Distinctive denitrifying capabilities lead to differences in N2O production by denitrifying polyphosphate accumulating organisms and denitrifying glycogen accumulating organisms
dc.contributor.author
dc.date.accessioned
2017-04-07T10:48:31Z
dc.date.available
2021-04-07T08:02:59Z
dc.date.issued
2016-11-01
dc.identifier.issn
0960-8524
dc.identifier.uri
dc.description.abstract
This study aims at investigating the denitrification kinetics in two separate enriched cultures of denitrifying polyphosphate accumulating organisms (dPAO) and denitrifying glycogen accumulating organisms (dGAO) and compare their N2O accumulation potential under different conditions. Two sequencing batch reactors were inoculated to develop dPAO and dGAO enriched microbial communities separately. Seven batch tests with different combinations of electron acceptors (nitrate, nitrite and/or nitrous oxide) were carried out with the enriched biomass from both reactors. Results indicate that in almost all batch tests, N2O accumulated for both cultures, however dPAOs showed a higher denitrification capacity compared to dGAOs due to their higher nitrogen oxides reduction rates. Additionally, the effect of the simultaneous presence of several electron acceptors in the reduction rates of the different nitrogen oxides was also assessed in dPAOs and dGAOs
dc.description.sponsorship
This study was funded by the Spanish Government (MINECO) (CTM 2011-27163 and CTM 2015-66892-R), the European Commission (FP7-PEOPLE-2011-CIG 303946) and the Portuguese Fundação para a Ciência e Tecnologia (PTDC/AACAMB/12058/2010, UID/Multi/04378/2013 , PhD grant SFRH/BD/74515/2010). Spanish and Portuguese Governments are acknowledged for Acciones Integradas (PRIAIBPT- 2011-1232) and Luso-Espanhola action E-61/12. The European Commission is also acknowledged through COST action ES1202 (Water 2020). M. Pijuan and A. Ribera-Guardia acknowledge the Ramon y Cajal research fellowship (RYC-2009-04959) and the FPIPhD grant (BES-2012-052753) respectively 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/
MINECO/PE 2016-2019/CTM2015-66892-R
dc.relation.isformatof
Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.biortech.2016.07.092
dc.relation.ispartof
© Bioresource Technology, 2016, vol. 219, p. 106-113
dc.relation.ispartofseries
Articles publicats (ICRA)
dc.rights
Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional
dc.rights.uri
dc.subject
dc.title
Distinctive denitrifying capabilities lead to differences in N2O production by denitrifying polyphosphate accumulating organisms and denitrifying glycogen accumulating organisms
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
2018-11-01
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2018-11-01
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/acceptedVersion
dc.identifier.doi
dc.contributor.funder
dc.relation.FundingProgramme
dc.relation.ProjectAcronym