Denitrification performance and microbial community dynamics in a denitrification reactor as revealed by high-throughput sequencing

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dc.contributor.authorDemirel, Sevgi
dc.date.accessioned2024-11-07T13:24:14Z
dc.date.available2024-11-07T13:24:14Z
dc.date.issued2017
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe dynamics of the bacterial community associated with the denitrification process in a fixed bed column reactor (FBCR) were investigated using 454-pyrosequencing methodology. A FBCR filled with elemental sulfur and limestone was operated for about 94 days under autotrophic and mixotrophic (autotrophic + heterotrophic) conditions at 30 degrees C. Efficient simultaneous bromate and nitrate removal was achieved at feed concentrations of 500 mu g/L bromate and 45 mg/L nitrate under autotrophic and mixotrophic conditions. Operational taxonomic units-based analysis (97% similarity cut-off) of bioreactor samples (three periods) revealed that the microbial diversity changed regardless of operational conditions. Sulfurimonas spp. was dominant in the reactor at the adaptation stage. Thiobacillus denitrificans is a chemolithoautotrophic bacterium that is capable of the oxidation of inorganic sulfur compounds. After the adaptation period, the microbial profile changed such that Spirochaetacea spp. and Denitratisoma spp. were major species in the column reactor. After 60 d of operation, Hyphomicrobium vulgare became dominant due to the mixotrophic denitrification conditions.
dc.description.sponsorshipTUBITAK [111Y165]
dc.description.sponsorshipThis study was funded by TUBITAK (Project No. 111Y165).
dc.identifier.doi10.2166/ws.2016.194
dc.identifier.endpage946
dc.identifier.issn1606-9749
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85026393222
dc.identifier.scopusqualityQ3
dc.identifier.startpage940
dc.identifier.urihttps://doi.org/10.2166/ws.2016.194
dc.identifier.urihttps://hdl.handle.net/11480/13988
dc.identifier.volume17
dc.identifier.wosWOS:000408713700004
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIwa Publishing
dc.relation.ispartofWater Science and Technology-Water Supply
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectbromate
dc.subjecthigh-throughput sequencing
dc.subjectmicrobial community
dc.subjectmixotrophic denitrification
dc.subjectnitrate
dc.titleDenitrification performance and microbial community dynamics in a denitrification reactor as revealed by high-throughput sequencing
dc.typeArticle

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