Dynamic studies of nitrophenols sorption on perfil in a fixed-bed column

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creativework.keywordsAdsorption, Fixed bed modeling, Nitrophenols, Perfil, Solid diffusion control
creativework.publisherMacedonian Journal of Chemistry and Chemical Engineeringen
dc.contributor.authorYaneva Z.
dc.contributor.authorMarinkovski M.
dc.contributor.authorMarkovska L.
dc.contributor.authorMeshko V.
dc.contributor.authorKoumanova B.
dc.date.accessioned2024-07-10T14:27:03Z
dc.date.accessioned2024-07-10T14:47:25Z
dc.date.available2024-07-10T14:27:03Z
dc.date.available2024-07-10T14:47:25Z
dc.date.issued2008-01-01
dc.description.abstractThe adsorption of two substituted nitrophenols, namely 4-nitrophenol (4-NP) and 2,4-dinitrophenol (2,4-DNP), from aqueous solutions onto perfil was studied using a fixed bed column. The theoretical solid diffusion control (SDC) model describing single solute adsorption in a fixed bed based on the Linear Driving Force (LDF) kinetic model was successfully applied to the investigated systems. The model parameters of solid diffusion coefficient, DS, axial dispersion coefficient, DL, and external mass transfer coefficient, kf, for the investigated systems were estimated by the means of a best fit approach. Some deviations were found between the predicted and the experimental data which reflect the fact that the assumptions of the model were not quite fulfilled for these experiments. It is necessary to adjust the values of the solid diffusion coefficient, the axial dispersion coefficient and the external mass transfer coefficient in order to obtain a satisfactory agreement between the simulated and the experimental breakthrough curves. A Biot number was used as an indicator for the intarparticle diffusion. The Biot number was found to decrease with the increase of bed depth, indicating that the film resistance increased or the intraparticle diffusion resistance decreased.
dc.identifier.doi10.20450/mjcce.2008.232
dc.identifier.issn1857-5625
dc.identifier.issn1857-5552
dc.identifier.scopusSCOPUS_ID:65449142875en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/160
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=65449142875&origin=inward
dc.titleDynamic studies of nitrophenols sorption on perfil in a fixed-bed column
dc.typeArticle
oaire.citation.issue2
oaire.citation.volume27
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