Engineering, 26.03.2020 20:06 xaiverrodriguez
Determine the mean cell residence time (MCRT) for an activated sludge plant given: the aerator volume is 0.35 million gallons (MG), the final clarifier volume is 0.25 MG, the flow to the aerator is 2 million gallons per day (MGD), the waste activated sludge (WAS) flow is 0.02 MGD, the MLSS is 3000 mg/L, the waste sludge SS is 8000 mg/L, and the final effluent SS is 20 mg/L
Answers: 3
Engineering, 04.07.2019 18:10
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
Engineering, 04.07.2019 18:10
Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.
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Engineering, 04.07.2019 18:20
Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above
Answers: 1
Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
Determine the mean cell residence time (MCRT) for an activated sludge plant given: the aerator volum...
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