The keynote lecture by Dr. Yan Jin with the title "Direct numerical simulation of bubble collision, bounce and coalescence in bubble-induced turbulence" focused on the coalescence of gas bubbles while the lecture of Christian Weiland with the title "Development and implementation of a Lagrangian model to estimate the bubble breakup in bubbly flow" observed the breakup of those.
Prof. Michael Schlüter's presentation "Importance of bubble size distribution and gas hold up heterogeneities on scale up of gas-liquid reactors" has given an insight why both aforementioned phenomena are important for processes carried out in multiphase reactors.
Another talk was given spontaneously by Christian Weiland on the second morning. This presentation wore the title "Experimental quantification of local counterdiffusion effects on the gas-liquid mass transfer performance on a microscale" and featured the work of Lotta Kursula related to the project "Fine Bubbles for Biocatalytic Processes: Microscale Phenomena and Novel Applications" funded by the German Research Foundation (DFG).