●   Distillation

●  Deionization

●  Membrane filtration (reverse osmosis or nano filtration)

●  Electrodyalisis or other technologies.

●  Demineralization water also known as Deionized Water, Water that has had its mineral ions removed.

●  Mineral ions such as cations of sodium, calcium, iron, copper, etc and anions such as chloride, sulphate, nitrate, etc are common ions present in Water. Deionization is a physical process which uses specially manufactured ion exchange resins which provides ion exchange site for the replacement of the mineral salts in water with water forming H+ and OH- ions. Because the majority of water impurities are dissolved salts, deionization produces a high purity water that is generally similar to distilled water, and this process is quick and without scale buildup.