Chemical Engineering - Chemical Process - Discussion

Discussion Forum : Chemical Process - Section 1 (Q.No. 44)
44.
Very fine suspended and colloidal impurities are removed from water by a process called
sedimentation
coagulation
disinfection
softening
Answer: Option
Explanation:
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Discussion:
1 comments Page 1 of 1.

KRR said:   4 years ago
Suspended particles cannot be removed completely by plain settling. Chemicals (coagulants) are added to the water to bring the nonsettling particles together into larger, heavier masses of solids called flocculants. Aluminum sulfate (alum) is the most common coagulant used for water purification.

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