Nanofiltration (NF) rejection characteristic falls between Reverse Osmosis and Ultrafiltration membrane. NF membrane allows water, salt [NaCl] and other monovalent ions to pass through the membrane, but retains the organic molecules and a selective portion of divalent ions.

This process solves the problem of separating mineral molecules from organic molecules without the high operating costs associated with other chemical or electrical demineralizing systems. It produces highly profitable, value added products by fractionating various feed streams into one or more new products.

We construct UF systems in a unitized design that assures consistent product quality and additional operator benefits including

Spiral wound membranes are most common type of configurations for this range due to its compact design.

Typical applications of NF are

  • Desalting of organic & aqueous stream.
  • Concentration of desired molecules in API & Biotech industries (fermentation products like antibiotic).
  • In production & demineralization of WPC, WPI, MPC.
  • Recovery of valuable solute from waste stream.
  • As an alternative to extraction process for removal of salts.
  • Recovery of homogenous catalyst & dyes in chemical industries.