What are the methods for removing permanent hardness of water?
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Some of the methods to remove hardness from waterare,
Chemical Process of Boiling Hard Water.
Adding Slaked Lime (Clark's Process)
Adding Washing Soda.
Calgon Process.
Ion Exchange Process.
Using Ion Exchange Resins.
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Answer:
these are some of the methods that is used for removing the permanent hardness of water
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