• CO₂ bubble chain
• Liquid velocity with CO₂ bubble chain
• Concentration measurements with CO₂ bubble chain
• Air bubble chain

For the experiments with CO₂, de-ionized water was used as liquid phase.

The CO₂ bubbles were generated at 2 and 4 l/h air equivalent gas flow rates.

Some of the measurement results can be accessed by clicking on the corresponding menu button.

Mean vertical and horizontal liquid velocity field in a CO₂ bubble chain for 2 l/h (a and b) and 4 l/h (d and e) air equivalent gas flow rate, and the derived vorticity for both cases (c and f).

pH change at different heights in the bubble column for a CO₂ bubble chain during the first 300 seconds at 2 l/h (a and b) and 4 l/h (c and d) air equivalent CO₂ gas flow rate.