The types of resins used in water demineralization include

 The types of resins used in water demineralization include

Strong acid cation resins

These resins can function at any pH level and are often used in water softeners and as the first deionization column in demineralizers. They can remove cations like calcium, magnesium, and sodium from water. 

Anion resins

These resins can be either strongly or weakly acidic. Strongly basic anion resins maintain their negative charge across a wide pH range, while weakly basic anion resins are neutralized at higher pH levels. 

SBA (strong base anion) resins

These resins can neutralize strong acids and convert neutral salts into their corresponding bases. They are used in most softening and full demineralization applications. 

Chelating resins

These resins are used to remove heavy metals from water. 

What Is Water Demineralization and How Does It Work?-NEWater

Ion exchange resins are small plastic beads that are made of organic polymer chains with charged functional groups. The combination of cation and anion resins can demineralize water by exchanging all cations with H+ ions and all anions with OH-. This results in chemically pure water.