Secondary treatment of sewage - Vidyadip

MCQ

Secondary treatment of sewage

A
Removes grit and large pieces of organic matter
B
Involves shredding, churning, filtration and sedimentation
C
Does not require aeration
✓
Involves microbial digestion of organic matter

✓

Answer

Correct option: D.

Involves microbial digestion of organic matter

d
Secondary treatment of sewage involves microbial digestion of organic matter.

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