Question

The main function(s) of a draft tube in an air lift fermenter is/are to

a.

increase the solubility of oxygen

b.

distribute shear forces throughout the reactor and minimise bubble coalescence

c.

concentrate shear forces around the sparger

d.

concentrate shear forces near the disengagement zone

Answer: (b).distribute shear forces throughout the reactor and minimise bubble coalescence

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Q. The main function(s) of a draft tube in an air lift fermenter is/are to

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