Direct and sulfide mediated treatment of textile effluents in acetate and ethanol-fed upflow sulfidogenic bioreactors

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dc.authorid0000-0003-3052-2945
dc.contributor.authorYilmaz, T.
dc.contributor.authorYildiz, M.
dc.contributor.authorYapici, C. S. Arzum
dc.contributor.authorAnnak, H. U.
dc.contributor.authorUcar, D.
dc.date.accessioned2026-02-12T21:05:36Z
dc.date.available2026-02-12T21:05:36Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractSulfate is a key component in the textile industry and sulfate-reducing conditions could enhance dye reduction in the treatment of textile industry wastewater. In this study, a sulfidogenic up flow anaerobic reactors fed with different organic substrates (ethanol and acetate) were operated to treat textile wastewater and Remazol Brilliant Violet 5R was used as a model dyestuff. The reactors were operated for 192 days at 7 operational periods at 1 day HRT. Throughout the study, 2000 mg/L SO42- and 1340-1540 mg/L COD were added to the feed, corresponding to COD/SO42- ratios of 0.67 and 0.77, respectively. Remazol Brilliant Violet 5R was added to feed at a concentration of 50 mg/L on day 148 and its concentration was gradually increased to 1000 mg/L. The maximum dye removal rate was over 990 mg/(L.d) for both reactors. Although high-rate dye removal was achieved, an increase in the dye concentration resulted in a decreased sulfate reduction and COD oxidation for both reactors. In addition to the continuous process, biotic and abiotic batch reactors were operated to identify the dye removal mechanism. Batch reactors showed that biogenic sulfide produced in the sulfate reduction can be used to reduce Remazol Brilliant Violet 5R. Batch reactors also indicated that although abiotic sulfide-based Remazol Brilliant Violet 5R reduction is possible, the presence of microorganisms increased its reduction rate.
dc.identifier.doi10.1007/s13762-023-04774-3
dc.identifier.endpage7188
dc.identifier.issn1735-1472
dc.identifier.issn1735-2630
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85147523721
dc.identifier.scopusqualityQ1
dc.identifier.startpage7177
dc.identifier.urihttps://doi.org/10.1007/s13762-023-04774-3
dc.identifier.urihttps://hdl.handle.net/20.500.12885/7047
dc.identifier.volume20
dc.identifier.wosWOS:000924864600004
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofInternational Journal of Environmental Science and Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectSulfide-based reduction
dc.subjectAzo dye
dc.subjectDecolorization
dc.subjectSulfidogenic reactor
dc.titleDirect and sulfide mediated treatment of textile effluents in acetate and ethanol-fed upflow sulfidogenic bioreactors
dc.typeArticle

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