Curioustab

Home » Biochemical Engineering » Agitation and Aeration

Flooding is a condition/phenomenon which occur in a bioreactor when

The air escapes without being distributed by the agitator
The fermenter medium spills out the reactor due to foaming
The volume of foam is more than the volume of broth
None of the above

Correct Answer: The air escapes without being distributed by the agitator

← Previous Question Next Question→

More Questions from Agitation and Aeration

For aerated mixing vessels in an aqueous solution, the mass transfer coefficient (kL) co-relating power consumption (Pm) and fermenter volume (V) can be expressed as
During fermentation, the saturation concentration of oxygen was reduced from 7 ppm. to 1 ppm. Which one of the following conclusions can be drawn?
A fermentation system has a KLa of 3 s-1 and a C0* of 5 ppm of O2. If the bulk liquid is completely depleted of oxygen, then the oxygen transfer rate will be equal to
Impeller damage can be minimized by
In aerobic microorganisms cultures radial flow impellers are used because
A fermentation system has a KLa of 3 s-1 and a C0* of 5 ppm of O2. If the bulk liquid is saturated with oxygen then the oxygen transfer rate will be equal to
If the stirrer speed is too slow, bubbles will accumulate and coalescese under the impeller. This phenomenon is known as a
A reactor has a total volume of 50,000 litres. If it has a headspace volume of 10,000 litres, then volume of liquid in the reactor will be
Reynolds (Rei) number for the impeller is given by (where Di, stirrer diameter; N, stirrer speed, ρ, density of fluid and μ, viscosity of fluid)
The advantage of axial flow impellers over radial flow impellers is that axial flow impellers

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion