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10.4. A lethal agent (KCN) was added to the fermentation medium in the presence of aeration using diffusors. Dissolved oxygen (DO) concentration increased with time as follows when N 100 rev/min: t( min) DO (mg/L) 1 2 3 5 7 10 1 1.93 2.7 3.36 4.4 5.1 5.4 5.9 Saturation D0 concentration in the fermentation medium is 7.0 mg/L. a. Determine oxygen transfer coefficient ka. b. Determine kļa when N; is increased to 200 rev/min.

10.4. A lethal agent (KCN) was added to the fermentation medium in the presence of aeration using diffusors. Dissolved oxygen (DO) concentration increased with time as follows when N 100 rev/min: t( min) DO (mg/L) 1 2 3 5 7 10 1 1.93 2.7 3.36 4.4 5.1 5.4 5.9 Saturation D0 concentration in the fermentation medium is 7.0 mg/L. a. Determine oxygen transfer coefficient ka. b. Determine kļa when N; is increased to 200 rev/min.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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10.4. A lethal agent (KCN) was added to the fermentation medium in the presence of aeration using diffusors. Dissolved oxygen (DO) concentration increased with time as follows when N 100 rev/min: t( min) DO (mg/L) 1 2 3 5 7 10 1 1.93 2.7 3.36 4.4 5.1 5.4 5.9 Saturation D0 concentration in the fermentation medium is 7.0 mg/L. a. Determine oxygen transfer coefficient k,a. b. Determine kļa when N; is increased to 200 rev/min.
Transcribed Image Text:10.4. A lethal agent (KCN) was added to the fermentation medium in the presence of aeration using diffusors. Dissolved oxygen (DO) concentration increased with time as follows when N 100 rev/min: t( min) DO (mg/L) 1 2 3 5 7 10 1 1.93 2.7 3.36 4.4 5.1 5.4 5.9 Saturation D0 concentration in the fermentation medium is 7.0 mg/L. a. Determine oxygen transfer coefficient k,a. b. Determine kļa when N; is increased to 200 rev/min.
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