Perchlorate reduction in a thiosulfate-based denitrifying membrane bioreactor

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dc.authorid0000-0001-6512-5232
dc.contributor.authorYilmaz, Tuelay
dc.contributor.authorYurtsever, Adem
dc.contributor.authorSahinkaya, Erkan
dc.contributor.authorUcar, Deniz
dc.date.accessioned2026-02-12T21:05:06Z
dc.date.available2026-02-12T21:05:06Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractReductive removals of perchlorate and nitrate, which can be present simultaneously in groundwater, were investigated in a novel thiosulfate-based denitrifying lab-scale membrane bioreactor (MBR) equipped with a polyethersulfone membrane module. Complete denitrification at a hydraulic retention time (HRT) as low as 3 h and a rate of 800 mg NO3--N/(L.d) was accomplished. Simultaneous with nitrate, complete perchlorate reduction was also detected at the feed concentration of 3000 mu g/L and at 12 h HRT. Although further rise in perchlorate loading caused its incomplete reduction, the reduction rate reached up to 38 mg/(L.d). Hence, the developed process is promising for simultaneous perchlorate and nitrate reduction from contaminated groundwater. Sus-tainable filtration performance was observed up to a flux of 12.5 L/(m2.h) (LMH) at which the fouling rate was 85.32 +/- 19.65 mbar/d. However, when the flux was raised further to 25 L/(m2.h), the TMP drastically increased to a rate of 393 +/- 40 mbar/d.
dc.description.sponsorshipScientific and Technological Research Council of Turkey [117Y014]
dc.description.sponsorshipThe Scientific and Technological Research Council of Turkey provided support for this study (TUBITAK/Project no: 117Y014)
dc.identifier.doi10.1016/j.bej.2023.109100
dc.identifier.issn1369-703X
dc.identifier.issn1873-295X
dc.identifier.scopus2-s2.0-85173179135
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.bej.2023.109100
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6800
dc.identifier.volume200
dc.identifier.wosWOS:001149637800001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofBiochemical Engineering Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectNitrate removal
dc.subjectPerchlorate removal
dc.subjectThiosulfate
dc.subjectUltrafiltration
dc.subjectMembrane bioreactor
dc.titlePerchlorate reduction in a thiosulfate-based denitrifying membrane bioreactor
dc.typeArticle

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