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Influence of very small bubbles on kLa measurement in viscous microbiological cultures

✍ Scribed by Y. Kawase; M. Moo-Young

Publisher: John Wiley and Sons
Year: 1987
Tongue: English
Weight: 222 KB
Volume: 30
Category: Article
ISSN: 0006-3592
DOI: 10.1002/bit.260300303

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✦ Synopsis

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.

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Influence of very small bubbles on the d

Influence of very small bubbles on the dynamic kLA measurement in viscous gas–liquid systems

✍ J. J. Heijnen; K. Van't Riet; A. J. Wolthuis 📂 Article 📅 1980 🏛 John Wiley and Sons 🌐 English ⚖ 443 KB 👁 2 views

## Abstract Experiments reveal a fraction of tiny bubbles (≪1 mm) in viscous gas‐liquid systems. It is plausible that the oxygen tension is these bubbles will be in equilibrium with that in the liquid within seconds. This means that, as regards to such oxygen concentration changes as occur on __k__