Comparison of different two-pathway models for describing the combined effect of DO and nitrite on the nitrous oxide production by ammonia-oxidizing bacteria

Lang, L; Pocquet, M; Ni, BJ; Yuan, Z; Spérandio, M

Comparison of different two-pathway models for describing the combined effect of DO and nitrite on the nitrous oxide production by ammonia-oxidizing bacteria

Lang, L Pocquet, M Ni, BJ

Yuan, Z Spérandio, M

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Publication Type:: Journal Article
Citation:: Water Science and Technology, 2017, 75 (3), pp. 491 - 500
Issue Date:: 2017-02-01

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Field	Value	Language
dc.contributor.author	Lang, L	en_US
dc.contributor.author	Pocquet, M	en_US
dc.contributor.author	Ni, BJ https://orcid.org/0000-0002-1129-7837	en_US
dc.contributor.author	Yuan, Z	en_US
dc.contributor.author	Spérandio, M	en_US
dc.date.issued	2017-02-01	en_US
dc.identifier.citation	Water Science and Technology, 2017, 75 (3), pp. 491 - 500	en_US
dc.identifier.issn	0273-1223	en_US
dc.identifier.uri	http://hdl.handle.net/10453/126664
dc.description.abstract	© IWA Publishing 2017. The aim of this work is to compare the capability of two recently proposed two-pathway models for predicting nitrous oxide (N2O) production by ammonia-oxidizing bacteria (AOB) for varying ranges of dissolved oxygen (DO) and nitrite. The first model includes the electron carriers whereas the second model is based on direct coupling of electron donors and acceptors. Simulations are confronted to extensive sets of experiments (43 batches) from different studies with three different microbial systems. Despite their different mathematical structures, both models could well and similarly describe the combined effect of DO and nitrite on N2O production rate and emission factor. The model-predicted contributions for nitrifier denitrification pathway and hydroxylamine pathway also matched well with the available isotopic measurements. Based on sensitivity analysis, calibration procedures are described and discussed for facilitating the future use of those models.	en_US
dc.relation.ispartof	Water Science and Technology	en_US
dc.relation.isbasedon	10.2166/wst.2016.389	en_US
dc.subject.classification	Environmental Engineering	en_US
dc.subject.mesh	Betaproteobacteria	en_US
dc.subject.mesh	Nitrites	en_US
dc.subject.mesh	Oxygen	en_US
dc.subject.mesh	Ammonia	en_US
dc.subject.mesh	Nitrous Oxide	en_US
dc.subject.mesh	Hydroxylamine	en_US
dc.subject.mesh	Biomass	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Oxidation-Reduction	en_US
dc.subject.mesh	Models, Theoretical	en_US
dc.subject.mesh	Denitrification	en_US
dc.title	Comparison of different two-pathway models for describing the combined effect of DO and nitrite on the nitrous oxide production by ammonia-oxidizing bacteria	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	75	en_US
utslib.for	0602 Ecology	en_US
utslib.for	MD Multidisciplinary	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	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	75	en_US

Abstract:

© IWA Publishing 2017. The aim of this work is to compare the capability of two recently proposed two-pathway models for predicting nitrous oxide (N2O) production by ammonia-oxidizing bacteria (AOB) for varying ranges of dissolved oxygen (DO) and nitrite. The first model includes the electron carriers whereas the second model is based on direct coupling of electron donors and acceptors. Simulations are confronted to extensive sets of experiments (43 batches) from different studies with three different microbial systems. Despite their different mathematical structures, both models could well and similarly describe the combined effect of DO and nitrite on N2O production rate and emission factor. The model-predicted contributions for nitrifier denitrification pathway and hydroxylamine pathway also matched well with the available isotopic measurements. Based on sensitivity analysis, calibration procedures are described and discussed for facilitating the future use of those models.

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http://hdl.handle.net/10453/126664