Comparison of kinetics of Cr (III) ions removal from wastewater using raw and activated montmorillonite minerals

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dc.authoridKul, Sinan/0000-0002-7824-756X
dc.authoridEkmekyapar Torun, Fatma/0000-0002-2289-176X
dc.contributor.authorIrdemez, Sahset
dc.contributor.authorDurmus, Gul
dc.contributor.authorKul, Sinan
dc.contributor.authorTorun, Fatma Ekmekyapar
dc.contributor.authorBingul, Zuleyha
dc.date.accessioned2024-10-04T18:49:24Z
dc.date.available2024-10-04T18:49:24Z
dc.date.issued2021
dc.departmentBayburt Üniversitesien_US
dc.description.abstractIn this study, kinetics of the removal of Cr (III) from the waters by adsorption have been investigated using montmorillonite natural clay that was obtained from the vicinity of Narman, Erzurum in Turkey. Activation energy, thermodynamic values and adsorption kinetics were determined. In addition, the trials were repeated by subjecting to the same adsorbent activation process. The values found for these two adsorbents were compared. As a result of the experiments, the parameters affecting the adsorption kinetics were examined. It was determined that the adsorption process could be best depicted by pseudo second order reaction kinetics. Using pseudo second order reaction rate constants, Delta H degrees = -25.791 kJ mol(-1) and Delta S degrees = 106.19 joule mol(-1) were calculated for raw adsorbent. For the activated adsorbent, Delta H degrees = -18,806 kJ mol(-1) and Delta S degrees = 79.37 joule mol(-1) were calculated. That Delta G degrees increases as temperature increases indicates; adsorption is more spontaneous at high temperatures. Negative Delta H degrees values show that the reaction is exothermic. The positive values of Delta S degrees indicate increased randomness at the adsorbent/solution interface during the adsorption of chrome.en_US
dc.identifier.doi10.6092/issn.2281-4485/12914
dc.identifier.endpage26en_US
dc.identifier.issn2039-9898
dc.identifier.issn2281-4485
dc.identifier.scopus2-s2.0-85142846630en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage17en_US
dc.identifier.urihttps://doi.org/10.6092/issn.2281-4485/12914
dc.identifier.urihttp://hdl.handle.net/20.500.12403/3102
dc.identifier.volume45en_US
dc.identifier.wosWOS:000685633100003en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherUniv Studi Bologna, Dept Agricultural Sciencesen_US
dc.relation.ispartofEqa-International Journal of Environmental Qualityen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectactivated adsorbenten_US
dc.subjectadsorptionen_US
dc.subjectChrome removalen_US
dc.subjectheavy metal removalen_US
dc.titleComparison of kinetics of Cr (III) ions removal from wastewater using raw and activated montmorillonite mineralsen_US
dc.typeArticleen_US

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