Volume of an activated sludge tank
12. The total design flow is 15,000 m3/day. The NPDES
limit is 25/30. Assume that the waste strength is 170 mg/L BOD
after primary clarification. Y = 0.55
kg/kg, X=MLSS = 2200 mg/L, XR = 6,600 mg/L, Recycle (R)
= 0.25, kd = 0.05 day -1, qc = 8
days
Make whatever other assumptions are needed. The volume the tank
in m3 will be?