What is permutit? How do you remove permanent hardness of water by permutit or (ion exchange) method
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The permutit method is a simple filtration method. In this method zeolite that is also known as natural sand is used to filter the hard water. Hard water is passed through sodium permutit. Permutit is a hydrated sodium alumina-orthosilicate. The formula of permutit is Na2Al2Si2O8.
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