

MCQOPTIONS
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1. |
The settling tank which is followed after the Trickling filter has which of the following characteristic? |
A. | tRecirculation is present |
B. | tLow suspended solids |
C. | tThe sludge from here is returned to the primary clarifier directly. |
D. | tHas high BOD |
Answer» C. tThe sludge from here is returned to the primary clarifier directly. | |