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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/206

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Title: The performance of a phase separated granular bed bioreactor treating brewery wastewater
Authors: Baloch, M. I.
Akunna, Joseph C.
Collier, Phillip J.
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
Keywords: Granular bed baffled reactor
Phase separation
Anaerobic granular sludge
Acidogenesis
Methanogenesis
Brewery wastewater
Issue Date: Jul-2007
Publisher: Elsevier Science B.V., Amsterdam
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)Elsevier Science B.V., Amsterdam, available from DOI: 10.1016/j.biortech.2006.06.014
Citation: Baloch, M. I., Akunna, J. C. and Collier, P. J. 2007. The performance of a phase separated granular bed bioreactor treating brewery wastewater. Bioresource Technology. 98(9): pp.1849-1855. [Online] Available from: DOI: 10.1016/j.biortech.2006.06.014
Abstract: This study presents the performance characteristics of a plug flow phase separated anaerobic granular bed baffled reactor (GRABBR) fed with brewery wastewater at various operating conditions. The reactor achieved chemical oxygen demand (COD) removal of 93–96% with high methane production when operated at organic loading rates (OLRs) of 2.16–13.38 kg COD m−3 d−1. The reactor configuration and microbial environment encouraged the acidogenic dominant zone to produce intermediate products suitable for degradation in the predominantly methanogenic zone. Noticeable phase separation between acidogenesis and methanogenesis mainly occurred at high OLR, involving a greater number of compartments to contribute to wastewater treatment. The highly active nature and good settling characteristics of methanogenic granular sludge offered high biomass retention and enhanced methanogenic activities within the system. The granular structure in the acidogenic dominant zone of the GRABBR was susceptible to disintegration and flotation. Methanogenic granular sludge was a multi-layered structure with Methanosaeta-like organisms dominant in the core
URI: http://hdl.handle.net/10373/206
ISSN: 0960-8524
Appears in Collections:Science Engineering & Technology Collection

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