Pre-treatment Plant

Demineralization is also called deionization and is used to remove the salts and minerals available in water to make it drinkable and soft. Demineralization is performed with help of ION Exchange, RO, Distillation and Electro Dialysis processes. RO and Electro Dialysis are performed to remove the dissolved solids with the help of membrane process where as Ion exchange is softening process which is mostly used to remove the hard minerals such as calcium, magnesium from the water or waste water. In this process, Hydrogen (H+) and Hydroxide (OH-) are used to replace the negative and positive ions. Negatively charged ions are called anions and positively charged ions are called cations. Cations include the calcium, magnesium, sodium which is treated with acid and replenishes with H+ ions. Whereas Anions denotes chloride, sulphate, nitrate, bicarbonate etc and replenished through OH- ions. It is assumed that the treated water is already filtered but is hard enough to drink.

Applications