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dc.contributor.authorWang, Qilin
dc.contributor.authorNi, Bing-Jie
dc.contributor.authorLemaire, Romain
dc.contributor.authorHao, Xiaodi
dc.contributor.authorYuan, Zhiguo
dc.date.accessioned2017-06-13T03:18:04Z
dc.date.available2017-06-13T03:18:04Z
dc.date.issued2016
dc.identifier.issn2045-2322
dc.identifier.doi10.1038/srep25336
dc.identifier.urihttp://hdl.handle.net/10072/339753
dc.description.abstractIn this work, a mathematical model including both ammonium oxidizing bacteria (AOB) and heterotrophic bacteria (HB) is constructed to predict N2O production from the nitritation systems receiving the real anaerobic digestion liquor. This is for the first time that N2O production from such systems was modeled considering both AOB and HB. The model was calibrated and validated using experimental data from both lab- and pilot-scale nitritation reactors. The model predictions matched the dynamic N2O, ammonium, nitrite and chemical oxygen demand data well, supporting the capability of the model. Modeling results indicated that HB are the dominant contributor to N2O production in the above systems with the dissolved oxygen (DO) concentration of 0.5–1.0 mg O2/L, accounting for approximately 75% of N2O production. The modeling results also suggested that the contribution of HB to N2O production decreased with the increasing DO concentrations, from 75% at DO = 0.5 mg O2/L to 25% at DO = 7.0 mg O2/L, with a corresponding increase of the AOB contribution (from 25% to 75%). Similar to HB, the total N2O production rate also decreased dramatically from 0.65 to 0.25 mg N/L/h when DO concentration increased from 0.5 to 7.0 mg O2/L.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherNature Macmillan
dc.relation.ispartofpagefrom25336-1
dc.relation.ispartofpageto25336-8
dc.relation.ispartofjournalScientific Reports
dc.relation.ispartofvolume6
dc.subject.fieldofresearchOther physical sciences not elsewhere classified
dc.subject.fieldofresearchcode519999
dc.titleModeling of nitrous oxide production from nitritation reactors treating real anaerobic digestion liquor
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© The Author(s) 2016. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
gro.hasfulltextFull Text
gro.griffith.authorWang, Qilin


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