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Nanofiltration (NF) or nanofiltration membrane technology is a relatively recent ceramic membrane filtration system used most often with low total dissolved solids water such as surface water and fresh groundwater, with the purpose of softening (polyvalent cation removal) and removal of disinfection by-product precursors such as natural organic matter and synthetic organic matter.

Nano membrane technology has no chemical reaction, no heating, no phase change, no damage to biological activity, no change in flavor and aroma, and is therefore more and more widely used in various separation and purification in water treatment, food, and pharmaceutical industries process.

The ceramic membrane is key to the performance of NF systems. They are produced in spiral wound, tubular, and hollow fiber formats, from a range of materials, including cellulose derivatives and synthetic polymer.

NF membrane have pore sizes from 1-10 nanometers, smaller than that used in microfiltration and ultrafiltration, but just larger than that in reverse osmosis.

Application range of NF Membrane Technology
Desalination & purification
Dehydrated, concentrated
Decolor
Solvent recovery

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