Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)

Detalhes bibliográficos
Autor(a) principal: Martins, Ramiro
Data de Publicação: 2007
Outros Autores: Freitas, Olga, Vilar, Vítor J.P., Boaventura, Rui
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/1999
Resumo: The uptake and release of Pb(II) by Fontinalis antipyretica was studied in laboratory, by exposing the plants to different lead concentrations for 144 h and 335 h contamination and decontamination periods, respectively. A first order kinetic model was fitted to the experimental data to determine the uptake and release constants, k1 and k2, and other relevant parameters. The metal accumulation capacity, at equilibrium, follows the order: Pb(II) > Zn(II) > Cd(II) > Cr(VI). A Bioconcentration Factor (BCF) and a Biological Elimination Factor (BEF) were also determined; for 0.9–2.2 mg Pb l–1, BCF decreases from about 30748 to 21296.
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spelling Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)Fontinalis antipyreticaFirst-order modelKineticsLeadThe uptake and release of Pb(II) by Fontinalis antipyretica was studied in laboratory, by exposing the plants to different lead concentrations for 144 h and 335 h contamination and decontamination periods, respectively. A first order kinetic model was fitted to the experimental data to determine the uptake and release constants, k1 and k2, and other relevant parameters. The metal accumulation capacity, at equilibrium, follows the order: Pb(II) > Zn(II) > Cd(II) > Cr(VI). A Bioconcentration Factor (BCF) and a Biological Elimination Factor (BEF) were also determined; for 0.9–2.2 mg Pb l–1, BCF decreases from about 30748 to 21296.InderscienceBiblioteca Digital do IPBMartins, RamiroFreitas, OlgaVilar, Vítor J.P.Boaventura, Rui2010-02-18T15:57:02Z20072007-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/1999engMartins, Ramiro; Freitas, Olga; Vilar, Vitor; Boaventura, Rui (2007). Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica). International Journal of Environment and Waste Management. ISSN 1478-9876. 9: 3,4, p. 270-2831478-98761478-9868info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-04-19T01:22:56ZPortal AgregadorONG
dc.title.none.fl_str_mv Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
title Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
spellingShingle Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
Martins, Ramiro
Fontinalis antipyretica
First-order model
Kinetics
Lead
title_short Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
title_full Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
title_fullStr Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
title_full_unstemmed Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
title_sort Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica)
author Martins, Ramiro
author_facet Martins, Ramiro
Freitas, Olga
Vilar, Vítor J.P.
Boaventura, Rui
author_role author
author2 Freitas, Olga
Vilar, Vítor J.P.
Boaventura, Rui
author2_role author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Martins, Ramiro
Freitas, Olga
Vilar, Vítor J.P.
Boaventura, Rui
dc.subject.por.fl_str_mv Fontinalis antipyretica
First-order model
Kinetics
Lead
topic Fontinalis antipyretica
First-order model
Kinetics
Lead
description The uptake and release of Pb(II) by Fontinalis antipyretica was studied in laboratory, by exposing the plants to different lead concentrations for 144 h and 335 h contamination and decontamination periods, respectively. A first order kinetic model was fitted to the experimental data to determine the uptake and release constants, k1 and k2, and other relevant parameters. The metal accumulation capacity, at equilibrium, follows the order: Pb(II) > Zn(II) > Cd(II) > Cr(VI). A Bioconcentration Factor (BCF) and a Biological Elimination Factor (BEF) were also determined; for 0.9–2.2 mg Pb l–1, BCF decreases from about 30748 to 21296.
publishDate 2007
dc.date.none.fl_str_mv 2007
2007-01-01T00:00:00Z
2010-02-18T15:57:02Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/1999
url http://hdl.handle.net/10198/1999
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Martins, Ramiro; Freitas, Olga; Vilar, Vitor; Boaventura, Rui (2007). Accumulation and release of Pb(II) in aqueous solution by aquatic mosses (Fontinalis antipyretica). International Journal of Environment and Waste Management. ISSN 1478-9876. 9: 3,4, p. 270-283
1478-9876
1478-9868
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Inderscience
publisher.none.fl_str_mv Inderscience
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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