Characterization of the biosorption of fast black azo dye K salt by the bacterium Rhodopseudomonas palustris 51ATA strain

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dc.contributor.authorOzturk, Ayten
dc.contributor.authorBayol, Emel
dc.contributor.authorAbdullah, Meysun, I
dc.date.accessioned2024-11-07T13:32:04Z
dc.date.available2024-11-07T13:32:04Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractBackground: Removal of dyes from wastewater by microorganisms through adsorption, degradation, or accumulation has been investigated. Biological methods used for dye treatment are generally always effective and environmentally friendly. In this study, biosorption of the Fast Black K salt azo dye by the bacterium Rhodopseudomonas palustris 51ATA was studied spectrophotometrically, at various pH (2-10), temperatures (25 degrees C, 35 degrees C, and 45 degrees C) and dye concentrations (25-400 mg L-1). Results: The bacterial strain showed extremely good dye-removing potential at various dye concentrations. IR studies at different temperatures showed that the dye was adsorbed on the bacterial surface at lower temperatures. Characteristics of the adsorption process were investigated by Scatchard analysis at 25 degrees C and 35 degrees C. Scatchard analysis of the equilibrium binding data for the dye on this bacterium gave rise to linear plots, indicating that the Langmuir model could be applied. The regression coefficients obtained for the dye from the Freundlich and Langmuir models were significant and divergence from the Scatchard plot was observed. Conclusion: The adsorption behavior of the dye on this bacterium was expressed by the Langmuir, Freundlich, and Temkin isotherms. The adsorption data with respect to various temperatures provided an excellent fit to the Freundlich isotherm. However, when the Langmuir and Temkin isotherm models were applied to these data, a good fit was only obtained for the dye at lower temperatures, thus indicating that the biosorption ability of R. palustris 51ATA is dependent on temperature, pH, and dye concentration. (C) 2020 Pontificia Universidad Catolica de Valparaiso. Production and hosting by Elsevier B.V. All rights reserved.
dc.description.sponsorshipNigde Omer Halisdemir University [FEB 2013/13]
dc.description.sponsorshipAuthors are grateful to the Nigde Omer Halisdemir University for its financial support (Project No FEB 2013/13).
dc.identifier.doi10.1016/j.ejbt.2020.05.002
dc.identifier.endpage29
dc.identifier.issn0717-3458
dc.identifier.scopus2-s2.0-85086143442
dc.identifier.scopusqualityQ2
dc.identifier.startpage22
dc.identifier.urihttps://doi.org/10.1016/j.ejbt.2020.05.002
dc.identifier.urihttps://hdl.handle.net/11480/15211
dc.identifier.volume46
dc.identifier.wosWOS:000557952300004
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherUniv Catolica De Valparaiso
dc.relation.ispartofElectronic Journal of Biotechnology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectAzo dyes
dc.subjectBiosorption
dc.subjectDye removal
dc.subjectFast Black K salt azo dye
dc.subjectFreundlich
dc.subjectIsotherms
dc.subjectLangmuir
dc.subjectRhodopseudomonas palustris
dc.subjectScatchard analysis
dc.subjectTemkin
dc.subjectWastewater
dc.titleCharacterization of the biosorption of fast black azo dye K salt by the bacterium Rhodopseudomonas palustris 51ATA strain
dc.typeArticle

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