Co-removal of P-nitrophenol and nitrate in sulfur-based autotrophic and methanol-fed heterotrophic denitrification bioreactors

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dc.authorid0000-0002-7782-1240
dc.authorid0000-0003-0473-6878
dc.contributor.authorYenilmez, Aylin Ebru
dc.contributor.authorErtul, Selin
dc.contributor.authorYilmaz, Tulay
dc.contributor.authorUcar, Deniz
dc.contributor.authorDi Capua, Francesco
dc.contributor.authorSahinkaya, Erkan
dc.date.accessioned2026-02-12T21:05:05Z
dc.date.available2026-02-12T21:05:05Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractP-nitrophenol (PNP) can co-occur with nitrate (NO3-) in industrial and municipal wastewater due to effluent discharges from industry and agricultural activities. In this study, the simultaneous removal of PNP and NO3- was investigated under autotrophic and heterotrophic denitrifying conditions in two bioreactor columns at laboratory scale. Autotrophic denitrification with elemental sulfur showed efficient elimination of both PNP (85 % on average for 5-50 mg/L) and NO3- (99 % on average) even at feed PNP concentration of 50 mg/L. In contrast, the heterotrophic column showed significantly lower PNP removal (53 % on average for 5-50 mg/L) despite denitrification efficiency being >= 95 %. ORP was identified as a possible control parameter to modulate PNP removal efficiency. The autotrophic column showed better resiliency than the heterotrophic one under intermittent feeding of 50 mg/L of PNP. Absorbance spectra and HPLC results revealed no accumulation of PNP by-products, i.e., aminophenol, in the autotrophic column during transient feeding conditions.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [1919B012106238, 1919B012106324]
dc.description.sponsorshipAcknowledgements This study was funded by The Scientific and Technological Research Council of Turkey (TUBITAK, Project No: 1919B012106238 and 1919B012106324) .
dc.identifier.doi10.1016/j.jece.2023.111325
dc.identifier.issn2213-2929
dc.identifier.issn2213-3437
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85175170842
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jece.2023.111325
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6787
dc.identifier.volume11
dc.identifier.wosWOS:001101273700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofJournal of Environmental Chemical Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectNitrophenol
dc.subjectNitrate
dc.subjectAutotrophic denitrification
dc.subjectElemental sulfur
dc.subjectHeterotrophic denitrification
dc.titleCo-removal of P-nitrophenol and nitrate in sulfur-based autotrophic and methanol-fed heterotrophic denitrification bioreactors
dc.typeArticle

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