Bissoy.com
Doctors Medicines MCQs Q&A

Which of the following is a typical aeration rate for aerobic fermentation?

Which of the following is a typical aeration rate for aerobic fermentation? Correct Answer 0.5 – 2 vvm

The typical aeration rate for aerobic fermentation is 0.5 – 2.0 vvm. Here, the first v stands for volume of air in liter. The second v stands for per unit of medium and m stands for per unit time in minutes.

Related Questions

Mention if the following statement is true or false about the difference between fermentation and aerobic respiration? Statement: Fermentation accounts for only a partial breakdown of glucose whereas in aerobic respiration it is completely degraded to CO2 and H2O. 
Consider the following statements regarding contact stabilization process: 1. Primary settling tank is not required in some cases. 2. BOD removal occurs in two stages. 3. Aeration volume requirements are approximately 50% of those of a conventional – or tapered – aeration plant. 4. Returned sludge is aerated for 30 min to 90 min in sludge aeration tank. Which of the above statements are correct?
Which of the following statements are true/false?
1. A minimum rate of wages for the time spent by employees for the production of output is minimum time rate.
2. Minimum piece rate is the rate based on the quantity of the output employees have produced.
3. The guaranteed time rate is a minimum rate of remuneration to apply in the case of employees employed on piece work for the purpose of securing to such employees a minimum rate of wages on a time work basis.
4. A minimum rate of remuneration to apply in the case of employees employed on piece work for the purpose of securing to such employees a minimum rate of wages on a time work basis is overtime rate.
Assertion (A) Yeast cells have alcoholic fermentation.
Reason (R) Fermentation is an aerobic process.
Main functions of baffles in a bioreactor are
P. To prevent a vortex.
Q. To increase aeration.
R. To reduce interfacial area of oxygen transfer.
S. To reduce aeration rate.
S1: Different countries show different pattern of growth.
P: Many others have a high birth rate with a low death rate.
Q: Some have a high birth rate and still have a high death rate.
R: The developing countries show the most rapid growth rate.
S: Some others like the European nations, have a low birth rate and a low death rate.
S6: Compared to this in Europe the growth rate is low.

The Proper sequence should be:
Calculate the volume of the aeration tank required for the following data: Flow: 800 m3/d BOD: 1000 mg/L F/M ratio: 0.15(extended aeration) MLSS : 3500 mg/L
What is the value for α for mechanical aeration aeration for the following equation. α= KLA(wastewater) /KLA(Tap water)
Calculate the volume of the aeration tank required for the following data: Flow: 800 m3/d BOD: 1000 mg/L F/M ratio: 0.15(extended aeration) MLSS: 3500 mg/L
Which of the following are true with regard to anaerobic respiration in bacteria?
P. The final electron acceptor is an inorganic substance other than molecular oxygen.
Q. The number of ATP molecules produced per glucose molecule is more than that produced in aerobic respiration.
R. The number of ATP molecules produced per glucose molecule is less than that produced in aerobic respiration.
S. Only substrate level phosphorylation is used to generate ATP.