The role of hydrogenotrophic methanogens in an acidogenic reactor

A laboratory-scale acidogenic anaerobic sequencing batch reactor was set up to test the effect of pH change on microbial community structure of the reactor biomass and process performance. No immediate performance change on acidogenesis was observed after the pH change. However, as the hydrogenotrop...

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Main Authors:	Huang, Wenhai, Wang, Zhenyu, Zhou, Yan, Ng, Wun Jern
Other Authors:	School of Civil and Environmental Engineering
Format:	Article
Language:	English
Published:	2015
Subjects:	DRNTU::Engineering::Environmental engineering::Water treatment
Online Access:	https://hdl.handle.net/10356/101186 http://hdl.handle.net/10220/38692
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Institution:	Nanyang Technological University
Language:	English

id	sg-ntu-dr.10356-101186
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spelling	sg-ntu-dr.10356-1011862020-09-26T22:03:30Z The role of hydrogenotrophic methanogens in an acidogenic reactor Huang, Wenhai Wang, Zhenyu Zhou, Yan Ng, Wun Jern School of Civil and Environmental Engineering National Environment Agency of Singapore Nanyang Environment and Water Research Institute DRNTU::Engineering::Environmental engineering::Water treatment A laboratory-scale acidogenic anaerobic sequencing batch reactor was set up to test the effect of pH change on microbial community structure of the reactor biomass and process performance. No immediate performance change on acidogenesis was observed after the pH change. However, as the hydrogenotrophic methanogen population decreased, hydrogen content in biogas increased followed by a sharp decrease in volatile fatty acids (VFAs) with acetic acid (HAc) in particular. Recovery of reactor performance following pH correction was only apparent after recovery of hydrogenotrophic methanogen population. These suggested hydrogenotrophic methanogens played a very important role in performance of the acidogenic process. Accepted version 2015-09-15T06:08:23Z 2019-12-06T20:34:56Z 2015-09-15T06:08:23Z 2019-12-06T20:34:56Z 2014 2014 Journal Article Huang, W., Wang, Z., Zhou, Y., & Ng, W. J. (2015). The role of hydrogenotrophic methanogens in an acidogenic reactor. Chemosphere, 140, 40-46. 0045-6535 https://hdl.handle.net/10356/101186 http://hdl.handle.net/10220/38692 10.1016/j.chemosphere.2014.10.047 en Chemosphere © 2014 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Chemosphere, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.chemosphere.2014.10.047]. 28 p. application/pdf
institution	Nanyang Technological University
building	NTU Library
country	Singapore
collection	DR-NTU
language	English
topic	DRNTU::Engineering::Environmental engineering::Water treatment
spellingShingle	DRNTU::Engineering::Environmental engineering::Water treatment Huang, Wenhai Wang, Zhenyu Zhou, Yan Ng, Wun Jern The role of hydrogenotrophic methanogens in an acidogenic reactor
description	A laboratory-scale acidogenic anaerobic sequencing batch reactor was set up to test the effect of pH change on microbial community structure of the reactor biomass and process performance. No immediate performance change on acidogenesis was observed after the pH change. However, as the hydrogenotrophic methanogen population decreased, hydrogen content in biogas increased followed by a sharp decrease in volatile fatty acids (VFAs) with acetic acid (HAc) in particular. Recovery of reactor performance following pH correction was only apparent after recovery of hydrogenotrophic methanogen population. These suggested hydrogenotrophic methanogens played a very important role in performance of the acidogenic process.
author2	School of Civil and Environmental Engineering
author_facet	School of Civil and Environmental Engineering Huang, Wenhai Wang, Zhenyu Zhou, Yan Ng, Wun Jern
format	Article
author	Huang, Wenhai Wang, Zhenyu Zhou, Yan Ng, Wun Jern
author_sort	Huang, Wenhai
title	The role of hydrogenotrophic methanogens in an acidogenic reactor
title_short	The role of hydrogenotrophic methanogens in an acidogenic reactor
title_full	The role of hydrogenotrophic methanogens in an acidogenic reactor
title_fullStr	The role of hydrogenotrophic methanogens in an acidogenic reactor
title_full_unstemmed	The role of hydrogenotrophic methanogens in an acidogenic reactor
title_sort	role of hydrogenotrophic methanogens in an acidogenic reactor
publishDate	2015
url	https://hdl.handle.net/10356/101186 http://hdl.handle.net/10220/38692
_version_	1681059600800940032

The role of hydrogenotrophic methanogens in an acidogenic reactor

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