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Modelling gas–liquid VOCs transport in two-liquid phase partitioning bioreactors by S. Bordel; M. Hernandez; S. Villaverde; R. Muñoz is a Engineering article available to read on EtoBox.

What is Modelling gas–liquid VOCs transport in two-liquid phase partitioning bioreactors about?

A mechanistic model capable to accurately describe the mass transport of hexane in a two-liquid phase partitioning bioreactor (TLPB) constructed with silicone oil was developed. This work constitutes the first step in the development of simple and reliable models for the mathematical description of the off-gas treatment of volatile organic contaminants in TLPBs. The model (based on general mass balances and transport equations over off-gas rising bubbles) predicted a negative linear relationship between the fraction of organic phase and the logarithm of the pollutant fraction that remains in the gas phase. The average relative errors of the model predictions were lower than 7%. Under the tested range of operational conditions (organic phase fractions and stirring rates ranging from 5% to 30% and from 100 to 300 rpm, respectively) the maximum hexane fraction transferred from the gas to the liquid (aqueous + organic) phase increased at increasing stirring rates and silicone oil fractions up to 200 rpm and 20%, respectively. In addition, the proposed modelling approach quantified the proximity of the dispersion to thermodynamic equilibrium conditions, predicting thus the degree of mix

Who reads Modelling gas–liquid VOCs transport in two-liquid phase partitioning bioreactors?

Author

S. Bordel; M. Hernandez; S. Villaverde; R. Muñoz

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0017-9310)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)