Microbial community characteristics during simultaneous nitrification-denitrification process: effect of COD/TP ratio

Zhang, J; Jia, W; Wang, R; Ngo, HH; Guo, W; Xie, H; Liang, S

Microbial community characteristics during simultaneous nitrification-denitrification process: effect of COD/TP ratio

Zhang, J Jia, W Wang, R Ngo, HH

Guo, W

Xie, H Liang, S

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Publication Type:: Journal Article
Citation:: Environmental Science and Pollution Research, 2016, 23 (3), pp. 2557 - 2565
Issue Date:: 2016-02-01

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Field	Value	Language
dc.contributor.author	Zhang, J	en_US
dc.contributor.author	Jia, W	en_US
dc.contributor.author	Wang, R	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	Xie, H	en_US
dc.contributor.author	Liang, S	en_US
dc.date.available	2020-05-25T19:07:15Z
dc.date.issued	2016-02-01	en_US
dc.identifier.citation	Environmental Science and Pollution Research, 2016, 23 (3), pp. 2557 - 2565	en_US
dc.identifier.issn	0944-1344	en_US
dc.identifier.uri	http://hdl.handle.net/10453/49963
dc.description.abstract	© 2015, Springer-Verlag Berlin Heidelberg. To evaluate the impact of chemical oxygen demand (COD)/total phosphorus (TP) ratio on microbial community characteristics during low-oxygen simultaneous nitrification and denitrification process, three anaerobic-aeration (low-oxygen) sequencing batch reactors, namely R1, R2, and R3, were performed under three different COD/TP ratios of 91.6, 40.8, and 27.6. The community structures of each reactor were analyzed via molecular biological technique. The results showed that the composition of ammonia-oxidizing bacteria (AOB) was affected, indicated by Shannon indexes of the samples from R1, R2, and R3. Nitrosomonas was identified to be the dominant AOB in all SBRs. Moreover, the copy numbers of nitrifiers were more than those of denitrifiers, and the phosphorus-accumulating organisms to glycogen-accumulating organisms ratio increased with the decrease of COD/TP ratio.	en_US
dc.relation.ispartof	Environmental Science and Pollution Research	en_US
dc.relation.isbasedon	10.1007/s11356-015-5496-1	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Oxygen	en_US
dc.subject.mesh	Nitrogen	en_US
dc.subject.mesh	Phosphorus	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Water Microbiology	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Eutrophication	en_US
dc.subject.mesh	Biological Oxygen Demand Analysis	en_US
dc.subject.mesh	Denitrification	en_US
dc.subject.mesh	Nitrification	en_US
dc.title	Microbial community characteristics during simultaneous nitrification-denitrification process: effect of COD/TP ratio	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	23	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0399 Other Chemical Sciences	en_US
utslib.for	03 Chemical Sciences	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.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	23	en_US

Abstract:

© 2015, Springer-Verlag Berlin Heidelberg. To evaluate the impact of chemical oxygen demand (COD)/total phosphorus (TP) ratio on microbial community characteristics during low-oxygen simultaneous nitrification and denitrification process, three anaerobic-aeration (low-oxygen) sequencing batch reactors, namely R1, R2, and R3, were performed under three different COD/TP ratios of 91.6, 40.8, and 27.6. The community structures of each reactor were analyzed via molecular biological technique. The results showed that the composition of ammonia-oxidizing bacteria (AOB) was affected, indicated by Shannon indexes of the samples from R1, R2, and R3. Nitrosomonas was identified to be the dominant AOB in all SBRs. Moreover, the copy numbers of nitrifiers were more than those of denitrifiers, and the phosphorus-accumulating organisms to glycogen-accumulating organisms ratio increased with the decrease of COD/TP ratio.

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http://hdl.handle.net/10453/49963