Question

A fermentation system has a KLa of 3 s­¹ 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.l­¹.s­¹

c.

10 mg.l­¹.s­¹

d.

5 mg.l­¹.s­¹

Answer: (b).15 mg.l­¹.s­¹

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Q. A fermentation system has a KLa of 3 s­¹ 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

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