Roles of culture media and oxygen transfer in the scale-up from shake flasks to pneumatic bioreactor of the plant growth-promoting bacterium Rhizobium phaseoli

Abstract

Modelado de la biodegradación en biorreactores de lodos de hidrocarburos totales del petróleo intemperizados en suelos y sedimentos (Biodegradation modeling of sludge bioreactors of total petroleum hydrocarbons weathering in soil and sediments)

Metabolic and kinetic changes of activated sludge because of failures in the aeration system in a WWTP

“…Dissolved oxygen is an important parameter that affect the biomass activity (García-Cabrera et al" 2021;López-Taborda et al, 2022). Oxygen is essential to complete nitrification and oxidize all organic matter, but high aeration costs have forced operators to limit oxygen or use intermittent aeration.…”

Mathematical model to estimate volumetric oxygen transfer coefficient in bioreactors using conformable calculus

“…Oxygen transfer is often considered a limiting factor in such aerobic processes, due to the low solubility of oxygen in the liquid medium (Suresh et al, 2009). The k L a of oxygen is an essential parameter to determine the efficiency of bioreactors and to obtain a successful scale-up (García-Cabrera et al, 2021;Sohail et al, 2008). It is important to mention when determining the k L a and when using this as a scaling criterion, it can have allowed error variations of up to 40% in totally aerobic systems (Linek and Vacek, 1981).…”