Nanofiltration - De-mineralization - Removal of total organic carbon (TOC) in water


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Nanofiltration

Nanofiltration is similar to Reverse Osmosis (RO), except that some monovalent anions and very low molecular weight organics are able to pass through. Nanofiltration is selected when RO and Ultrafiltration are not the correct choice for separation. Nanofiltration can perform separation applications such as demineralisation, colour removal and desalination. In concentration of organic solutes, suspended solids and polyvalent ions, the permeate contains monovalent ions and low-molecular-weight organic solutions like alcohol.

Applications:

De-mineralisation
Removal of TOC (total organic carbon)
Provision of process water at point of use, CIP or simple syrup mix
Bottled mineral water

Benefits:

Selective extraction of salts does not alter the taste of the water
Selective total dissolved solids reduction
Low operating pressure
Removal of precursors to trihalomethanes (THM) formation