The nanofiltration system ion selector NANO-X works according to the membrane process. In the selection process, aqueous solutions of different concentrations are separated by a nanofiltration membrane. The special feature of the nanofiltration process is that a distinction between monovalent and multivalent ions can be made, i.e. monovalent ions can pass through the membrane to a high extent while salts with multivalent ions are retained.
A particular advantage of the nanofiltration technology is the fact that - apart from the removal of dissolved salts - bacteria, germs and dissolved organic substances are reduced as well.