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A diffusion-reaction kinetic model for the removal of aqueous 4-chlorophenol with immobilized peroxidase

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dc.contributor.authorGómez Carrasco, J.L.
dc.contributor.authorGómez Gómez, E.
dc.contributor.authorMáximo, María Fuensanta
dc.contributor.authorGómez Gómez, María
dc.contributor.authorMurcia Almagro, María Dolores
dc.contributor.authorOrtega Requena, Salvadora
dc.contributor.departmentIngeniería Química
dc.contributor.otherFacultad de Química
dc.date.accessioned2026-02-24T16:32:58Z
dc.date.available2026-02-24T16:32:58Z
dc.date.copyright© 2010, Elsevier B.V. All rights reserved
dc.date.issued2010-11-13
dc.description.abstractA diffusion-reaction kinetic model is presented for the kinetic analysis of the removal process of phenolic compounds using hydrogen peroxide and immobilized peroxidase. The good results obtained in the fitting of the experimental data to the model confirm its validity, in the experimental range considered, as well as the one of the extended version of the Dunford mechanism proposed in a previous paper. The phenomenon of enzyme deactivation and/or sequestration by the precipitated olygomers/polymers, which has been widely described in the literature, is here modeled as the growth of a polymeric film over the external surface and inside the pores of the catalytic particles that contain the enzyme, thus determining the appearance of diffusional limitations and an increasing loss of activity. The deactivation phenomena, interpreted and modeled in terms of the effectiveness factor, are included in the kinetic model. To confirm the validity of the model, several series of experiments were carried out in a discontinuous tank reactor. Some of these experimental series were used to obtain the values of the kinetic parameters by numerical calculation and using an error minimization algorithm. Since the model reproduces the behavior of the system for the series of experiments not used for the determination of the parameters, it can be affirmed that the model is suitable for the kinetic analysis of the system under study.
dc.formatapplication/pdf
dc.format.extent11
dc.identifier.citationChemical Engineering Journal 166 (2011) 693–703
dc.identifier.doihttps://doi.org/10.1016/j.cej.2010.11.022
dc.identifier.eissn1873-3212
dc.identifier.issn1385-8947
dc.identifier.urihttp://hdl.handle.net/10201/212462
dc.languageeng
dc.publisherElsevier
dc.relationThis work was supported by grant CTQ2007-64327/PPQ from the CICYT, Spain. During the time that this study was being carried out, M. Gómez, M.D. Murcia and S. Ortega were beneficiaries of Saavedra Fajardo, post-doctoral and pre-doctoral scholarships, respectively, from Foundation Séneca (Science and Technolgy Agency of the Region of Murcia, Spain).
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S138589471001106X
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectEnzyme bioreactors
dc.subjectHeterogeneous biocatalysis
dc.subjectKinetic parameters
dc.subjectModeling
dc.subjectWastewater treatment
dc.subjectBatch processing
dc.subject.odsNo relacionado con ningún objetivo de desarrollo sostenible
dc.titleA diffusion-reaction kinetic model for the removal of aqueous 4-chlorophenol with immobilized peroxidase
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublicationes
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