Modeling of Nitrous Oxide Production from Nitritation Reactors Treating Real Anaerobic Digestion Liquor
Identifieur interne : 003485 ( Ncbi/Curation ); précédent : 003484; suivant : 003486Modeling of Nitrous Oxide Production from Nitritation Reactors Treating Real Anaerobic Digestion Liquor
Auteurs : Qilin Wang [Australie] ; Bing-Jie Ni [Australie] ; Romain Lemaire [France] ; Xiaodi Hao ; Zhiguo Yuan [Australie]Source :
- Scientific Reports [ 2045-2322 ] ; 2016.
Abstract
In 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.
Url:
DOI: 10.1038/srep25336
PubMed: 27125491
PubMed Central: 4850461
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Xiaodi Hao<affiliation><nlm:aff id="a3"><institution>Key Laboratory of Urban Stormwater System and Water Environment/R&D Centre for Sustainable Wastewater Treatment (Beijing University of Civil Engineering and Architecture), Ministry of Education</institution>, Beijing 100044,<country>P.R. China</country></nlm:aff><wicri:noCountry code="nlm country">P.R. China</wicri:noCountry></affiliation>Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Modeling of Nitrous Oxide Production from Nitritation Reactors Treating Real Anaerobic Digestion Liquor</title><author><name sortKey="Wang, Qilin" sort="Wang, Qilin" uniqKey="Wang Q" first="Qilin" last="Wang">Qilin Wang</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Advanced Water Management Centre (AWMC), The University of Queensland</institution>, QLD 4072,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Ni, Bing Jie" sort="Ni, Bing Jie" uniqKey="Ni B" first="Bing-Jie" last="Ni">Bing-Jie Ni</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Advanced Water Management Centre (AWMC), The University of Queensland</institution>, QLD 4072,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Lemaire, Romain" sort="Lemaire, Romain" uniqKey="Lemaire R" first="Romain" last="Lemaire">Romain Lemaire</name><affiliation wicri:level="1"><nlm:aff id="a2"><institution>Veolia Technical and Performance Department</institution>, St-Maurice,<country>France</country></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Hao, Xiaodi" sort="Hao, Xiaodi" uniqKey="Hao X" first="Xiaodi" last="Hao">Xiaodi Hao</name><affiliation><nlm:aff id="a3"><institution>Key Laboratory of Urban Stormwater System and Water Environment/R&D Centre for Sustainable Wastewater Treatment (Beijing University of Civil Engineering and Architecture), Ministry of Education</institution>, Beijing 100044,<country>P.R. China</country></nlm:aff><wicri:noCountry code="nlm country">P.R. China</wicri:noCountry></affiliation></author><author><name sortKey="Yuan, Zhiguo" sort="Yuan, Zhiguo" uniqKey="Yuan Z" first="Zhiguo" last="Yuan">Zhiguo Yuan</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Advanced Water Management Centre (AWMC), The University of Queensland</institution>, QLD 4072,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">27125491</idno><idno type="pmc">4850461</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4850461</idno><idno type="RBID">PMC:4850461</idno><idno type="doi">10.1038/srep25336</idno><date when="2016">2016</date><idno type="wicri:Area/Pmc/Corpus">000823</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000823</idno><idno type="wicri:Area/Pmc/Curation">000822</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000822</idno><idno type="wicri:Area/Pmc/Checkpoint">000769</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000769</idno><idno type="wicri:source">PubMed</idno><idno type="wicri:Area/PubMed/Corpus">001F68</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">001F68</idno><idno type="wicri:Area/PubMed/Curation">001F43</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">001F43</idno><idno type="wicri:Area/PubMed/Checkpoint">001F43</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">001F43</idno><idno type="wicri:Area/Ncbi/Merge">003485</idno><idno type="wicri:Area/Ncbi/Curation">003485</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Modeling of Nitrous Oxide Production from Nitritation Reactors Treating Real Anaerobic Digestion Liquor</title><author><name sortKey="Wang, Qilin" sort="Wang, Qilin" uniqKey="Wang Q" first="Qilin" last="Wang">Qilin Wang</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Advanced Water Management Centre (AWMC), The University of Queensland</institution>, QLD 4072,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Ni, Bing Jie" sort="Ni, Bing Jie" uniqKey="Ni B" first="Bing-Jie" last="Ni">Bing-Jie Ni</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Advanced Water Management Centre (AWMC), The University of Queensland</institution>, QLD 4072,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Lemaire, Romain" sort="Lemaire, Romain" uniqKey="Lemaire R" first="Romain" last="Lemaire">Romain Lemaire</name><affiliation wicri:level="1"><nlm:aff id="a2"><institution>Veolia Technical and Performance Department</institution>, St-Maurice,<country>France</country></nlm:aff><country xml:lang="fr">France</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Hao, Xiaodi" sort="Hao, Xiaodi" uniqKey="Hao X" first="Xiaodi" last="Hao">Xiaodi Hao</name><affiliation><nlm:aff id="a3"><institution>Key Laboratory of Urban Stormwater System and Water Environment/R&D Centre for Sustainable Wastewater Treatment (Beijing University of Civil Engineering and Architecture), Ministry of Education</institution>, Beijing 100044,<country>P.R. China</country></nlm:aff><wicri:noCountry code="nlm country">P.R. China</wicri:noCountry></affiliation></author><author><name sortKey="Yuan, Zhiguo" sort="Yuan, Zhiguo" uniqKey="Yuan Z" first="Zhiguo" last="Yuan">Zhiguo Yuan</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Advanced Water Management Centre (AWMC), The University of Queensland</institution>, QLD 4072,<country>Australia</country></nlm:aff><country xml:lang="fr">Australie</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></analytic><series><title level="j">Scientific Reports</title><idno type="eISSN">2045-2322</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>In this work, a mathematical model including both ammonium oxidizing bacteria (AOB) and heterotrophic bacteria (HB) is constructed to predict N<sub>2</sub>O production from the nitritation systems receiving the real anaerobic digestion liquor. This is for the first time that N<sub>2</sub>O 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 N<sub>2</sub>O, ammonium, nitrite and chemical oxygen demand data well, supporting the capability of the model. Modeling results indicated that HB are the dominant contributor to N<sub>2</sub>O production in the above systems with the dissolved oxygen (DO) concentration of 0.5–1.0 mg O<sub>2</sub>/L, accounting for approximately 75% of N<sub>2</sub>O production. The modeling results also suggested that the contribution of HB to N<sub>2</sub>O production decreased with the increasing DO concentrations, from 75% at DO = 0.5 mg O<sub>2</sub>/L to 25% at DO = 7.0 mg O<sub>2</sub>/L, with a corresponding increase of the AOB contribution (from 25% to 75%). Similar to HB, the total N<sub>2</sub>O 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 O<sub>2</sub>/L.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Stocker, T F" uniqKey="Stocker T">T. F. Stocker</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ravishankara, A R" uniqKey="Ravishankara A">A. R. Ravishankara</name></author><author><name sortKey="Daniel, J S" uniqKey="Daniel J">J. S. Daniel</name></author><author><name sortKey="Portmann, R W" uniqKey="Portmann R">R. W. Portmann</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Wang, Q" uniqKey="Wang Q">Q. Wang</name></author><author><name sortKey="Jiang, G" uniqKey="Jiang G">G. Jiang</name></author><author><name sortKey="Ye, L" uniqKey="Ye L">L. Ye</name></author><author><name sortKey="Pijuan, M" uniqKey="Pijuan M">M. 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