TMP monitoring and integrity testing |