{ "dc.contributor.author": "Rodríguez-Caballero, Adrián" , "dc.contributor.author": "Pijuan i Vilalta, Maite" , "dc.date.accessioned": "2016-07-19T07:13:51Z" , "dc.date.available": "2016-07-19T07:13:51Z" , "dc.date.issued": "2013-06-01" , "dc.identifier.issn": "0043-1354" , "dc.identifier.uri": "http://hdl.handle.net/10256/12576" , "dc.description.abstract": "A sequencing batch reactor (SBR) was enriched with ammonia oxidizing bacteria (AOB) in order to treat synthetic reject wastewater (1g NH4+-N/L). Partial nitrification was successfully achieved at a NH4+-N to NO2--N conversion rate of 98%. The emission dynamics of nitrous oxide (N2O) and nitric oxide (NO) were monitored during normal operation and under 3 different cycle configurations. An N2O peak was detected during the first 5min of the cycle in all cases which corresponded to 60-80% of the total N2O emitted. When anoxic phases were introduced, N2O emissions were minimized but NO increased. Factors affecting the initial N2O peak were studied in a set of individual experiments. It was concluded that most of this N2O originated during settling due to biological reactions. Complete oxidation of NH4+ (or most likely hydroxylamine) as a result of sufficient aeration time can be a minimization strategy for N2O emissions in partial nitrification systems" , "dc.description.sponsorship": "This study was funded by the Spanish Government, Ministerio de Economı´a y Competitividad (project CTM 2011-27163) and the European Commission FP7-PEOPLE-2011-CIG 303946 project. M. Pijuan also acknowledges the Ramon y Cajal research fellowship (RYC-2009-04959) provided by the Spanish Government" , "dc.format.mimetype": "application/pdf" , "dc.language.iso": "eng" , "dc.publisher": "Elsevier" , "dc.relation": "info:eu-repo/grantAgreement/MICINN//CTM2011-27163/ES/GASES DE EFECTO INVERNADERO EN LOS SISTEMAS DE TRANSPORTE Y TRATAMIENTO DE AGUAS RESIDUALES: EVALUACION DE LAS EMISIONES/" , "dc.relation": "info:eu-repo/grantAgreement/MICINN//RYC-2009-04959/ES/RYC-2009-04959/" , "dc.relation.isformatof": "Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.watres.2013.03.019" , "dc.relation.ispartof": "© Water Research, 2013, vol. 47, núm. 9, p. 3131-3140" , "dc.relation.ispartofseries": "Articles publicats (ICRA)" , "dc.rights": "Tots els drets reservats" , "dc.subject": "Nitrificació" , "dc.subject": "Nitrification" , "dc.subject": "Aigües residuals -- Anàlisi" , "dc.subject": "Sewage -- nalysis" , "dc.subject": "Bioreactors" , "dc.subject": "Aigües residuals -- Depuració -- Oxidació" , "dc.subject": "Sewage -- Purification -- Oxidation" , "dc.title": "N2O and NO emissions from a partial nitrification sequencing batch reactor: Exploring dynamics, sources and minimization mechanisms" , "dc.type": "info:eu-repo/semantics/article" , "dc.rights.accessRights": "info:eu-repo/semantics/embargoedAccess" , "dc.embargo.terms": "Cap" , "dc.relation.projectID": "info:eu-repo/grantAgreement/EC/FP7/303946/EU/Exploring novel nitrifier pathways to minimise direct greenhouse gas emissions from WWTPs./NITRI-GHG" , "dc.type.version": "info:eu-repo/semantics/publishedVersion" , "dc.identifier.doi": "http://dx.doi.org/10.1016/j.watres.2013.03.019" , "dc.identifier.idgrec": "018695" , "dc.contributor.funder": "Ministerio de Economía y Competitividad (Espanya)" , "dc.contributor.funder": "Ministerio de Ciencia e Innovación (Espanya)" , "dc.relation.FundingProgramme": "FP7" , "dc.relation.ProjectAcronym": "NITRI-GHG" , "dc.relation.ProjectAcronym": "RYC-2009-04959" , "dc.relation.ProjectAcronym": "GASES DE EFECTO INVERNADERO EN LOS SISTEMAS DE TRANSPORTE Y TRATAMIENTO DE AGUAS RESIDUALES: EVALUACION DE LAS EMISIONES" , "dc.identifier.eissn": "1879-2448" }