Biochemical Engineering Fundamentals, Part 1 - Bailey J., Ollis D. 1989

Transport processes in biotechnological systems
Other factors affecting kia'
Ionic strength

Precisely isolating the effects of the solution's ionic strength on all individual contributing factors has proven difficult. Studies of Newtonian fluids led to the following equation for O2 mass transfer in the absence of chemical reaction:

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where Vl is the liquid volume; Ра is the power required for aeration; A is the cross-sectional area of the Reactor perpendicular to the flow moving at a velocity of Fg. The parameters λ, n, and m, depending on the ionic strength

where i is the ion type and Zi is its charge) were determined empirically:

m increases monotonically from 0.35 at I = 0 to 0.39 at I ≥ 0.4. Here, Kla is expressed in s-i, Ра in FOOT-pounds force per minute, Vl in cubic feet, Fg in cubic feet per second, A in square feet, and other parameters in CGS units.



Last update: 06/08/2026

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