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Microfiltration Membranes


Microfiltration Membrane Elements


Our Microfiltration elements are available in a variety of materials.  Please choose a category to the left to view membranes and specifications.


What Is Microfiltration?

Microfiltration is generally referred to the filtration at less than 1 Micron level.  Depth filters of the conventional type are available in 0.5, 0.2, 0.1 Microns and other sizes.  Most Microfilters use membrane materials.

Spiral wound microfiltration membranes allow a cross-flow type of microfiltration.  Feed water at a relatively high flow is pumped at a pressure of 10-50 psi along the membrane surface.  A small amount (5-10%) of the water goes through the membrane.  The balance of water goes to the next membrane element or is recycled back.  In addition, a small amount of concentrate is removed from the system.

This cross-flow process helps minimize the fouling of the surface of the microfiltration membrane.  Many different materials have been used for Microfiltration but most common are Polysulfone and Polyvinylidine Fluoride.  Membrane in both of these materials are available from Applied Membranes, Inc.  Please choose a category below to view membranes and specifications.

Polyvinylidine Fluoride (PVDF) Microfiltration Membrane Elements

Typical application areas for PVDF membranes are:
  • Wastewater pretreatment
  • Oil/Water Separations
  • Beverage polishing for effective clarification and bacteriostatic assurance
  • Surface water bacteria and oil remediation for safe human contact
  • Best choice for very low pressure, high flux applications
Polysulfone (PS)Microfiltration MF Membrane Elements
 

Typical application areas for PS membranes are:

  • Post-Treatment of Ultrapure Water
  • Removal of Suspended Solids
  • Process Steam clarification, such as sugar solutions

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