[Solved] Which of the following reasons is correct with respect to the need of providing baffle walls?

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Q.	Which of the following reasons is correct with respect to the need of providing baffle walls?
A.	mixing of scum and wastewater
B.	settling of heavy particles
C.	increase velocity of the liquid
D.	prevent scum and solids from escaping
Answer» D. prevent scum and solids from escaping
Explanation: the baffle or the separation between the chambers is to prevent scum and solids from escaping with the effluent. a t- shaped outlet pipe, the lower arm of which divides 30 cm below water level, further reduces the scum and solids that are discharged.

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