Hollow Fiber UF

DOW NSF/ANSI 61 Drinking Water Ultrafiltration Modules

 DOW Ultrafiltration Modules for Pretreatment

DOW IntegraFlux Ultrafiltration Modules Up to 35% higher permeability than previous generation modules helping to improve operating efficiencies and productivity DOW IntegraFlux™ Ultrafiltration (UF) modules with XP fiber are made from high permeability, high mechanical strength, hollow fiber PVDF membranes. The modules provide excellent performance, industry leading membrane area with low energy and chemical consumption.

Benefits of DOW Ultrafiltration Modules

• Excellent removal of colloids, particles, bacteria, and viruses
• Protection of downstream equipment and processes such as RO
• High flux membrane
• High surface area for good packing density and small footprint
• Low chemical consumption
• High chemical-resistance PVDF that allows aggressive chemical use for treating challenging water when needed
• Long term performance from mechanically strong fibers, easy cleaning and wettability providing long membrane life and reliable operation
• Temperature tolerant for more effective cleaning
• High tolerance to feed solids
• Ability to treat challenging water with limited pretreatment
• Outside-In flow configuration allowing a wide range of solids in the feed water minimizing the need for pretreatment processes and reducing the backwash volume compared to Inside-Out configurations

DOW Hollow Fiber UF Module Features

The DOW™ Ultrafiltration module utilizes a double-walled hollow fiber (capillary) PVDF membrane which has a very small nominal pore diameter for PVDF material that allows for the removal of all particulate matter, bacteria and most viruses and colloids. Despite the small pore diameter, the membrane has a very high porosity resulting in a flux similar to that of micro-filtration (MF) and can effectively replace MF in most cases.

The DOW™ Ultrafiltration double-walled hollow fiber membrane is formed from high grade polymeric chemicals. The virtually defect-free, double-walled fiber membrane is much more robust and less prone to breakage than single-wall hollow fibers but due to the high pore distribution, does not compromise flux. The uniformity of pore size and outside-in flow ensures the DOW™ Ultrafiltration membrane createsa perfect barrier without sacrificing performance.

• 0.03 µm nominal pore diameter
•  PVDF Polymeric Hollow Fibers For High Strength And Chemical Resistance
• Hydrophilic PVDF Fibers for Easy Cleaning And Wettability
• Excellent chemical resistance 
• Long membrane life and reliable operation
• Outside In Flow Configuration
• U-PVC Housing
• Certified Under NSF/ANSI Standard 61 For Safe Use In Drinking Water Applications (SFD models only)

Applications for DOW Ultrafiltration Modules

• Municipal drinking water systems
• Industrial water pretreatment
• Protection of reverse osmosis elements
• Secondary effluent wastewater and water reuse systems
• Ground water and surface water treatment
• Seawater desalination pretreatment
• Mobile water and containerized systems

Other Hollow Fiber Ultrafiltration Products

• AMI Hollow Fiber Ultrafiltration Membrane Elements (HF UF Membranes)

Product Data Sheets and Technical Information for DOW Hollow Fiber UF Modules

• DOW SFP-2660 & SFD-2660 HF UF Data Sheet
• DOW SFP-2860 & SFD-2860 HF UF Data Sheet
• DOW SFP-2860XP & SFP-2880XP IntegraFlux HF UF Data Sheet
• DOW Ultrafiltration Manual
  
  
• About Ultrafiltration