The Nanofiltration process is a Reverse Osmosis process using a relatively open RO membrane, allowing water and small univalent ions (Na+, K+, Cl-) to pass.

Typical NF applications are:

Dairy

Whey
        Partly demineralised WPC (baby food, special WPC products)
        Pre-treatment for ion exchange or electrodialysis
        Desalination of salt whey (Cheddar)
Milk
        Partly demineralised milk (liquid milk, special milk powder products)
UF Permeate
        Partly demineralised permeate for fermentation, lactose powder, 90% LAC/TS powder
CIP Solutions
        Purification and re-use of caustic, acid and water



Food & Beverage

Gelatine - concentration