The sewage treatment units in which anaerobic decomposition of organic – McqOptions

MCQOPTIONS

1.	The sewage treatment units in which anaerobic decomposition of organic matter is used, arecalled
A.	Imhoff tanks
B.	Trickling filters
C.	Sludge sedimentation tanks
D.	None of these
Answer» C. Sludge sedimentation tanks

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