The reverse of Hydraulic Retention Time [HRT] is the ________(a) Sedimentation rate(b) Dilution rate(c) Filtration rate(d) Chemical rateI have been asked this question in my homework.I would like to ask this question from Bioreactor Configurations in division Reactor Engineering of Bioprocess Engineering

The reverse of Hydraulic Retention Time [HRT] is the ________(a) Sedim

1.	The reverse of Hydraulic Retention Time [HRT] is the ________(a) Sedimentation rate(b) Dilution rate(c) Filtration rate(d) Chemical rateI have been asked this question in my homework.I would like to ask this question from Bioreactor Configurations in division Reactor Engineering of Bioprocess Engineering
Answer» Right answer is (b) Dilution rate Easy explanation: The reverse of HRT is defined as dilution rate, for which if it is bigger than the growth rate of microbial CELLS in the REACTOR, the MICROBE will be washed out, and otherwise the microbe will be ACCUMULATED in the reactor. Either of these situations may result in the BREAKDOWN of the biological process happening in the reactor.

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