[Technical Column] Regeneration of Ion Exchange Resins
When the limit is reached, it becomes possible to reuse by performing a "regeneration" operation with chemicals!
Ion exchange resins are used to adsorb ions of impurities present in water through ion exchange reactions, thereby purifying the water. The capacity to adsorb these ions has its limits, but once the limit is reached, it can be reused by performing a "regeneration" operation using chemicals. This column explains "regeneration operations" and "regeneration characteristics" using diagrams. Cation exchange resins are regenerated using mineral acids such as hydrochloric acid or sulfuric acid, while anion exchange resins are regenerated using alkalis such as sodium hydroxide (caustic soda). Additionally, water softeners that use cation exchange resins are regenerated with a salt (sodium chloride) solution. [Overview] ■ Regeneration Operations ■ Regeneration Characteristics *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.
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