Aquaporin Inside® Forward Osmosis membrane products

Aquaporin Inside® Forward Osmosis (FO) membrane enables high rejection of contaminants and low reverse back diffusion using only osmotic pressure.

Aquaporin produces advanced FO membranes that are highly capable of rejecting contaminants and/or retaining valuable compounds.

Higher rejection rates and exceptionally low back diffusion of draw solutes
The Aquaporin Inside® FO Membrane Technology enables higher rejections using aquaporin proteins in the active layer. Aquaporin proteins are virtually 100% selective to water molecules, which drastically lowers back diffusion of draw solutes.

Ideal FO applications include:

  • Concentration of valuable components when you want to retain aromas, colours, flavours, and nutrients. Examples include concentration of milk protein, beer, coffee, fruit juices, etc.
  • Pre-treatment of difficult wastewater before reverse osmosis (RO) treatment. Low fouling propensity of FO protects the RO membrane while the double membrane barrier (FO and RO) generates high quality permeate water without micro-pollutants and xenobiotics.
  • Zero or Minimal Liquid Discharge applications where the aim is to reach high water recovery resulting in a minimum amount of liquid waste to be treated.

HFFO2-220 Module


The Aquaporin Inside® Hollow Fiber FO module with its 2.3 m2 membrane area is perfect for industrial and piloting of technology. The element has impressive high rejection rates and low back diffusion due to the Aquaporin proteins coated on the lumen side of the fibers.

Key features:

  • Suitable for industrial lab and pilot scale applications
  • High rejection of difficult contaminants and preserving valuable compounds

HFFO.6 Module


The HFFO.6 hollow fiber FO module is ideal for customers who have moved past proof-of-concept studies but would like to perform lab-scale testing with hollow fiber membranes before scaling up production. Furthermore, it can be applied to a range of biomedical and analytical concentrations at smaller volumes, fitting in nicely below the larger HFFO2-220 module.

Key features:

  • Requires lower feed and draw solution volumes
  • Suitable for academia lab-scale testing
  • High rejection of difficult contaminants and preserving valuable compounds
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