Biochemical Engineering | Fermentation Kinetics

In an airlift bioreactor, the air sparging region is called

Byadmin July 20, 2022

Question: In an airlift bioreactor, the air sparging region is called
[A].

downcomer

[B].

disengagement zone

[C].

air riser

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Agitation And Aeration | Biochemical Engineering

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

Question: 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
[A].

zero
[B].
15 mg.l-1.s-1
[C].
10 mg.l-1.s-1
[D].
5 mg.l-1.s-1

Answer: Option B

Explanation:

No answer description available for this question.

Read More 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
Agitation And Aeration | Biochemical Engineering

Which of the following impeller is used in situation where strong vertical currents are desirable for suspending heavily particles?

Question: Which of the following impeller is used in situation where strong vertical currents are desirable for suspending heavily particles?
[A].

Propeller
[B].
Paddle
[C].
Turbine
[D].
None of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More Which of the following impeller is used in situation where strong vertical currents are desirable for suspending heavily particles?
Biochemical Engineering | Water Treatment

Coliform bacteria in water is an indication of the presence of

Question: Coliform bacteria in water is an indication of the presence of
[A].

radioactive wastes
[B].
excess fertilizer
[C].
decaying animals and plants
[D].
human feces

Answer: Option D

Explanation:

No answer description available for this question.

Read More Coliform bacteria in water is an indication of the presence of
Biochemical Engineering | Fermentation Kinetics

An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called

Question: An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called
[A].

manostat
[B].
chemostat
[C].
turbidostat
[D].
culturostat

Answer: Option B

Explanation:

No answer description available for this question.

Read More An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called
Biochemical Engineering | Fermentation Kinetics

A functional relationship between the specific growth rate and essential compounds concentration was proposed by Monod in

Question: A functional relationship between the specific growth rate and essential compounds concentration was proposed by Monod in
[A].

1958
[B].
1946
[C].
1942
[D].
1950

Answer: Option C

Explanation:

No answer description available for this question.

Read More A functional relationship between the specific growth rate and essential compounds concentration was proposed by Monod in
Biochemical Engineering | Fermentation Kinetics

In wastewater treatment, which bioreactor is generally used?

Question: In wastewater treatment, which bioreactor is generally used?
[A].

Plug flow reactor
[B].
Trickle bed reactor
[C].
Tower fermentor
[D].
CSTR

Answer: Option B

Explanation:

No answer description available for this question.

Read More In wastewater treatment, which bioreactor is generally used?

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