Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 5 (Q.No. 21)
21.
Permanent hardness of water can be removed by
adding alum
adding lime
adding chlorine
boiling
zeolite process.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Hayat said:   6 years ago
Lime also remove the hardness of water but permanently remove may be zeolite.

Anomie said:   6 years ago
ION exchange process or zeloite process.

Preeti said:   6 years ago
@Nayan.

It's Ion-exchange resin, (zeolite) exchanges one ion from the water being treated for another ion that is in the resin (sodium is one component of softening salt, with chlorine being the other). Zeolite resin exchanges sodium for calcium and magnesium.

Nayan said:   7 years ago
What is zeolite process?

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