Biochemical Engineering - Agitation and Aeration - Discussion


In a two-phase system where the continuous phase remains in place, the gas hold up can be expressed as (where Vs and Vt are the superficial gas velocity and bubble rise velocity)

[A]. H = Vs/(Vs-Vt)
[B]. H = Vs/(Vs+ Vt)
[C]. H = Vs/(Vs.Vt)
[D]. H = (Vs+Vt)/Vs

Answer: Option B


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