Which of the enzyme combination is commercially used for the removal of oxygen?

Question: Axial flow impellers
[A].

provide high shear conditions for breaking up bubbles

[B].

provide low shear conditions and are suited for use in shear sensitive procesess

[C].

provide direct flow towards the walls of the reactor

[D].

none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Question: A flooded impeller will lead to poor oxygen transfer rates because
[A].

bubbles tend to coalesce under the impeller

[B].

bubbles tend to break down too rapidly under high shear conditions

[C].

bubbles tend to move too quickly through the bulk liquid

[D].

the cells clog up the surface of the bubble

Answer: Option A

Explanation:

No answer description available for this question.

Question: Bioreactors, where vortex is formed, another dimensionless number, __________ is useful.
[A].

Stanton

[B].

Rayleigh

[C].

Bond

[D].

Froude

Answer: Option D

Explanation:

No answer description available for this question.