The detention time () of a settling tank, may be defined as the time r – McqOptions

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1.	The detention time () of a settling tank, may be defined as the time required for
A.	a particle to travel along its length
B.	a particle to travel from top surface to bottom sludge zone
C.	the flow of sewage to fill the tank
D.	none of these.
Answer» D. none of these.

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