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dc.contributor.authorPedrouso Fuentes, Alba
dc.contributor.authorAiartza, Irati
dc.contributor.authorMorales Pereira, Nicolás
dc.contributor.authorVázquez Padín, José Ramón
dc.contributor.authorCampos Gómez, José Luis
dc.contributor.authorMosquera Corral, Anuska
dc.contributor.authorVal del Río, María Ángeles
dc.date.accessioned2018-03-05T15:24:39Z
dc.date.available2020-02-09T02:00:09Z
dc.date.issued2018-02-09
dc.identifier.citationPedrouso, A., Aiartza, I., Morales, N., Vázquez-Padín, J., Rogalla, F., & Campos, J. et al. (2018). Pilot-scale ELAN ® process applied to treat primary settled urban wastewater at low temperature via partial nitritation-anammox processes. Separation And Purification Technology, 200, 94-101. http://dx.doi.org/10.1016/j.seppur.2018.02.017
dc.identifier.urihttp://hdl.handle.net/10347/16558
dc.description.abstractA single stage partial nitritation and anammox granular pilot scale reactor (600 L) was operated to treat primary settled sewage in an urban wastewater treatment plant. The fed wastewater contained low total nitrogen concentrations of 6–25 mg TN/L and the system operated without temperature control ranging from 18 to 12 °C. A control strategy, based on the pH value, was applied to stop the aeration supply. The pH set-point was fixed at 6.0 and allowed obtaining a total nitrogen removal efficiency approximately of 50% treating a load of 67 mg TN/(L·d) without the addition of any chemicals. Although nitrite oxidizing bacteria were present in the inoculated sludge, when the pH-based control was implemented (day 30) the ammonium oxidation was favored compared to the nitrite oxidation activity. Then, the system operated stable the rest of the operational period (days 30–94) despite the presence of organic matter in the wastewater and the high variability of nitrogen load and temperature during the operation. Nitrogen was autotrophically removed accomplishing the stringent discharge limits (10 mg TN/L) and nitrate concentrations in the effluent lower than 3 mg NO3−-N/L. Both biomass concentration and granules size increased during the operational period indicating the growth of the biomass inside the reactor and therefore the potential treatment capacity.
dc.description.sponsorshipAuthors want to thank the Pioneer_STP (ID 199) project funded by the WaterWorks2014 Cofunded Call (Water JPI/Horizon 2020). This work was also funded by the Spanish Government through FISHPOL (CTQ2014-55021-R) and GRANDSEA (CTM2014-55397-JIN) projects and by Galician Government by the MEDRAR (IN852A 2016) project. The authors from the USC belong to CRETUS (AGRUP2015/02) and the Galician Competitive Research Group (GRC ED431C 2017/29). All these programs are co-funded by FEDER. This work was as well funded by the Chilean Government through the Project FONDECYT 1150285 and CONICYT/FONDAP/15130015
dc.language.isoeng
dc.publisherElsevier
dc.rights© 2018 Published by Elsevier B.V. and distributed under CC-BY-NC-ND user license
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAnammox
dc.subjectAutotrophic nitrogen removal
dc.subjectGranular biomass
dc.subjectMainstream
dc.subjectPartial nitritation
dc.titlePilot-scale ELAN® process applied to treat primary settled urban wastewater at low temperature via partial nitritation-anammox processes
dc.typejournal article
dc.identifier.doi10.1016/j.seppur.2018.02.017
dc.relation.publisherversionhttps://doi.org/10.1016/j.seppur.2018.02.017
dc.type.hasVersionAM
dc.rights.accessRightsopen access
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Enxeñaría Química
dc.description.peerreviewedSI
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2014-55021-R/ES/SISTEMA SOSTENIBLE PARA LA VALORIZACION DE AGUAS RESIDUALES DE CONSERVERA DE PESCADO A TRAVES DE LA PRODUCCION DE BIOPOLIMEROS
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2014-55397-JIN/ES/DESARROLLO DE SISTEMAS SOSTENIBLES BASADOS EN BIOMASA GRANULAR PARA EL TRATAMIENTO DE AGUAS RESIDUALES PROCEDENTES DE LA INDUSTRIA DE PRODUCTOS DEL MAR


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