Using the assumptions given in Example $23-1,$ the rule$-$of$-$thumb values for growth constants in the example, and

the further assumption that the influent BOD was reduced by $32\%$ in the primary tank, estimate the liquid volume of a

completely mixed activated sludge aeration tank for Perryville. The design flow rate is $40,000$ m $/$d and the design influent

BOD is $188$ mg$/$L$.$ Assume an MLVSS of $2,000$ mg$/$L$.$