Deionization pure water systems are the process of purifying water by passing the dissolved ions contained in the water through cationic and anionic resin-containing columns.
In the EDI process, water successively passes through several cation and anion exchange membranes. At dc, the ions move towards the membranes and the cation exchange membranes are charged with minus (-) and the anion exchange membranes are charged with plus (+) to remove the anions from the water to obtain pure water. EDI is preferred in the chemical, electrical and pharmaceutical industries.
It is the process of removing the alkalinity caused by the carbonate and bicarbonate ions in the water. The high alkalinity of water disturbs the pH balance. This causes several problems.
Degasser systems are used to remove dissolved gases such as carbon dioxide and hydrogen sulfide in water by mass transfer between air and water.