Question

Which is the correct meaning of the internal feedback from the following?

(a) Effluent stream is more concentrated than in the vessel

(b) Effluent stream is less concentrated than in the vessel

(c) Effluent stream is equally concentrated with the vessel

(d) Effluent stream is not concentrated

I have been asked this question in a job interview.

I'd like to ask this question from Continuous Culture in section Microbial Growth Kinetics of Bioprocess Engineering

Answer 1

Correct option is (b) Effluent stream is less concentrated than in the vessel

To explain I would say: Internal feedback means that limiting the exit of biomass form the chemostat such that the biomass in the effluent stream is less concentrated than in the vessel.