ION EXCHANGES

Ion exchangers are made up of resin in the format of small 0.2 mm polymer bearings charged with acid or alkaline functional groups with the ability to absorb the cations and anions in a solution.  These are replaced with other cations and anions of equivalent quantity and charge. When the resins' exchange capacity is exhausted, they are regenerated by an acid solution for the cationic resins and an alkaline solution for the anionic resins. The ion exchangers are essentially used to soften, decarbonate and demineralise water. They also enable the selective absorption of dissolved metals.