Nitrous oxide emission in an aerobic granulation sequencing batch airlift reactor at ambient temperatures

Kong, Q; Zhang, J; Ngo, HH; Ni, S; Fu, R; Guo, W; Guo, N; Tian, L

Nitrous oxide emission in an aerobic granulation sequencing batch airlift reactor at ambient temperatures

Kong, Q Zhang, J Ngo, HH

Ni, S Fu, R Guo, W

Guo, N Tian, L

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Publication Type:: Journal Article
Citation:: International Biodeterioration and Biodegradation, 2013, 85 pp. 533 - 538
Issue Date:: 2013-11-01

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Field	Value	Language
dc.contributor.author	Kong, Q	en_US
dc.contributor.author	Zhang, J	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Ni, S	en_US
dc.contributor.author	Fu, R	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Guo, N	en_US
dc.contributor.author	Tian, L	en_US
dc.date.issued	2013-11-01	en_US
dc.identifier.citation	International Biodeterioration and Biodegradation, 2013, 85 pp. 533 - 538	en_US
dc.identifier.issn	0964-8305	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26512
dc.description.abstract	This study aims to investigate the nitrous oxide (N2O) emission in an aerobic granulation sequencing batch airlift reactor (SBAR) and the associated microbial community of aerobic granular sludge at ambient temperature (18±3)°C. After 48 days of operation, 1-2mm granules were obtained and excellent chemical oxygen demand (COD) and ammonium (NH4+-N) removal efficiencies were stably achieved. N2O concentration in the off gas was maximal at the beginning of the aerobic period and stabilized at a lower concentration after an initial peak. (0.60±0.17, n=3) % of the total nitrogen load to the SBAR was emitted as N2O. A dramatic change in the microbial community structure was noted between the initial seed sludge and the final mature aerobic granular sludge. Nitrosospira was identified to be the dominant ammonium oxidizing bacteria (AOB) which was attributed as the dominant source of N2O production in aerobic granular sludge by analysis of 16S rDNA sequences. © 2013 Elsevier Ltd.	en_US
dc.relation.ispartof	International Biodeterioration and Biodegradation	en_US
dc.relation.isbasedon	10.1016/j.ibiod.2013.04.005	en_US
dc.subject.classification	Biotechnology	en_US
dc.title	Nitrous oxide emission in an aerobic granulation sequencing batch airlift reactor at ambient temperatures	en_US
dc.type	Journal Article
utslib.citation.volume	85	en_US
utslib.for	0602 Ecology	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	06 Biological Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	85	en_US

Abstract:

This study aims to investigate the nitrous oxide (N2O) emission in an aerobic granulation sequencing batch airlift reactor (SBAR) and the associated microbial community of aerobic granular sludge at ambient temperature (18±3)°C. After 48 days of operation, 1-2mm granules were obtained and excellent chemical oxygen demand (COD) and ammonium (NH4+-N) removal efficiencies were stably achieved. N2O concentration in the off gas was maximal at the beginning of the aerobic period and stabilized at a lower concentration after an initial peak. (0.60±0.17, n=3) % of the total nitrogen load to the SBAR was emitted as N2O. A dramatic change in the microbial community structure was noted between the initial seed sludge and the final mature aerobic granular sludge. Nitrosospira was identified to be the dominant ammonium oxidizing bacteria (AOB) which was attributed as the dominant source of N2O production in aerobic granular sludge by analysis of 16S rDNA sequences. © 2013 Elsevier Ltd.

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http://hdl.handle.net/10453/26512