Phenol degradation in a three-phase biofilm fluidized sand bed reactor

Etzensperger, M.; Thoma, S.; Petrozzi, Sergio; Dunn, Irving J.

doi:10.21256/zhaw-1699

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-1699

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Phenol degradation in a three-phase biofilm fluidized sand bed reactor
Authors:	Etzensperger, M. Thoma, S. Petrozzi, Sergio Dunn, Irving J.
DOI:	10.21256/zhaw-1699 10.1007/BF00369397
Published in:	Bioprocess and Biosystems Engineering
Volume(Issue):	4
Issue:	4
Page(s):	175
Pages to:	181
Issue Date:	1989
Publisher / Ed. Institution:	Springer
ISSN:	1615-7591 1615-7605
Language:	English
Subjects:	Dissolve oxygen; Sole carbon source; Biomass concentration; Oxygen transfer; Aeration rate
Subject (DDC):	572: Biochemistry
Abstract:	A previous three phase fluidized sand bed reactor design was improved by adding a draft tube to improve fluidization and submerged effluent tubes for sand separation. The changes had little influence on the oxygen transfer coefficients(KL a), but greatly reduced the aeration rate required for sand suspension. The resulting 12.5 dm3 reactor was operated with 1 h liquid residence time, 10.2dm3/min aeration rate, and 1.7-2.3 kg sand (0.25-0.35 mm diameter) for the degradation of phenol as sole carbon source. The KLa of 0.015 s−1 gave more than adequate oxygen transfer to support rates of 180g phenol/h · m3 and 216 g oxygen/h · m3. The biomass-sand ratios of 20-35 mg volatiles/g gave estimated biomass concentrations of 3-6 g volatiles/dm3. Offline kinetic measurements showed weak inhibition kinetics with constants ofKs=0.2 mg phenol/dm3, Ko2=0.5 mg oxygen/dm3 and KinI= 122.5 mg phenol/dm3. Very small biofilm diffusion effects were observed. Dynamic experiments demonstrated rapid response of dissolved oxygen to phenol changes below the inhibition level. Experimentally simulated continuous stagewise operation required three stages, each with 1 h residence time, for complete degradation of 300 mg phenol/dm3 · h.
Further description:	«Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)»
URI:	https://digitalcollection.zhaw.ch/handle/11475/3147
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	Life Sciences and Facility Management
Appears in collections:	Publikationen Life Sciences und Facility Management

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Etzensperger, M., Thoma, S., Petrozzi, S., & Dunn, I. J. (1989). Phenol degradation in a three-phase biofilm fluidized sand bed reactor. Bioprocess and Biosystems Engineering, 4(4), 175–181. https://doi.org/10.21256/zhaw-1699

Etzensperger, M. et al. (1989) ‘Phenol degradation in a three-phase biofilm fluidized sand bed reactor’, Bioprocess and Biosystems Engineering, 4(4), pp. 175–181. Available at: https://doi.org/10.21256/zhaw-1699.

M. Etzensperger, S. Thoma, S. Petrozzi, and I. J. Dunn, “Phenol degradation in a three-phase biofilm fluidized sand bed reactor,” Bioprocess and Biosystems Engineering, vol. 4, no. 4, pp. 175–181, 1989, doi: 10.21256/zhaw-1699.

ETZENSPERGER, M., S. THOMA, Sergio PETROZZI und Irving J. DUNN, 1989. Phenol degradation in a three-phase biofilm fluidized sand bed reactor. Bioprocess and Biosystems Engineering. 1989. Bd. 4, Nr. 4, S. 175–181. DOI 10.21256/zhaw-1699

Etzensperger, M., S. Thoma, Sergio Petrozzi, and Irving J. Dunn. 1989. “Phenol Degradation in a Three-Phase Biofilm Fluidized Sand Bed Reactor.” Bioprocess and Biosystems Engineering 4 (4): 175–81. https://doi.org/10.21256/zhaw-1699.

Etzensperger, M., et al. “Phenol Degradation in a Three-Phase Biofilm Fluidized Sand Bed Reactor.” Bioprocess and Biosystems Engineering, vol. 4, no. 4, 1989, pp. 175–81, https://doi.org/10.21256/zhaw-1699.