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2013 | 34 | 4 | 435-448
Article title

MATHEMATICAL MODELLING AND STATIONARY CHARACTERISTICS OF A TWO-PHASE FLUIDISED-BED BIOREACTOR WITH EXTERNAL AERATION

Content
Title variants
Languages of publication
EN
Abstracts
EN
A mathematical model for a two-phase fluidised bed bioreactor with liquid recirculation and an external aerator was proposed. A stationary nonlinear analysis of such a bioreactor for an aerobic process with double-substrate kinetics was carried out. The influences of a volumetric fraction of solid carriers in the liquid phase, the rate of active biomass transfer from the biofilm to the liquid, the concentration of carbonaceous substrate, the mean residence time of the liquid and the efficiency of the external aerator on the steady state characteristics of the bioreactor were described. A method for determination of the minimal recirculation ratio related to oxygen demand and fluidised bed conditions was presented. On the basis of the obtained results, it is possible to choose reasonable operating conditions of such plants and to determine constraints, while considering acceptable concentrations of a toxic substrate being degraded.
Publisher

Year
Volume
34
Issue
4
Pages
435-448
Physical description
Dates
published
1 - 12 - 2013
online
22 - 01 - 2014
Contributors
  • Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland, btabis@usk.pk.edu.pl
  • Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, Poland
References
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  • Schügerl K., 1997. Three-phase-biofluidization. Application of three-phase fluidization in the biotechnology - A review. Chem. Eng. Sci., 52, 3661-3668. DOI: 10.1016/S0009-2509(97)88926-9.[Crossref]
  • Seker S., Beyenal H., Salih B., Tanyolac A., 1997. Multi-substrate growth kinetics of Pseudomonas putida for phenol removal. Appl. Microbiol. Biotechnol., 47, 610-614. DOI: 10.1007/s002530050982.[Crossref]
  • Sevillano X., Isasi J. R., Penas F. J., 2008. Feasibility study of degradation of phenol in fluidized bed bioreactor with a cyclodextrin polymer as biofilm carrier. Biodegrad., 19, 589-597. DOI: 10.1007/s10532-007-9164-0.[Crossref]
  • Tang W.T., Fan L.S., 1987a. Steady state phenol degradation in a draft-tube, gas-liquid-solid fluidized-bed bioreactor. AIChE J., 33, 239-249. DOI: 10.1002/aic.690330210.[Crossref]
  • Tang W.T., Wisecarver K., Fan L.S., 1987b. Dynamics of a draft tube gas-liquid-solid fluidized bed bioreactor for phenol degradation. Chem. Eng. Sci., 42, 2123-2134. DOI: 10.1016/0009-2509(87)85033-9.[Crossref]
  • Wisecarver K.D., Fan L.S., 1989. Biological phenol degradation in a gas-liquid-solid fluidized bed reactor. Biotechnol. Bioeng., 33, 1028-1038. DOI: 10.1002/bit.260330812.[Crossref]
  • Worden R.M., Donaldson T.L., 1987. Dynamics of a biological fixed film for phenol degradation in a fluidizedbed bioreactor. Biotechnol. Bioeng., 30, 398-412. DOI: 10.1002/bit.260300311. [Crossref]
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_cpe-2013-0036
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