THE PRINCIPLES of membrane filtration

Membrane filtration is the selective separation of substances by porous foils and layers

1. Surface

2. Membrane

3. Support

Consequence: The substances are concentrated at the membrane surface

In order to avoid surface layers through this concentrated substances membrane technology
must provide:

  • Shear forces against adhesive reactions of substances with the membrane surface
  • Exchange of concentrations with liquids far from membrane surfaces
  • Turbulent flow on the membrane surface