| ProMinent |
Environment Water and Wastewater
Water MembraneSilver
Ag Nanoparticle /Nanopowder CAS Number : 7440-22-4Zinc oxide
ZnO Nanoparticle /Nanopowder CAS Number : 1314-13-2Titanium dioxide
TiO2 Nanoparticle /Nanopowder CAS Number : 13463-67-7Silicon dioxide
SiO2 Nanoparticle /Nanopowder CAS Number : 7631-86-9Typical 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.
With nanofiltration, ions dissolved in water are held back to a lesser degree than with reverse osmosis.
