Civil Engineering - Waste Water Engineering - Discussion

Discussion Forum : Waste Water Engineering - Section 6 (Q.No. 32)
32.
The coagulant which is generally not used for treating the sewage, is
alum
ferric chloride
ferric sulphate
chlorinated copperas.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
17 comments Page 1 of 2.

Amit kumar said:   9 years ago
I think the answer is ferric chloride.

Baloch said:   9 years ago
The colloidal particles in coagulant are negatively charged and alum, [A] is not the right answer.

Vinay kumar said:   9 years ago
Then, what is the correct answer please explain anyone.

Anuj kumar said:   9 years ago
Alum is use for treating water, not for sewage.

Chintu said:   8 years ago
Alum is used for treating drinking water.

So A is right.

Vishwas said:   8 years ago
Alum is used for treating drinking water whereas ferric chloride is used for treating sewage water.

Therefore, option A is correct.

Satyam Shukla said:   8 years ago
Option A is correct. I agree.

Vasanth s d said:   8 years ago
Yes, you are correct @Vishwas.

Viru kapoor said:   7 years ago
Alum is used in water supply schemes not in sewage and waste water.

Given answer is correct.
(1)

Abhi said:   7 years ago
The given answer is right.

If alum used as a coagulant in sewerage it will produce huge amount of precipitate which will cause dispose problem, that's why alum is not used as a coagulant in sewerage.


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