Nitrogen removal via nitrite in a partial nitrification sequencing batch biofilm reactor treating high strength ammonia wastewater and its greenhouse gas emission

Wei, D; Zhang, K; Ngo, HH; Guo, W; Wang, S; Li, J; Han, F; Du, B; Wei, Q

Nitrogen removal via nitrite in a partial nitrification sequencing batch biofilm reactor treating high strength ammonia wastewater and its greenhouse gas emission

Wei, D Zhang, K Ngo, HH

Guo, W

Wang, S Li, J Han, F Du, B Wei, Q

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2017, 230 pp. 49 - 55
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Wei, D	en_US
dc.contributor.author	Zhang, K	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	Wang, S	en_US
dc.contributor.author	Li, J	en_US
dc.contributor.author	Han, F	en_US
dc.contributor.author	Du, B	en_US
dc.contributor.author	Wei, Q	en_US
dc.date.available	2020-05-25T19:19:26Z
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Bioresource Technology, 2017, 230 pp. 49 - 55	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/106304
dc.description.abstract	© 2017 Elsevier Ltd In present study, the feasibility of partial nitrification (PN) process achievement and its greenhouse gas emission were evaluated in a sequencing batch biofilm reactor (SBBR). After 90 days’ operation, the average effluent NH4+-N removal efficiency and nitrite accumulation rate of PN-SBBR were high of 98.2% and 87.6%, respectively. Both polysaccharide and protein contents were reduced in loosely bound extracellular polymeric substances (LB-EPS) and tightly bound EPS (TB-EPS) during the achievement of PN-biofilm. Excitation-emission matrix spectra implied that aromatic protein-like, tryptophan protein-like and humic acid-like substances were the main compositions of both kinds of EPS in seed sludge and PN-biofilm. According to typical cycle, the emission rate of CO2had a much higher value than that of N2O, and their total amounts per cycle were 67.7 and 16.5 mg, respectively. Free ammonia (FA) played a significant role on the inhibition activity of nitrite-oxidizing bacteria and the occurrence of nitrite accumulation.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2017.01.033	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Biofilms	en_US
dc.subject.mesh	Carbon Dioxide	en_US
dc.subject.mesh	Nitrites	en_US
dc.subject.mesh	Nitrogen	en_US
dc.subject.mesh	Ammonia	en_US
dc.subject.mesh	Nitrogen Dioxide	en_US
dc.subject.mesh	Humic Substances	en_US
dc.subject.mesh	Biopolymers	en_US
dc.subject.mesh	Spectrometry, Fluorescence	en_US
dc.subject.mesh	Bioreactors	en_US
dc.subject.mesh	Greenhouse Effect	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Time Factors	en_US
dc.subject.mesh	Nitrification	en_US
dc.subject.mesh	Batch Cell Culture Techniques	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Nitrogen removal via nitrite in a partial nitrification sequencing batch biofilm reactor treating high strength ammonia wastewater and its greenhouse gas emission	en_US
dc.type	Journal Article
utslib.citation.volume	230	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	230	en_US

Abstract:

© 2017 Elsevier Ltd In present study, the feasibility of partial nitrification (PN) process achievement and its greenhouse gas emission were evaluated in a sequencing batch biofilm reactor (SBBR). After 90 days’ operation, the average effluent NH4+-N removal efficiency and nitrite accumulation rate of PN-SBBR were high of 98.2% and 87.6%, respectively. Both polysaccharide and protein contents were reduced in loosely bound extracellular polymeric substances (LB-EPS) and tightly bound EPS (TB-EPS) during the achievement of PN-biofilm. Excitation-emission matrix spectra implied that aromatic protein-like, tryptophan protein-like and humic acid-like substances were the main compositions of both kinds of EPS in seed sludge and PN-biofilm. According to typical cycle, the emission rate of CO2had a much higher value than that of N2O, and their total amounts per cycle were 67.7 and 16.5 mg, respectively. Free ammonia (FA) played a significant role on the inhibition activity of nitrite-oxidizing bacteria and the occurrence of nitrite accumulation.

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http://hdl.handle.net/10453/106304