Applied Membranes | Purchase Online |  Q & A | Technical Articles | Design Information | Search

What is Nanofiltration?

Nanofiltration, in concept and operation, is much the same as reverse osmosis.  The key difference is the degree of removal of monovalent ions such as chlorides.  Reverse osmosis removes the monovalent ions at 98-99% level at 200 psi.  Nanofiltration membranes’ removal of monovalent ions varies between 50% to 90% depending on the material and manufacture of the membrane.  For this reason, there is a variety of Nanofiltration membranes available.  Each type is particularly suited to a certain application and may not be acceptable to a different application.

Nanofiltration membranes and systems are used for water softening, food and pharmaceutical applications.  For specifications and other information on specific nanofiltration membrane products, visit the “Membranes” section of our website at http://www.appliedmembranes.com.



Back Home Up Next

 Determining SDI What's Nanofiltration What's Ultrafiltration Membrane Rejection Levels Temperature Correction Pressure Correction Concentrate Recycle Membrane Spectrum Membrane Design 14 Factors for RO Design Water Quality Info Reverse Osmosis Basics Problems with Chloramines and Higher pH Nitrate Removal Ion Exchange Ozone High Purity Water

Applied Membranes Product Selection Links:
[Reverse Osmosis Membranes] [Reverse Osmosis Systems][Home RO Systems][Seawater Desalination Reverse Osmosis Systems] [Media Filters, Carbon Filters, Water Softeners, Etc.] [RO Filters & Housings] [RO Membrane Housings/Pressure Vessels] [Residential RO Components] [Commercial RO Components] [RO Pumps] [Membrane Chemicals] [Ultravioloet (UV) Systems] [Ozone][Water Quality Testers  (SDI)]


All Content on this site is  intended for informational purposes for experienced water treatment professionals only.  Applied Membranes, Inc. does not assume any liability for any damages caused by the misapplication or misinterpretation of any of the information contained on this website.
© Applied Membranes, Inc. 2007