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How is zeolite/permutit regenerated for further use in water softening?
Option: 1
Treatment with sodium chloride solution.
Option: 2
Treatment with dilute acid.
Option: 3
Treatment with alkali solution.
Option: 4
Treatment with synthetic cation exchangers.
Answers (1)
During the permuted method, the zeolite permutit gets deactivated so it regenerates by passing a concentrated brine solution over it. So, calcium and magnesium ions get converted into chloride, by washing these chlorides removes and regenerates the permutit.
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