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Registration Date 9 Sep 2015
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Nanofiltration

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Environment Water and Wastewater

Water Membrane

Nanomaterials

NPD Conjectured

Silver

Ag Nanoparticle /Nanopowder CAS Number : 7440-22-4
NPD Conjectured

Zinc oxide

ZnO Nanoparticle /Nanopowder CAS Number : 1314-13-2
NPD Conjectured

Titanium dioxide

TiO2 Nanoparticle /Nanopowder CAS Number : 13463-67-7
NPD Conjectured

Silicon dioxide

SiO2 Nanoparticle /Nanopowder CAS Number : 7631-86-9

Properties

Typical salt retention rates are between approximately 80 - 85 %. Multivalent ions (e.g. Ca and Mg) are retained better than univalent ions (e.g. Na, K). Nanofiltration systems are often a good alternative to reverse osmosis systems because there is no need for time-consuming regular regeneration with large amounts of salts.

Manufacturer's Description

With nanofiltration, ions dissolved in water are held back to a lesser degree than with reverse osmosis.