System performance and microbial community succession in a partial nitrification biofilm reactor in response to salinity stress

Li, J; Ye, W; Wei, D; Ngo, HH; Guo, W; Qiao, Y; Xu, W; Du, B; Wei, Q

System performance and microbial community succession in a partial nitrification biofilm reactor in response to salinity stress

Li, J Ye, W Wei, D Ngo, HH

Guo, W

Qiao, Y Xu, W Du, B Wei, Q

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2018, 270 pp. 512 - 518
Issue Date:: 2018-12-01

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Field	Value	Language
dc.contributor.author	Li, J	en_US
dc.contributor.author	Ye, W	en_US
dc.contributor.author	Wei, D	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Qiao, Y	en_US
dc.contributor.author	Xu, W	en_US
dc.contributor.author	Du, B	en_US
dc.contributor.author	Wei, Q	en_US
dc.date.available	2020-12-31T18:03:51Z
dc.date.issued	2018-12-01	en_US
dc.identifier.citation	Bioresource Technology, 2018, 270 pp. 512 - 518	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/128036
dc.description.abstract	© 2018 Elsevier Ltd The system performance and microbial community succession in a partial nitrification biofilm reactor in response to salinity stress was conducted. It was found that the NH 4+ -N removal efficiency decreased from 98.4% to 42.0% after salinity stress increased to 20 g/L. Specific oxygen uptake rates suggested that AOB activity was more sensitive to the stress of salinity than that of NOB. Protein and polysaccharides contents showed an increasing tendency in both LB-EPS and TB-EPS after the salinity exposure. Moreover, EEM results indicated that protein-like substances were the main component in LB-EPS and TB-EPS as self-protection in response to salinity stress. Additionally, humic acid-like substances were identified as the main component in the effluent organic matter (EfOM) of partial nitrification biofilm, whereas fulvic acid-like substances were detected at 20 g/L salinity stress. Microbial community analysis found that Nitrosomonas as representative species of AOB were significantly inhibited under high salinity condition.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2018.09.068	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Biofilms	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Salinity	en_US
dc.subject.mesh	Nitrification	en_US
dc.subject.mesh	Microbiota	en_US
dc.subject.mesh	Salt Stress	en_US
dc.title	System performance and microbial community succession in a partial nitrification biofilm reactor in response to salinity stress	en_US
dc.type	Journal Article
utslib.citation.volume	270	en_US
utslib.for	0904 Chemical Engineering	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	270	en_US

Abstract:

© 2018 Elsevier Ltd The system performance and microbial community succession in a partial nitrification biofilm reactor in response to salinity stress was conducted. It was found that the NH 4+ -N removal efficiency decreased from 98.4% to 42.0% after salinity stress increased to 20 g/L. Specific oxygen uptake rates suggested that AOB activity was more sensitive to the stress of salinity than that of NOB. Protein and polysaccharides contents showed an increasing tendency in both LB-EPS and TB-EPS after the salinity exposure. Moreover, EEM results indicated that protein-like substances were the main component in LB-EPS and TB-EPS as self-protection in response to salinity stress. Additionally, humic acid-like substances were identified as the main component in the effluent organic matter (EfOM) of partial nitrification biofilm, whereas fulvic acid-like substances were detected at 20 g/L salinity stress. Microbial community analysis found that Nitrosomonas as representative species of AOB were significantly inhibited under high salinity condition.

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http://hdl.handle.net/10453/128036