Nitrite and nitrate inhibition thresholds for a glutamate-fed bio-P sludge

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dc.authorid0000-0003-1290-1669
dc.authorid0000-0002-3012-7964
dc.authorscopusid57053385500
dc.authorscopusid57224863647
dc.authorscopusid6507274804
dc.authorscopusid7006092768
dc.authorwosidBaeza, Juan Antonio/C-7061-2008
dc.authorwosidGuisasola, Albert/A-3776-2009
dc.contributor.authorRey Martinez, Natalia
dc.contributor.authorMerdan, Gökçe
dc.contributor.authorGuisasola, Albert
dc.contributor.authorAntonio Baeza, Juan
dc.date.accessioned2022-05-11T14:17:32Z
dc.date.available2022-05-11T14:17:32Z
dc.date.issued2021
dc.departmentFakülteler, Çorlu Mühendislik Fakültesi, Çevre Mühendisliği Bölümü
dc.description.abstractEnhanced biological phosphorus removal (EBPR) is an efficient and sustainable technology to remove phosphorus from wastewater. A widely known cause of EBPR deterioration in wastewater treatment plants (WWTPs) is the presence of nitrate/nitrite or oxygen in the anaerobic reactor. Moreover, most existing studies on the effect of either permanent aerobic conditions or inhibition of EBPR by nitrate or free nitrous acid (FNA) have been conducted with a Candidatus Accumulibacter or Tetrasphaera-enriched sludge, which are the two major reported groups of polyphosphate accumulating organisms (PAO) with key roles in full-scale EBPR WWTPs. This work reports the denitrification capabilities of a bio-P microbial community developed using glutamate as the sole source of carbon and nitrogen. This bio-P sludge exhibited a high denitrifying PAO (DPAO) activity, in fact, 56% of the phosphorus was uptaken under anoxic conditions. Furthermore, this mixed culture was able to use nitrite and nitrate as electron acceptor for P-uptake, being 1.8 mu g HNO2-N.L- 1 the maximum FNA concentration at which P-uptake can occur. Net P-removal was observed under permanent aerobic conditions. However, this microbial culture was more sensitive to FNA and permanent aerobic conditions compared to Ca. Accumulibacter-enriched sludge.
dc.description.sponsorshipSpanish Ministerio de Economia y CompetitividadSpanish Government [CTQ2014-60495-R, CTQ2017-82404-R]; Fondo Europeo de Desarrollo Regional (FEDER)European CommissionSpanish Government; Universitat Autonoma de Barcelona; GENOCOV research group (Grup de Recerca Consolidat de la Generalitat de Catalunya)Generalitat de Catalunya [2017SGR 1175]
dc.description.sponsorshipThis work was supported by the Spanish Ministerio de Economia y Competitividad (CTQ2014-60495-R and CTQ2017-82404-R) with funds from the Fondo Europeo de Desarrollo Regional (FEDER). Natalia Rey is grateful for the PIF PhD grant funded by the Universitat Aut`onoma de Barcelona. The authors are members of the GENOCOV research group (Grup de Recerca Consolidat de la Generalitat de Catalunya, 2017SGR 1175, www.genocov.com).
dc.identifier.doi10.1016/j.chemosphere.2021.131173
dc.identifier.issn0045-6535
dc.identifier.issn1879-1298
dc.identifier.pmid34182653
dc.identifier.scopus2-s2.0-85108451301
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.chemosphere.2021.131173
dc.identifier.urihttps://hdl.handle.net/20.500.11776/6391
dc.identifier.volume283
dc.identifier.wosWOS:000692107100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorMerdan, Gökçe
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofChemosphere
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectEnhanced biological phosphorus removal (EBPR)
dc.subjectDenitrifying polyphosphate accumulating organisms (DPAO)
dc.subjectFree nitrous acid (FNA)
dc.subjectNitrate
dc.subjectInhibition
dc.subjectBiological Phosphorus Removal
dc.subjectFree Nitrous-Acid
dc.subjectPolyphosphate-Accumulating Organisms
dc.subjectSole Carbon Source
dc.subjectWaste-Water
dc.subjectActivated-Sludge
dc.subjectPhosphate-Uptake
dc.subjectCommunity Structure
dc.subjectAerobic Conditions
dc.subjectOxide Production
dc.titleNitrite and nitrate inhibition thresholds for a glutamate-fed bio-P sludge
dc.typeArticle

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