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Ultra Filtration System

Ultra Filtration System

Ultrafiltration or UF is a pressure driven membrane separation process that separates particulate matter from soluble components in the carrier fluid (such as water).

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Ultrafiltration or UF is a pressure driven membrane separation process that separates particulate matter from soluble components in the carrier fluid (such as water). UF membranes typically have pore sizes in the range of 0.01 - 0.10 µm and have a high removal capability for bacteria and most viruses, colloids and silt (SDI). The smaller the nominal pore size, the higher the removal capability. Most materials that are used in UF are polymeric and are naturally hydrophobic. Common polymeric materials used in UF include: Polysulfone (PS), Polyethersulfone (PES), Polypropylene (PP), or Polyvinylidenefluoride (PVDF). Although these materials can be blended with hydrophilic agents, they can reduce the membranes ability to be cleaned with high strength disinfectants such as hypochlorite that impacts removal of bacterial growth.

 

Advantages of Ultrafiltration:

  • Low fouling membrane modules

  • Excellent filtration performance with high flux

  • High chemical resistance and temperature tolerance for effective membrane cleaning

  • Very fine nominal pore diameter (0.03 µm)

  • High removal efficiency of bacteria and viruses

  • Dead-end or concentrate bleed flow capabilities

  • Can be periodically back washed and air scoured to improve performance and extend operating life by removing the fouling layer

  • Simple, vertical, modular design allows low cost, compact systems

  • UF Outside-In or Inside-Out Configuration allows for less plugging and higher solids loading, higher flow area and easier cleaning.