WATER DEIONIZATION SYSTEM

How does a water deionization system work?

Water deionization is a treatment process that involves removing dissolved inorganic ions from water, such as metal cations and salt anions. This process makes it possible to obtain water with very high chemical purity and very low electrical conductivity. Deionized water is widely used in laboratories, the pharmaceutical and electronics industries, as well as in many technological processes requiring high-quality water.

Raw water supply:

The process begins with supplying raw water to the deionization system. Most often, this is water that has undergone preliminary treatment, such as mechanical filtration, softening, or reverse osmosis.

Cation removal:

In the first stage, water flows through a cation exchange resin, which removes positively charged ions such as Ca??, Mg??, Na?, Fe??. These ions are exchanged for hydrogen ions H?, which pass into the solution.

Anion removal:

Next, the water passes through an anion exchange resin, which removes negatively charged ions such as Cl?, SO???, NO??, HCO??. In their place, hydroxide ions OH? are released into the water. Formation of pure water: The H? and OH? ions produced during ion exchange combine with each other to form water molecules H?O. As a result, nearly all dissolved salts and other ionic compounds are removed from the water.

Application of deionized water:

Water obtained through the deionization process is used in laboratory analyses, pharmaceutical production, the electronics industry, and in installations requiring water with a very low ion content. It is also often the final stage of purification in high-purity water treatment systems.