Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment

Ryhiner, Gerhard B.; Petrozzi, Sergio; Dunn, Irving J.

doi:10.1002/bit.260320513

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment
Authors:	Ryhiner, Gerhard B. Petrozzi, Sergio Dunn, Irving J.
DOI:	10.1002/bit.260320513
Published in:	Biotechnology & Bioengineering
Volume(Issue):	32
Issue:	5
Page(s):	677
Pages to:	688
Issue Date:	1988
Publisher / Ed. Institution:	Wiley
ISSN:	0006-3592 1097-0290
Language:	English
Subject (DDC):	572: Biochemistry
Abstract:	A biofilm fluidized sand bed column reactor (14 L) has been operated in the three-phase mode on a soluble glucose-yeast hydrolysate substrate in which the biofilm-sand phase (1-2.5 L) was suspended by direct aeration of the bed. Within two weeks a tight biofilm was formed whose activity resulted in a 90% reduction, with loads of 10.7 kg TC/m3day. The residence time was 1 h. The biofilm remained intact during operation with high residence times (up to 23 h) over three weeks. Oxygen transfer coefficients varied with aeration rate and sand quantity between 0.02 and 0.04 s−1 during non growth conditions; they decreased with increasing amounts of clean sand and were higher and relatively independent of the sand fraction with biofilm-covered sand. Aeration rates used in the 14 L reactor were 23-40 L/min (2.4-4.1 cm/s) and were sufficient to suspend 78-92% f the biofilm-covered sand. Clean sand was 50-75% suspended. Oxygen uptake rates varied between 15.4 and 23.1 mol/m3 h.
URI:	https://digitalcollection.zhaw.ch/handle/11475/3146
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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Ryhiner, G. B., Petrozzi, S., & Dunn, I. J. (1988). Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment. Biotechnology & Bioengineering, 32(5), 677–688. https://doi.org/10.1002/bit.260320513

Ryhiner, G.B., Petrozzi, S. and Dunn, I.J. (1988) ‘Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment’, Biotechnology & Bioengineering, 32(5), pp. 677–688. Available at: https://doi.org/10.1002/bit.260320513.

G. B. Ryhiner, S. Petrozzi, and I. J. Dunn, “Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment,” Biotechnology & Bioengineering, vol. 32, no. 5, pp. 677–688, 1988, doi: 10.1002/bit.260320513.

RYHINER, Gerhard B., Sergio PETROZZI und Irving J. DUNN, 1988. Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment. Biotechnology & Bioengineering. 1988. Bd. 32, Nr. 5, S. 677–688. DOI 10.1002/bit.260320513

Ryhiner, Gerhard B., Sergio Petrozzi, and Irving J. Dunn. 1988. “Operation of a Three-Phase Biofilm Fluidized Sand Bed Reactor for Aerobic Wastewater Treatment.” Biotechnology & Bioengineering 32 (5): 677–88. https://doi.org/10.1002/bit.260320513.

Ryhiner, Gerhard B., et al. “Operation of a Three-Phase Biofilm Fluidized Sand Bed Reactor for Aerobic Wastewater Treatment.” Biotechnology & Bioengineering, vol. 32, no. 5, 1988, pp. 677–88, https://doi.org/10.1002/bit.260320513.