Question

how will you regenerate a cation exchange resin

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Answer 1

Answer:

The strong acid cation exchanger resin is regenerated with sulphuric or hydrochloric acid, which effectively strips off the calcium, magnesium and sodium from the resin, substituting hydrogen. Hydrochloric acid is typically applied at between 4 and 6%.

Explanation:

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Answer 2

Explanation:

The steps are :

1)Backwash resin bed to separate the cation from the anion resin.

2)Let the resins settle.

3)Optionally: drain the water down to the resin bed surface.

4)lnject caustic soda diluted in demineralised water.

Displace the caustic with dilution water.

Displace the caustic with dilution water.Inject acid diluted in demineralised water..