Effect of intermittent aeration cycle on nutrient removal and microbial community in a fluidized bed reactor-membrane bioreactor combo system

Guadie, A; Xia, S; Zhang, Z; Zeleke, J; Guo, W; Ngo, HH; Hermanowicz, SW

Effect of intermittent aeration cycle on nutrient removal and microbial community in a fluidized bed reactor-membrane bioreactor combo system

Guadie, A Xia, S Zhang, Z Zeleke, J Guo, W

Ngo, HH

Hermanowicz, SW

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2014, 156 pp. 195 - 205
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Guadie, A	en_US
dc.contributor.author	Xia, S	en_US
dc.contributor.author	Zhang, Z	en_US
dc.contributor.author	Zeleke, J	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Hermanowicz, SW	en_US
dc.date.available	2020-05-25T19:12:50Z
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2014, 156 pp. 195 - 205	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/33352
dc.identifier.uri	http://hdl.handle.net/10453/37037
dc.description.abstract	Effect of intermittent aeration cycle (IAC=15/45-60/60min) on nutrient removal and microbial community structure was investigated using a novel fluidized bed reactor-membrane bioreactor (FBR-MBR) combo system. FBR alone was found more efficient for removing PO4-P (>85%) than NH4-N (<40%) and chemical oxygen demand (COD<35%). However, in the combo system, COD and NH4-N removals were almost complete (>98%). Efficient nitrification, stable mixed liquor suspended solid and reduced transmembrane pressure was also achieved. Quantitative real-time polymerase chain reaction results of total bacteria 16S rRNA gene copies per mL of mixed-liquor varied from (2.48±0.42)×109 initial to (2.74±0.10)×108, (6.27±0.16)×109 and (9.17±1.78)×109 for 15/45, 45/15 and 60/60min of IACs, respectively. The results of clone library analysis revealed that Proteobacteria (59%), Firmicutes (12%) and Bacteroidetes (11%) were the dominant bacterial group in all samples. Overall, the combo system performs optimum nutrient removal and host stable microbial communities at 45/15min of IAC. © 2014 Elsevier Ltd.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2014.01.008	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Bacteria	en_US
dc.subject.mesh	Oxygen	en_US
dc.subject.mesh	Nitrogen	en_US
dc.subject.mesh	Phosphorus	en_US
dc.subject.mesh	RNA, Ribosomal, 16S	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Biodiversity	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Aerobiosis	en_US
dc.subject.mesh	Base Sequence	en_US
dc.subject.mesh	Genes, Bacterial	en_US
dc.subject.mesh	Hydrogen-Ion Concentration	en_US
dc.subject.mesh	Molecular Sequence Data	en_US
dc.subject.mesh	Biodegradation, Environmental	en_US
dc.subject.mesh	Biofouling	en_US
dc.subject.mesh	Biological Oxygen Demand Analysis	en_US
dc.title	Effect of intermittent aeration cycle on nutrient removal and microbial community in a fluidized bed reactor-membrane bioreactor combo system	en_US
dc.type	Journal Article
utslib.citation.volume	156	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	156	en_US

Abstract:

Effect of intermittent aeration cycle (IAC=15/45-60/60min) on nutrient removal and microbial community structure was investigated using a novel fluidized bed reactor-membrane bioreactor (FBR-MBR) combo system. FBR alone was found more efficient for removing PO4-P (>85%) than NH4-N (<40%) and chemical oxygen demand (COD<35%). However, in the combo system, COD and NH4-N removals were almost complete (>98%). Efficient nitrification, stable mixed liquor suspended solid and reduced transmembrane pressure was also achieved. Quantitative real-time polymerase chain reaction results of total bacteria 16S rRNA gene copies per mL of mixed-liquor varied from (2.48±0.42)×109 initial to (2.74±0.10)×108, (6.27±0.16)×109 and (9.17±1.78)×109 for 15/45, 45/15 and 60/60min of IACs, respectively. The results of clone library analysis revealed that Proteobacteria (59%), Firmicutes (12%) and Bacteroidetes (11%) were the dominant bacterial group in all samples. Overall, the combo system performs optimum nutrient removal and host stable microbial communities at 45/15min of IAC. © 2014 Elsevier Ltd.

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http://hdl.handle.net/10453/33352