Bacterial community analysis in upflow multilayer anaerobic reactor (UMAR) treating high-solids organic wastes

Cho, S.-K., Jung, K.-W., Kim, D.-H., Kwon, J.-C., Ijaz, U. Z. and Shin, S. G. (2017) Bacterial community analysis in upflow multilayer anaerobic reactor (UMAR) treating high-solids organic wastes. Biotechnology Progress, 33(5), pp. 1226-1234. (doi:10.1002/btpr.2540) (PMID:28840641)

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Abstract

A novel anaerobic digestion configuration, the upflow multi-layer anaerobic reactor (UMAR), was developed to treat high-solids organic wastes. The UMAR was hypothesized to form multi-layer along depth due to the upflow plug flow; use of a recirculation system and a rotating distributor and baffles aimed to assist treating high-solids influent. The chemical oxygen demand (COD) removal efficiency and methane (CH4) production rate were 89% and 2.10 L CH4/L/day, respectively, at the peak influent COD concentration (110.4 g/L) and organic loading rate (7.5 g COD/L/day). The 454 pyrosequencing results clearly indicated heterogeneous distribution of bacterial communities at different vertical locations (upper, middle, and bottom) of the UMAR. Firmicutes was the dominant (>70%) phylum at the middle and bottom parts, while Deltaproteobacteria and Chloroflexi were only found in the upper part. Potential functions of the bacteria were discussed to speculate on their roles in the anaerobic performance of the UMAR system.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ijaz, Dr Umer Zeeshan
Authors: Cho, S.-K., Jung, K.-W., Kim, D.-H., Kwon, J.-C., Ijaz, U. Z., and Shin, S. G.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Biotechnology Progress
Publisher:Wiley
ISSN:8756-7938
ISSN (Online):1520-6033
Published Online:25 August 2017
Copyright Holders:Copyright © 2017 American Institute of Chemical Engineers
First Published:First published in Biotechnology Progress 33(5):1226–1234
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
652771Understanding microbial community through in situ environmental 'omic data synthesisUmer Zeeshan IjazNatural Environment Research Council (NERC)NE/L011956/1ENG - ENGINEERING INFRASTRUCTURE & ENVIR