Modelling the clarification of lactic acid fermentation broths by cross-flow microfiltration

Citation
H. Carrere et al., Modelling the clarification of lactic acid fermentation broths by cross-flow microfiltration, J MEMBR SCI, 186(2), 2001, pp. 219-230
Citations number
17
Categorie Soggetti
Chemistry,"Chemical Engineering
Journal title
JOURNAL OF MEMBRANE SCIENCE
ISSN journal
03767388 → ACNP
Volume
186
Issue
2
Year of publication
2001
Pages
219 - 230
Database
ISI
SICI code
0376-7388(20010530)186:2<219:MTCOLA>2.0.ZU;2-A
Abstract
This work is focused on modelling microfiltration for clarifying fermentati on broths for the production of lactic acid. The hydraulic resistance-in-se ries model was used with membrane resistance, bacterial cell cake resistanc e, adsorption resistance and solute concentration polarisation resistance. Most of the model parameters were determined from independent experiments. This model was applied for microfiltrations operated either under constant transmembrane pressure or under constant permeate flux. Resistances due to adsorption and to solute concentration polarisation dominated. Bacterial ca ke resistance was found to be very low or equal to zero when microfiltratio n was below the critical flux. (C) 2001 Elsevier Science B.V. All rights re served.