Background In general, radial impeller has been the most widely employed for the gas-liquid
mixing process in the stirred tank. However, gas cavities are easy to form behind the …

The timely delivery of the most up‐to‐date medicines and drug products is essential for
patients throughout the world. Successful scaling of the bioreactors used within the …

Aeration and stir are vital steps in wastewater treatment plants (WWTPs) to enhance
dissolved oxygen (DO) concentration in water. In laboratories, aerated stirred reactors …

Microaerobic cultivation conditions are often beneficial for the biotechnological production of
reduced metabolites like 2, 3‐butanediol. However, due to oxygen limitation, process …

Many operations conducted in the pharmaceutical industry take place in glass-lined vessels
provided with a Retreat-Blade Impeller (RBI) and one of different types of single baffles. Little …

Bubble size is an important variable in aerated stirred tanks as it determines the surface
area available for reactions. In the bubble break-up process, impellers play a key role …

Cleaner aerobic fermentation with high efficiency is of great significance to microbial
production. In an aerobic fermentation process, gas holdup and power consumption are …

Splitting of the volumetric mass transfer coefficient into a bubble–liquid mass transfer
coefficient and interfacial area is essential to quantify the mass transfer rate of stirred tanks …

To limit the adverse effect of the fluid pressure field in high-speed gearing systems,
especially for the main reducer of helicopters, shrouds usually adopted to enclose and …

Gas-liquid mixing characteristics in fractal impeller stirred tank were experimentally
investigated by measuring multi-scale entropy (MSE), relative power demand (RPD), local …