Continuous mathematical models of airlift bioreactors: Families, affinity, diversity and modelling for single-substrate kinetics

• Authors: Robert Grzywacz
• Languages of publication: EN

Abstracts

EN

This paper presents a method of describing an airlift bioreactor, in which biodegradation of a carbonaceous substrate described by single-substrate kinetics takes place. Eight mathematical models based on the assumption of liquid plug flow and axial dispersion flow through the riser and the downcomer in the reactor were proposed. Additionally, the impact of degassing zone with assumed complete mixing on the obtained results was analyzed. Calculations were performed for two representative hydrodynamic regimes of reactor operation, i.e. with the presence of gas bubbles only within the riser and for complete gas circulation. The conclusions related to the apparatus design and process performance under sufficient aeration of the reaction mixture were drawn on the basis of the obtained results.

Keywords

EN

airlift biorector; single-substrate kinetics; mathematical modelling; simulation; multiphase reactors

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2012
• Volume: 33
• Issue: 2
• Pages: 291-309

Dates

published

1 - 6 - 2012

online

5 - 7 - 2012

Contributors

author

Robert Grzywacz

• Institute of Chemical and Process Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, Poland

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Identifiers

DOI

10.2478/v10176-012-0027-9