Intensified organics and nitrogen removal in the intermittent-aerated constructed wetland using a novel sludge-ceramsite as substrate

Wu, H; Fan, J; Zhang, J; Ngo, HH; Guo, W; Liang, S; Lv, J; Lu, S; Wu, W; Wu, S

Intensified organics and nitrogen removal in the intermittent-aerated constructed wetland using a novel sludge-ceramsite as substrate

Wu, H Fan, J Zhang, J Ngo, HH

Guo, W

Liang, S Lv, J Lu, S Wu, W Wu, S

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2016, 210 pp. 101 - 107
Issue Date:: 2016-06-01

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Field	Value	Language
dc.contributor.author	Wu, H	en_US
dc.contributor.author	Fan, J	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	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Liang, S	en_US
dc.contributor.author	Lv, J	en_US
dc.contributor.author	Lu, S	en_US
dc.contributor.author	Wu, W	en_US
dc.contributor.author	Wu, S	en_US
dc.date.available	2020-05-25T19:10:09Z
dc.date.issued	2016-06-01	en_US
dc.identifier.citation	Bioresource Technology, 2016, 210 pp. 101 - 107	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/50804
dc.description.abstract	© 2016 Elsevier Ltd. In this study, a novel sludge-ceramsite was applied as main substrate in intermittent-aerated subsurface flow constructed wetlands (SSF CWs) for treating decentralized domestic wastewater, and intensified organics and nitrogen removal in different SSF CWs (with and without intermittent aeration, with and without sludge-ceramsite substrate) were evaluated. High removal of 97.2% COD, 98.9% NH4+-N and 85.8% TN were obtained simultaneously in the intermittent-aerated CW system using sludge-ceramsite substrate compared with non-aerated CWs. Moreover, results from fluorescence in situ hybridization (FISH) analysis revealed that the growth of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) in the intermittent-aerated CW system with sludge-ceramsite substrate was enhanced, thus indicating that the application of intermittent aeration and sludge-ceramsite plays an important role in nitrogen transformations. These results suggest that a combination of intermittent aeration and sludge-ceramsite substrate is reliable to enhance the treatment performance in SSF CWs.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2016.01.051	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Aluminum Silicates	en_US
dc.subject.mesh	Nitrogen	en_US
dc.subject.mesh	Organic Chemicals	en_US
dc.subject.mesh	In Situ Hybridization, Fluorescence	en_US
dc.subject.mesh	Rheology	en_US
dc.subject.mesh	Sewage	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Aerobiosis	en_US
dc.subject.mesh	Wetlands	en_US
dc.subject.mesh	Biological Oxygen Demand Analysis	en_US
dc.subject.mesh	Denitrification	en_US
dc.subject.mesh	Waste Water	en_US
dc.subject.mesh	Clay	en_US
dc.title	Intensified organics and nitrogen removal in the intermittent-aerated constructed wetland using a novel sludge-ceramsite as substrate	en_US
dc.type	Journal Article
utslib.citation.volume	210	en_US
utslib.for	090409 Wastewater Treatment Processes	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	210	en_US

Abstract:

© 2016 Elsevier Ltd. In this study, a novel sludge-ceramsite was applied as main substrate in intermittent-aerated subsurface flow constructed wetlands (SSF CWs) for treating decentralized domestic wastewater, and intensified organics and nitrogen removal in different SSF CWs (with and without intermittent aeration, with and without sludge-ceramsite substrate) were evaluated. High removal of 97.2% COD, 98.9% NH4+-N and 85.8% TN were obtained simultaneously in the intermittent-aerated CW system using sludge-ceramsite substrate compared with non-aerated CWs. Moreover, results from fluorescence in situ hybridization (FISH) analysis revealed that the growth of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) in the intermittent-aerated CW system with sludge-ceramsite substrate was enhanced, thus indicating that the application of intermittent aeration and sludge-ceramsite plays an important role in nitrogen transformations. These results suggest that a combination of intermittent aeration and sludge-ceramsite substrate is reliable to enhance the treatment performance in SSF CWs.

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http://hdl.handle.net/10453/50804