Chemical Engineering - Chemical Process - Discussion

Discussion Forum : Chemical Process - Section 4 (Q.No. 15)

Chemical Process

15.

Presence of carbonaceous matter in the sewage

causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures.

reduces sulphate ions to sulphides causing obnoxious smell.

increases the quantity of chlorine used for its purification.

all (a), (b) and (c).

Answer: Option

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