In plug flow tubular reactor the axial velocity profile on cross-section will be
Options
A. constant
B. varying with time
C. non-linear
D. power function of time
Correct Answer
constant
Fermentation Reactors problems
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1. The concentration of biomass in a continuous stirred tank reactor is 20 g dry weight per litre. What would be the concentration of biomass in the effluent?
3. Which of the following would be correct concerning the concentration of biomass (X). growth limiting substrate (S) and product (P) in a chemostat when the cells have been washed out?
Options
A. X,S and P will be zero
B. X,S and P can not be predicted for the above condition
C. X and P will be zero while S is equal to the substrate concentration in feed
Correct Answer: Fructose di-phosphate accumulation inside the cells leading to fermentation
8. Pseudomonas aeruginosa has a maximum specific growth rate of 0.8 h-1 in a medium with glucose as a growth limiting substrate. To prevent wash out, the dilution rate must be set to