Highlights and application:Nanofiltration (NF) offer a range of possibilities forconcentration and demineralization of different dairyproducts. The NF SW system is characterized by:-Ideal solution for product concentration, desalinationand removal of water-Low plant investment-Low space requirements-Easy membrane change-Sanitary designThe SW membrane is a unique design, where a largemembrane area is wound into a compact element. SWelements are available with:-Various diameters (3.8-8 inches)-Various lengths (38-40 inches)-Various feed spacers (20-50 mil)-Special design for high pH/high temperature CIP-Various salt rejection and lactose rejection (NF)A number of membrane elements are fitted into astainless steel housing to form a module, and a numberof modules are built into a plant. Based on proven,modular components, each plant is customized to fit the individual applica¬tion. Further, the plantdesign allows for access to maintenance of allvital parts as well as for future cost effective plantmodifications. NF plants with SW membraneelements can be supplied with any type of processauto¬mation ranging from a simple, manual to afully automatic system, integrated in the overallfactory control system.Typical applications of NF system are as follows:-Demineralization and concentration of milk,whey and UF permeate