Deionization System
Deionized system is a type of water purification by ion exchange process. Ion-exchange is a rapid and reversible process in which impurity ions present in the water are replaced by ions released by an ion-exchange resin. The impurity ions are taken up by the resin, which must be periodically regenerated to restore it to the original ionic form.
Acid and Caustic will be required for regeneration process.
There are two types of conventional DI system: Twin Bed and Mixed Bed
Acid and Caustic will be required for regeneration process.
There are two types of conventional DI system: Twin Bed and Mixed Bed
Twin Bed
Twin-bed deionizer consists of two vessels - one containing a cation-exchange resin and the other containing an anion resin. Water flows through the cation column, whereupon all the cations are exchanged for hydrogen ions.The decationised water then flows through the anion column.
Mixed Bed
Mixed-bed deionizers the cation-exchange and anion-exchange resins are intimately mixed and contained in a single pressure vessel. The thorough mixture of cation-exchangers and anion-exchangers in a single column makes a mixed-bed deionizer equivalent to a lengthy series of two-bed plants. As a result, the water quality obtained from a mixed-bed deionizer is appreciably higher than that produced by a two-bed plant.
Advantage of Deionization System:
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Able to produce ultra pure water with finest quality |
