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A hydrodynamic characteristic performance of a three phase fluidised bed bioreactor has been studied with brewery wastewater. The influence of operating parameters, such as phase hold up, phase mixing, aspect ratio and superficial gas velocity, on an aerobic biodegradation in a bioreactor of 0.16 m i.d. and 2.7 m in height, was analysed. A low-density (960 kg/m3) support particle with an internal interstice was employed. The particle and liquid loading were varied in order to determine the effect of phase hold up on bed homogeneity. The ranges in which particle loading and bed height affect fluidisation, and consequently chemical oxygen demand (COD) reduction, were determined. The distributor used in this work was designed such that fluid flow pattern similar to that of a draft tube was induced in the reactor. The low-density particles enabled cost effective operation at a relatively low gas superficial velocity (2.5 cm/s). Aspect ratio significantly influenced the overall bed homogeneity, and the optimum aspect ratio was 10, with volume of the support particles being 21% of the reactor volume.

Titel:	Brewery wastewater treatment in a fluidised bed bioreactor
Autor/in / Beteiligte Person:	OCHIENG, Aoyi ; OGADA, Tom ; SISENDA, William ; WAMBUA, Paul
Link:	E-Journal im Bestand der UB Hagen? View record from PASCAL Archive
Zeitschrift:	Journal of hazardous materials, Jg. 90 (2002), Heft 3, S. 311-321
Veröffentlichung:	Amsterdam: Elsevier, 2002
Medientyp:	academicJournal
Umfang:	print, 15 ref
ISSN:	0304-3894 (print)
Schlagwort:	Environment Environnement Pollution Sciences exactes et technologie Exact sciences and technology Sciences appliquees Applied sciences Traitement et pollution des eaux Water treatment and pollution Eaux usées Wastewaters Eaux usées industrielles Industrial wastewaters Sciences biologiques et medicales Biological and medical sciences Sciences biologiques fondamentales et appliquees. Psychologie Fundamental and applied biological sciences. Psychology Biotechnologie Biotechnology Applications et implications industrielles. Aspects économiques Industrial applications and implications. Economical aspects Environnement et pollution Environment and pollution Epuration biologique des eaux Biological treatment of waters Industries agroalimentaires Food industries Généralités General aspects Pollution et eaux usées Pollution and sludges Aérobiose Aerobiosis Bioréacteur Bioreactor Biorreactor Brasserie Brewery Cervecería DBO Biological oxygen demand DCO Chemical oxygen demand Distribution vitesse Velocity distribution Distribución velocidad Dégradation biologique Biodegradation Degradación biológica Eau usée industrielle Industrial waste water Agua servida industrial Epuration biologique Biological purification Depuración biológica Epuration eau usée Waste water purification Depuración aguas servidas Gaz liquide solide Gas liquid solid Gas líquido sólido Hydrodynamique Hydrodynamics Hidrodinámica Industrie alimentaire Food industry Industria alimenticia Industrie brassicole Brewing industry Industria cervecera Performance Rendimiento Retenue Holdup Detención Réacteur lit fluidisé Fluidized bed reactor Reactor lecho fluidizado Vitesse minimale Minimum velocity Velocidad mínima
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Chemical Engineering Department, University of Cape Town, Rondebosch 7701, Cape Town, South Africa ; Production Engineering Department, Moi University, Box 3900, Eldoret, Kenya ; Chemical and Process Engineering Department, Moi University, Box 3900, Eldoret, Kenya ; Textile Engineering Department, Moi University, Box 3900, Eldoret, Kenya Rights: Copyright 2002 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Agrifood industries ; Biotechnology ; Pollution

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Brewery wastewater treatment in a fluidised bed bioreactor