Ultrafiltration Systems
CM Aquatechnik designs and supplies PVDF hollow-fibre ultrafiltration (UF) systems for pre-treatment of surface water, river water, and secondary effluent ahead of reverse osmosis. UF membranes remove
Technical Specifications
| Membrane Type | PVDF hollow-fibre, inside-out or outside-in |
| Pore Size | 0.01 – 0.04 µm (ultrafiltration range) |
| Flux Rate | 40 – 120 LMH (net design flux) |
| SDI Output | < 3.0 (suitable for RO feed) |
| Turbidity Removal | > 99.9% (output < 0.1 NTU) |
| Bacteria Removal | ≥ 4-log (99.99%) |
| Backwash Frequency | Every 15 – 60 min (automatic) |
| CEB Frequency | Daily to weekly (automatic) |
| Operating Pressure | 0.1 – 2.5 bar (TMP) |
| Module Diameter | 6" – 10" housings |
| Standards | NSF 61 · WHO · CE |
Product Overview
CM Aquatechnik designs and supplies PVDF hollow-fibre ultrafiltration (UF) systems for pre-treatment of surface water, river water, and secondary effluent ahead of reverse osmosis. UF membranes remove suspended solids, colloidal matter, bacteria, and viruses to consistently achieve SDI < 3, protecting downstream RO membranes and extending their operational life.
Each system features fully automated backwash and chemical-enhanced backwash (CEB) cycles, ensuring stable long-term performance without operator intervention. Systems are designed for dead-end or cross-flow filtration depending on feed water quality.
Key Features
- Consistent SDI < 3 for reliable RO feed quality
- Absolute 0.04 µm barrier removes bacteria and Cryptosporidium
- Automated backwash reduces chemical consumption
- Low energy operation (< 0.1 kWh/m³)
- Compact footprint compared to conventional media filtration
- Air integrity testing capability for membrane breach detection
