Civil Engineering - Waste Water Engineering - Discussion
Discussion Forum : Waste Water Engineering - Section 1 (Q.No. 28)
28.
The coagulant widely used for sewage treatment, is
Discussion:
30 comments Page 2 of 3.
Achiba said:
7 years ago
Alum (aluminium) sulphate is coagulant.
Narendra said:
7 years ago
Yes, alum is used for drinking water. By here it is for sewage treatment. Then ferric salts are used.
Ningu said:
7 years ago
B is the correct Answer for sewage treatment. For water treatment Alum is used.
Rajkumar said:
7 years ago
Alum used drinking water.
Ferric chloride is for Sewage treatment.
Ferric chloride is for Sewage treatment.
Vbyu said:
7 years ago
Alum in drinking water.
Mona said:
7 years ago
Ferric chloride is the coagulant of choice for many industrial and sanitary wastewater treatment applications, due to its high efficiency, effectiveness in clarification, and utility as a sludge dewatering agent. The chemical leaves slight residual color, and offers very good turbidity removal.
Sandeep said:
8 years ago
Good explanation @Vasu Namdev.
Tapash said:
8 years ago
Alum is not widely used as it form spongy floc which settle slowly. BOD removal 80 to 90 % where as alum has 60%. Feric chloride is right answer.
MSR said:
8 years ago
Alum is widely used.
Reference SK Garg Environmental book vol II.
Reference SK Garg Environmental book vol II.
Satyam Shukla said:
8 years ago
Feric chloride is correct answer, alum is widely used in drinking water as a coagulant.
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