DM Plant


• Distillation 
• Deionization 
• Membrane filtration (reverse osmosis or nanofiltration) 
• Electrodyalisis 
• Or other technologies.

Demineralized 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. De-mineralization technology is the proven process for treatment of water. Green Water Science  DM Water plant produces mineral free water by operating on the principles of ion exchange, Degasification, and polishing. Demineralized Water System have wide application in the field of steam, power, process, and cooling.

Principle :

Raw water is passed via two small polystyrene bead filled (ion exchange resins) beds. While the cations get exchanged with hydrogen ions in first bed, the anions are exchanged with hydroxyl ions, in the second one.

Process :


The following ions are widely found in raw waters :



Calcium (Ca2+)

Chloride ( Cl-)

Magnesium (Mg2+)

Bicarbonate (HCO3-)

Sodium (Na+)

Nitrate (NO3-)

Potassium (K+)

Carbonate (CO32-)