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1.explain the zeolite process in softening of water

1.explain the zeolite process in softening of water

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Zeolite is a mineral which is micro- porous in nature which can be used for purification of water. It can also be used for purification of air. Highly used in industries. The composition in general for Zeolite is AlX SiY O2(X+Y).

In water softening Zeolites are used as base exchangers in contact with water containing cations. When hard water is passed through it , it removes Ca2+ and Mg2+ ions. These ions are replaced by Sodium ions. The Zeolite stops working once all the Magnesium and Calcium ions are replaced by sodium ions.

Equations for reactions can be given by

CaZe + 2NaCl ----------> Na2Ze + CaCl2

MgZe + 2NACl -----------> Na2Ze + MgCl2

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