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If the F/M of a 0.44 m3/s completely mixed activated sludge plant is 0.20 mg/mg.d, the...

If the F/M of a 0.44 m3/s completely mixed activated sludge plant is 0.20 mg/mg.d, the influent BOD5 after primary settling is 180 mg/L, and the MLVSS is 3,200 mg/L, Calculate the following:(you can assume any missing data)

  • The volume of the aeration tank?
  • The HRT
  • The cell residence time
  • The recirculated sludge
  • The waste activated sludge produced each day from the plant in kg/d
  • The mass of oxygen to be supplied (kg/d).
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