Mean Cell Residence Time in Pumping Rate Formulas

Mean Cell Residence Time is the average time that the sludge remains in the reactor. And is denoted by θ_c. Mean Cell Residence Time is usually measured using the Day for Time. Note that the value of Mean Cell Residence Time is always positive. Typically, the value of Mean Cell Residence Time lies in the range from 5 to 15.

Formulas to find Mean Cell Residence Time in Pumping Rate

fxWasting Rate from Return LineGo

fxWasting Rate from Return Line when Concentration of Solid in Effluent is LowGo

Pumping Rate formulas that make use of Mean Cell Residence Time

fxWAS Pumping Rate from Return Line given Wasting Rate from Return LineGo

fxWAS Pumping Rate using Wasting Rate from Return Line when Concentration of Solid in Effluent is LowGo

fxWAS Pumping Rate from Aeration TankGo

List of variables in Pumping Rate formulas

fx Reactor Volume Go

fx MLSS Go

fx WAS Pumping Rate from Return Line Go

fx Sludge Concentration in Return Line Go

fx Effluent Flow Rate Go

fx Solid Concentration in Effluent Go

FAQ

What is the Mean Cell Residence Time?

Mean Cell Residence Time is the average time that the sludge remains in the reactor. Mean Cell Residence Time is usually measured using the Day for Time. Note that the value of Mean Cell Residence Time is always positive. Typically, the value of Mean Cell Residence Time lies in the range from 5 to 15.

Can the Mean Cell Residence Time be negative?

No, the Mean Cell Residence Time, measured in Time cannot be negative.

What unit is used to measure Mean Cell Residence Time?

Mean Cell Residence Time is usually measured using the Day[d] for Time. Second[d], Millisecond[d], Microsecond[d] are the few other units in which Mean Cell Residence Time can be measured.

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