A waste water treatment plant previously used two circular clarifiers for primary settling, each 42 ft in diameter and 12 feet deep. Assume the incoming flow rate was 0.9 MGD. The maximum allowable clarifier loading rate is 600 gal/d/ft^2
A) Calculate the actual overflow rate (gal/d/ft^2) in each clarifier, assuming the flow was equally split between the two. Were they meeting the overflow rate requirement?
B)Calculate the detention time (Hr) in each clarifier.