Using the following assumptions, determine the sludge age, cell wastage flow rate, and return sludge flow rate for the Turkey Run WWTP. Assume: . X = 1500 mg/L . So = 130 mg/L Four (4) Aeration tanks (Each dimension: 7.0 m W x 32.0 mLx4 m H) Q = 0.135 m3/s . Suspended solids in the effluent are negligible. Bacterial decay rate = 0.040 day-1 Yield coefficient = 0.40 Effluent BOD5 = 5.0 mg/L (soluble) Return sludge concentration = 9130 mg/L Up to first decimal points, do now include unit in your answer. = a) HRT = days b) SRT = days c) Qw = m3/d d) Qr = m3/d m