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Bacteria immobilisation on hydroxyapatite surface for heavy metals removal

2013Journal article Restricted access
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dc.contributor.authorPiccirillo, C.
dc.contributor.authorPereira, S. I. A.
dc.contributor.authorMarques, A. P. G. C.
dc.contributor.authorPullar, R. C.
dc.contributor.authorTobaldi, D. M.
dc.contributor.authorPintado, M. E.
dc.contributor.authorCastro, P. M. L.
dc.date.accessioned2014-05-07T18:42:40Z
dc.date.available2014-05-07T18:42:40Z
dc.date.issued2013
dc.description.abstractSelected bacterial strains were immobilised on the surface of hydroxyapatite (Ca-10(PO4)(6)(OH)(2) - HAp) of natural origin (fish bones). The capacity of the material, alone and in combination with the bacterial strains to act as heavy metal removers from aqueous streams was assessed. Pseudomonas fluorescens (S3X), Micro bacterium oxydans (EC29) and Cupriavidus sp. (1C2) were chosen based on their resistance to heavy metals and capacity of adsorbing the metals. These systems were tested using solutions of Zn(II), Cd(II) and in solutions containing both metals. A synergistic effect between the strains and HAp, which is effective in removing the target heavy metals on its own, was observed, as the combination of HAp with the bacterial strains led to higher adsorption capacity for both elements. For the solutions containing only one metal the synergistic effect was greater for higher metal concentrations; 1C2 and EC29 were the most effective strains for Zn(II) and Cd(II) respectively, while S3X was less effective. Overall, an almost four-fold increase was observed for the maximum adsorption capacity for Zn(II) when 10 was employed - 0.433 mmol/g in comparison of 0.121 mmol/g for the unmodified HAP. For Cd(II), on the other hand, an almost three-fold increase was registered with EC29 bacterial strain - 0.090 vs 0.036 mmol/g for the unmodified HAp. When the solutions containing both metals were tested, the effect was more marked for lower concentrations.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationPICCIRILLO, Clara ...[et al.] - Bacteria immobilisation on hydroxyapatite surface for heavy metals removal. Journal of Environmental Management. ISSN 0301-4797. Vol. 121 (2013), p. 87-95por
dc.identifier.doi10.1016/j.jenvman.2013.02.036
dc.identifier.eissn1095-8630
dc.identifier.issn0301-4797
dc.identifier.urihttp://hdl.handle.net/10400.14/14272
dc.identifier.wosWOS:000318388400010
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationQREN AdI I1466
dc.relationRESTORATION OF ABANDONED MINING SITES
dc.relationStrategic Project - LA 16 - 2011-2012
dc.subjectHeavy metals adsorptionpor
dc.subjectHydroxyapatitepor
dc.subjectBacterial strainspor
dc.subjectBiosorptionpor
dc.subjectBiofilmpor
dc.titleBacteria immobilisation on hydroxyapatite surface for heavy metals removalpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleRESTORATION OF ABANDONED MINING SITES
oaire.awardTitleStrategic Project - LA 16 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F34585%2F2007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F65134%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEQB%2FLA0016%2F2011/PT
oaire.citation.endPage95
oaire.citation.startPage87
oaire.citation.titleJournal of Environmental Management
oaire.citation.volume121
oaire.fundingStreamSFRH
oaire.fundingStream6817 - DCRRNI ID
person.familyNamePiccirillo
person.familyNamePereira
person.familyNameMarques
person.familyNamePullar
person.familyNameTobaldi
person.familyNamePintado
person.givenNameClara
person.givenNameSofia
person.givenNameAna
person.givenNameRobert
person.givenNameDavid Maria
person.givenNameMaria Manuela
person.identifier962551
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person.identifier.orcid0000-0002-5897-687X
person.identifier.orcid0000-0001-8232-1155
person.identifier.orcid0000-0001-6844-4482
person.identifier.orcid0000-0002-0112-8570
person.identifier.orcid0000-0002-0760-3184
person.identifier.ridN-8206-2013
person.identifier.ridH-4202-2016
person.identifier.ridF-5696-2013
person.identifier.scopus-author-id7004621626
person.identifier.scopus-author-id15127794800
person.identifier.scopus-author-id14523081300
person.identifier.scopus-author-id7003296532
person.identifier.scopus-author-id16319626100
person.identifier.scopus-author-id7004483898
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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