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Influence of very small bubbles on k L a measurement in viscous microbiological cultures
Author(s) -
Kawase Y.,
MooYoung M.
Publication year - 1987
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260300303
Subject(s) - bubble , contactor , mass transfer , gas bubble , newtonian fluid , mass transfer coefficient , thermodynamics , residence time (fluid dynamics) , mechanics , viscous liquid , chemistry , analytical chemistry (journal) , materials science , chromatography , physics , geology , power (physics) , geotechnical engineering
In gas–liquid dispersions based on viscous non‐Newtonian fluids, numerous very small bubbles are formed due to their high residence times in contacting devices such as bubble columns. The influence of these small bubbles on the measurement of the volumetric mass transfer coefficient in the contactor by the dynamic CO 2 gas analysis method is discussed. It is found that their effect on this measuring technique is insignificant compared to that when using the conventional dissolved‐oxygen technique.