PVDF Ultrafiltration Membrane Module UFf157 Stainless Steel Housing for Whole House Water Purification
Applications
Drinking water treatment of tap water, surface water, well water and river water;
Pretreatment of RO;
Treatment, recycle and reuse of industrial waste water.
Filtration Performance
This product is proven to have below filtering effects according to the service conditions of different water sources:
| Ingredient | Effect |
| SS, Particles > 1μm | Removal Rate ≥ 99% |
| SDI | ≤ 3 |
| Bacteria, Viruses | > 4 log |
| Turbidity | < 1NTU |
| TOC | Removal Rate: 0-25% |
*Above data is obtained under the condition that feeding water turbidity is < 25NTU.
Product Parameters
Technical Parameters
| Filtering Type | Outside-in |
| Membrane Material | Modified PVDF |
| MWCO | 200K Dalton |
| Membrane Area | 77m2 |
| Membrane ID/OD | 0.8mm/1.3mm |
| Dimensions | Φ225mm*2360mm |
| Connector Size | DN50 Clamping; Air Inlet – 10mm air pipe |
Application Data
| Pure Water Flux | 3,500L/H (0.15MPa, 25℃) |
| Designed Flux | 35-100L/m2.hr (0.15MPa, 25℃) |
| Suggested Working Pressure | ≤ 0.2MPa |
| Maximum Transmembrane Pressure | 0.15MPa |
| Maximum Backwashing Pressure | 0.15MPa |
| Air Washing Volume | 0.1-0.15N m3/m2.hr |
| Air Washing Pressure | ≤ 0.1MPa |
| Maximum Working Temperature | 45℃ |
| PH Range | Working: 4-10; Washing: 2-12 |
| Operating Mode | Cross Flow or Dead-end |
Feeding Water Requirements
Before feeding water, a security filter < 50μm should be set to prevent blockage caused by large particles in raw water.
| Turbidity | ≤ 25NTU |
| Oil & Grease | ≤ 2mg/L |
| SS | ≤ 20mg/L |
| Total Iron | ≤ 1mg/L |
| Continuous Residual Chlorine | ≤ 5ppm |
| COD | Suggested ≤ 500mg/L |
*Material of UF membrane is polymer organic plastic, there must not be any organic solvents in raw water.
Operating Parameters
| Backwashing Flow Rate | 100-150L/m2.hr |
| Backwashing Frequency | Every 30-60min. |
| Backwashing Duration | 30-60s |
| CEB Frequency | 0-4 times per day |
| CEB Duration | 5-10min. |
| CIP Frequency | Every 1-3 months |
| Washing Chemicals: | |
| Sterilization | 15ppm Sodium Hypochlorite |
| Organic Pollution Washing | 0.2% Sodium Hypochlorite + 0.1% Sodium Hydroxide |
| Inorganic Pollution Washing | 1-2% Citric Acid/0.2% Hydrochloric Acid |
Component Material
| Component | Material |
| Membrane | Reinforced PVDF |
| Sealing | Epoxy Resins |
| Housing | UPVC |
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