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PVDF Hollow Fiber UF Membrane Element
Ultrafiltration membrane belongs to capillary hollow fiber membrane,It is a polymer material membrane,It is a separation product without phase change.With the material of modified PVDF, It has good water permeability, mechanical properties, chemical resistance and pollution resistance. The Module type is Outside-in. It can filter various harmful substances such as bacteria, colloids, suspended solids and microorganisms which are in the feed water.
Application
Water Treatment:
sterilization, turbidity removal and purification of tap water, groundwater and surface water;
pretreatment of reverse osmosis.
Wastewater Treatment and Reuse:
urban reclaimed water reuse, industrial wastewater treatment and reuse, hospital wastewater, and treatment of oilfield reinjection water.
Seawater Desalination:
seawater purification and seawater desalination pretreatment.
Product Name |
PVDF Ultra Filtration Membrane |
Hollow Fiber Material |
PVDF |
Hollow Fiber Diameter ID/OD |
0.7mm/1.3mm |
Membrane Filter Precision |
200,000 Dalton (0.1μm) |
Design Pure Water Flux |
≥300L/M2.H (0.15MPa,25℃) |
Design Flux |
40-120L/M2.H (0.15MPa,25℃) |
Suggested Working Pressure |
≤0.2MPa |
Max.Water Inlet Pressure Pressure |
0.25MPa |
Max.Transmembrane Pressure |
0.15MPa |
Max.Backwash Pressure |
0.15MPa |
Air Wash Flux |
0.1-0.15N m3/m2.h |
Air Wash Pressure |
≤0.1MPa |
Working Temperature |
5-45ºC |
pH Range |
Working: 4-10; Washing: 2-12 |
Operation Mode |
Cross-flow or Dead-end |
Structure |
Outside-in |
Sealing Material |
Epoxy resin |
Membrane Shell Material |
UPVC |
Inlet water requirement:
Influent turbidity |
≤25NTU |
Oil and fat content |
≤2mg/L |
Influent suspended solids |
≤20mg/L |
Total iron content |
≤1mg/L |
Continuous influent residual chlorine |
≤5ppm |
COD (recommended) |
≤500mg/L |
To prevent large particles in the raw water from clogging the system. Add a filter below 50 microns before the water enters |
Water production effect:
Ingredients in water |
Filter Effect |
Suspended solids, particles>1um |
removal rate ≥99% |
SDI |
effluent ≤3 |
Viruses, bacteria |
>99.9%, >4 log |
Turbidity |
<1NTU |
TOC |
removal rate 0-25% |
Influent turbidity is less than 25NTU |
Operation Parameters:
Maximum backwash pressure |
0.15MPa |
Backwash water flow |
100-150L/m2.h |
Backwash frequency |
Every 30-60 minutes |
Backwash time |
30-60 seconds each time |
Dosing backwash frequency |
0~4 times/day |
Dosing backwash time |
5-10 minutes each time |
Chemical cleaning frequency |
1~3 months |
Cleaning chemicals:
Sterilization |
15ppm sodium hypochlorite |
Organic pollution cleaning |
0.2% sodium hypochlorite |
Inorganic pollution cleaning |
1-2% citric acid |
Technical Parameters:
Model |
Membrane Area M2 |
Design Pure Water Flux LPH |
Design Flux LPH |
Size MM |
Port Size |
UF90-PVDF |
6.5 |
2000 |
250-750 |
φ90mm×1160 |
DN25 |
UF160-PVDF |
40 |
12000 |
1500-5000 |
φ160mm×1810 |
DN40 |
UF200AS-PVDF |
34 |
10000 |
1250-4000 |
φ200mm×1350 |
DN50 |
UF200AM-PVDF |
38 |
11500 |
1500-4500 |
φ200mm×1480 |
DN50 |
UF200-PVDF |
47 |
14000 |
2000-5500 |
φ200mm×1710 |
DN50 |
UF250-PVDF |
78 |
23500 |
3000-9500 |
φ250mm×1710 |
DN50 |
UF2860-PVDF |
52 |
15500 |
2000-6000 |
φ225mm×1860 |
DN50, Air Tube:10mm |
UF2880-PVDF |
77 |
23000 |
3000-9000 |
φ225mm×2360 |
DN50, Air Tube:10mm |
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