Ultra-Filtration Membrane

Waterfiltech ultra-filtration (UF) hollow-fiber membranes are designed with a robust life expectancy, giving you confidence in your water treatment system’s operation, and helping you comply with regulatory requirements.

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Based on different pore sizes, Membrane Filtration can be divided to Micro-Filtration Membrane (0.05 -1.0um), Ultra-Filtration Membrane (0.005 – 0.5um), Nano-Filtration Membrane (0.0005 -0.01um) and Reverse Osmosis Membrane (0.0001-0.001um).


Waterfiltech currently offers over a dozen different types of ultra-filtration membranes, all of which exhibit excellent pH and temperature resistance, in addition to low fouling tendencies. Some common applications of Waterfiltech’s UF membrane technology include:

Industrial Process and Wastewater

  • Oil Removal in Wastewater Treatment
  • Dissolved NOM in Surface Water


  • Whey Protein Concentrate/Isolate concentration
  • Milk protein concentration/standardizing
  • Brine clarification
  • Casein/Whey Fractionation

Biotech / Pharmaceutical

  • Enzyme/protein concentration
  • Endotoxin & pyrogen removal
  • Antibiotics production
  • Blood plasma processing

Food & Beverage

  • Gelatin concentration & purification
  • Plant extract processing
  • Corn wet milling
  • Fruit juice concentration

Automotive / Industrial

  • Electrocoat painting
  • Industrial wastewater treatment


  • Effective bacterial destruction
  • Effective depyrogenation (endotoxin reduction)
  • Efficient destruction of organic contamination
  • Reduced occurrence of chemical by-product formation
  • Minimal residue of chemical interference
  • Economical and easy-to-use cleaning age


  • Polyacrylonitrile (PAN)
  • Polyvinyl Chloride (PVC)
  • Polyvinylidene Fluoride (PVDF)
  • Polysulfone (PSF/PSU)
  • Polypropylene (PP)

Working Principle

Ultra-filtration is a pressure-driven purification process in which water and low molecular weight substances permeate a membrane while particles, colloids, and macromolecules are filtered. The primary removal mechanism is size exclusion. A properly designed UF cartridge allows efficient rising of ionic residue from the cleaning and rapidly returns to optimal resistivity and organic purity.

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