Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/7732

Full metadata record
DC FieldValueLanguage
dc.contributor.authorQuintelas, C.-
dc.contributor.authorFernandes, Bruno Daniel-
dc.contributor.authorCastro, J.-
dc.contributor.authorFigueiredo, Hugo-
dc.contributor.authorTavares, M. T.-
dc.date.accessioned2008-03-20-
dc.date.available2008-03-20-
dc.date.issued2008-03-
dc.date.submitted2006-
dc.identifier.citation"Chemical Engineering Journal". ISSN 1385-8947. 136:2-3 (2008) 195-203.eng
dc.identifier.issn1385-8947eng
dc.identifier.urihttp://hdl.handle.net/1822/7732-
dc.description.abstractThe ability of a biofilm of Bacillus coagulans supported on granular activated carbon (GAC) to biosorb Cr(VI) was investigated in batch and column studies so it may be applied to low metal concentration wastewater treatment. The quantification of polysaccharides and polymeric net revealed a value of 9.19 mg/gbiosorbent for the polysaccharides and 75 mg/gbiosorbent, for the polymeric net. The results obtained with open systems showed uptake values of 1.50, 1.98 and 5.34 mg/gbiosorbent, respectively, for initial concentrations of 10, 50 and 100 mg/L of Cr(VI). Column studies performed with an industrial effluent showed values of Cr uptake of 0.090 mg/gbiosorbent, for an initial concentration of 4.2 mg/L. The presence of functional groups on the cell wall surface of the biomass that may interact with the metal ion, was confirmed by FTIR. The equilibrium studies in batch systems were described by Freundlich, Langmuir, Reddlich–Peterson, Dubinin–Radushkevich, Sips and Toth model isotherms. Best fit was obtained with Toth model isotherm. Data from column studies were described by Adams–Bohart and Wolborska models. These models were found suitable for describing the dynamic behaviour of the columns with respect to the inlet chromium concentration. The whole study showed that the biofilm tested is very promising for the removal of Cr(VI) in industrial wastewater.eng
dc.description.sponsorshipFEDER.por
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT) - POCTI/QUI/44840/2002.por
dc.language.isoengeng
dc.publisherElseviereng
dc.rightsopenAccesseng
dc.subjectActivated carboneng
dc.subjectBacillus coagulanseng
dc.subjectBiofilmeng
dc.subjectBiosorptioneng
dc.subjectChromium(VI)eng
dc.titleBiosorption of Cr(VI) by a Bacillus coagulans biofilm supported on granular activated carbon (GAC)eng
dc.typearticlepor
dc.peerreviewedyeseng
dc.relation.publisherversionwww.elsevier.comeng
sdum.number2-3eng
sdum.pagination195-203eng
sdum.publicationstatuspublishedeng
sdum.volume136eng
degois.publication.firstPage195por
degois.publication.lastPage203por
degois.publication.issue2-3por
degois.publication.volume136por
dc.identifier.doi10.1016/j.cej.2007.03.082por
dc.subject.wosScience & Technologypor
sdum.journalChemical Engineering Journalpor
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
Quintelas_CEJ[1].pdf520,1 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID