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Capacity of simultaneous removal of zinc and cadmium from contaminated media, by two microalgae isolated from a polluted site

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dc.contributor.authorMonteiro, Cristina M.
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorMalcata, F. Xavier
dc.date.accessioned2012-01-16T17:36:45Z
dc.date.available2012-01-16T17:36:45Z
dc.date.issued2011
dc.description.abstractSeveral aquatic environments have been contaminated with heavy metals dumped via industrial effluents. Numerous studies have been published regarding the removal of single metals from aqueous solutions by microalgal biomass. However, such studies do not reflect the actual problem associated with industrial effluents because usually more than one metal species is present. Here we studied the biosorption capacity of Zn2+ and Cd2+ as single- and binary-metal systems by two microalgae, Scenedesmus obliquus and Desmodesmus pleiomorphus, isolated from a polluted site in Northern Portugal. For each metal independently, D. pleiomorphus showed a higher metal sorption capacity than S. obliquus, at concentrations ranging from 60 to 300 mg/l (except 150 mg(Cd)/l). Maximum amounts of Zn2+ and Cd2+ removed were 22.3 and 60.8 mg/g by S. obliquus, and 83.1 and 58.6 mg/g by D. pleiomorphus. In binary-metal solutions, S. obliquus was in general able to remove Zn2+ to higher extents than Cd2+, whereas the opposite was observed with D. pleiomorphus. The simultaneous uptake of Zn2+ and Cd2+ by both microalgae was considerably lower than that of their single-metal counterparts, at equivalent concentrations. Although microalgal uptake from binary-metal solutions was lower than from single-metal ones, the wild microalgae selected were able to efficiently take up mixtures of Zn2+ and Cd2+ up to 300 mg/l of both metals-thus materializing a promising bioremediation vector for polluted waters.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMONTEIRO, Cristina M.; CASTRO, Paula M. L.; MALCATA, F. Xavier - Capacity of simultaneous removal of zinc and cadmium from contaminated media, by two microalgae isolated from a polluted site. Environmental Chemistry Letters. ISSN 1610-3653. Vol.9 (2011), p. 511–517por
dc.identifier.doi10.1007/s10311-011-0311-9
dc.identifier.eissn1610-3661
dc.identifier.issn1610-3653
dc.identifier.urihttp://hdl.handle.net/10400.14/7482
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.relationOPTIMIZAÇÃO DOS PROCESSOS ENVOLVIDOS NA REMOÇÃO DE METAIS PESADOS UTILIZANDO MICROALGAS
dc.subjectScenedesmus obliquuspor
dc.subjectDesmodesmus pleiomorphuspor
dc.subjectSimultaneous biosorptionpor
dc.subjectBinary mixturepor
dc.subjectHeavy metalspor
dc.subjectZn and Cdpor
dc.titleCapacity of simultaneous removal of zinc and cadmium from contaminated media, by two microalgae isolated from a polluted sitepor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleOPTIMIZAÇÃO DOS PROCESSOS ENVOLVIDOS NA REMOÇÃO DE METAIS PESADOS UTILIZANDO MICROALGAS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F9332%2F2002/PT
oaire.citation.endPage517
oaire.citation.issue4
oaire.citation.startPage511
oaire.citation.titleEnvironmental Chemistry Letters
oaire.citation.volume9
person.familyNameMonteiro
person.familyNameCastro
person.familyNameMalcata
person.givenNameCristina
person.givenNamePaula
person.givenNameFrancisco
person.identifier2013444
person.identifier.ciencia-id691A-CDC0-2C9B
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.ciencia-id1B13-38A5-35F5
person.identifier.orcid0000-0002-5668-8153
person.identifier.orcid0000-0001-8841-6606
person.identifier.orcid0000-0003-3073-1659
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id26029962100
person.identifier.scopus-author-id7102781782
person.identifier.scopus-author-id7102542478
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication2e897f54-0a62-4c89-96c8-ef220c1196b0
relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
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relation.isProjectOfPublicationaecf3210-f695-4e6c-9a84-c4f700288a95
relation.isProjectOfPublication.latestForDiscoveryaecf3210-f695-4e6c-9a84-c4f700288a95

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