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C. Haringa

7 records found

Effect of Salts on Gas Bubble Sizes

Investigating the Role of Ion Redistribution Along the G/L-Interface to Explain Bubble Coalescence Inhibition in Bubble Columns

Recently, a mechanism has been proposed to describe how salts do (not) contribute to bubble coalescence inhibition. This is done by considering how ions (re)distribute themselves along the G/L-interface, expressing this as a Gibbs-Marangoni pressure. The thesis’ goal is to invest ...

A Study on Oxygen Mass Transfer

The Role of Fermentation Products in Stirred Tank Reactors

The oxygen mass transfer coefficient, kLa, is a critical parameter in bioprocess performance, influencing the design of stirred tank reactors. During a fermentation process, the behavior of bubbles and the kLa can be effected by various components present in the broth. This study ...

Bubble property determination

Comparison between bubble data from a fibre probe, and a camera

An optical fibre probe was tested in liquids with biotechnologically relevant compounds, to determine if any limits arise in bubble property determination due to these compounds. The data from this fibre probe was compared to the data from a camera for which an image processing a ...
Understanding the dynamics of bubbles in broth is crucial for various biotechnological processes conducted in bubble columns, such as the manufacturing of cultured meat. In this study, the drag coefficient of individual bubbles ascending in sodium chloride, sodium sulphate, album ...