Dealkalization Ion Exchange Resin

Lanlang provides several types of resins for dealkalization including strong base anion resins, weak acid cation resins and strong acid cation resins.

Dealkalization by anion exchange resins is accomplished by the exchange of chloride for bicarbonate and carbonate alkalinity, thus the finished water is enriched with chlorides. Exhausted resin is regenerated with sodium chloride, much like a water softener.

Dealkalization by weak and strong cation resins is accomplished by exchange of hydrogen ion for hardness ions (and sodium ion in the case of a hydrogen form strong cation resin). Hydrogen ion combines with alkalinity to form carbon dioxide which is removed by degasification in a second treatment step.