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Adsorption of fluorobenzene onto granular activated carbon: Isotherm and bioavailability studies

2007Journal article Restricted access
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dc.contributor.authorCarvalho, M.F.
dc.contributor.authorDuque, A.F.
dc.contributor.authorGonçalves, I.C.
dc.contributor.authorCastro, Paula M. L.
dc.date.accessioned2010-10-11T17:45:49Z
dc.date.available2010-10-11T17:45:49Z
dc.date.issued2007
dc.description.abstractThe adsorption of a recalcitran fluoroaromatic compound, fluorobenzene (FB), onto granular activated carbon (GAC) was evaluated. The respective isotherm was obtained and the Langmuir, Freundlich and Redlich–Peterson models were fitted to the experimental data, with the Redlich–Peterson model giving the best fitting. Freundlich model also provided a good fit but the Langmuir model could not adequately fit the experimental data, especially at high FB concentrations. Maximal adsorption capacity of FB onto GAC was foundto be 388 mg of FB per gram of GAC. The reversibility of the adsorption of FB onto GAC was investigated, both in the absence and presence of microorganisms. Abiotic desorption of FB occurred to a small extent (between 3% and 22%, for amounts of FB initially adsorbed to the GAC between 37 and 388 mg g 1), and bioregeneration of GAC was shown to occur when the matrix was exposed to a FB degrading culture, with 58–80% of the adsorbed FB being biodegraded. A residual amount of FB showed not to be bioavailable, suggesting that part of the adsorbed FB may be irreversibly bound. The fraction of the non-bioavailable FB increased at higher amounts of adsorbed FB, from 19% to 33%. The results indicate that the GAC employed in this study has a good capacity to adsorb FB and that bioregeneration of this matrix is a feasible process.por
dc.identifier.citation"Bioresource Technology". ISSN 0960-8524 98 (2007) 3424–3430por
dc.identifier.doi10.1016/j.biortech.2006.11.001
dc.identifier.urihttp://hdl.handle.net/10400.14/2820
dc.language.isoengpor
dc.publisherElsevierpor
dc.subjectFluorobenzenepor
dc.subjectGranular activated carbonpor
dc.subjectAdsorption isothermpor
dc.subjectBioavailabilitypor
dc.subjectBioregenerationpor
dc.titleAdsorption of fluorobenzene onto granular activated carbon: Isotherm and bioavailability studiespor
dc.typejournal article
dspace.entity.typePublication
person.familyNameCarvalho
person.familyNameF. Duque
person.familyNameCastro
person.givenNameM. Fátima
person.givenNameAnouk
person.givenNamePaula
person.identifier2013444
person.identifier.ciencia-id6913-1464-155B
person.identifier.ciencia-id7819-FA0D-FC04
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.orcid0000-0002-7181-0540
person.identifier.orcid0000-0002-8360-1404
person.identifier.orcid0000-0001-8841-6606
person.identifier.ridN-5863-2014
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id14038677200
person.identifier.scopus-author-id36573459300
person.identifier.scopus-author-id7102781782
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication964897d5-02c3-4efe-a8c3-44ea68cf4974
relation.isAuthorOfPublicationd23f1d0d-9558-4f84-aa79-1efc0552f360
relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublication.latestForDiscoveryf2253992-dc8d-4042-9a0f-597ebcf0a1d6

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