Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.

Samples of dead biomass from the marine brown algae Fucus ceranoides, F. vesiculosus and F.serratus were studied for their ability to remove cadmium from aqueous solutions. The metal sorption process is rapid, with 90% of the metal uptake completed within the first 25 min. of contact. The kinetic da...

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Detalles Bibliográficos
Autores: Herrero, Roberto, Cordero Pérez, Bruno, Lodeiro, Pablo, Rey-Castro, Carlos, Sastre de Vicente, Manuel E.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2006
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/58651
Acceso en línea:https://doi.org/10.1016/j.marchem.2005.05.009
http://hdl.handle.net/10459.1/58651
Access Level:acceso abierto
Palabra clave:Biosorption
Wastewater treatment
Heavy metals
Marine algae
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spelling Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.Herrero, RobertoCordero Pérez, BrunoLodeiro, PabloRey-Castro, CarlosSastre de Vicente, Manuel E.BiosorptionWastewater treatmentHeavy metalsMarine algaeSamples of dead biomass from the marine brown algae Fucus ceranoides, F. vesiculosus and F.serratus were studied for their ability to remove cadmium from aqueous solutions. The metal sorption process is rapid, with 90% of the metal uptake completed within the first 25 min. of contact. The kinetic data was described successfully by a pseudo second order chemical sorption process with rate constants of ca. 0.6 g·mmol-1 ·min-1. At pH 4.5, the raw biomass of the three species exhibited equilibrium uptake capacities for Cd as high as 0.8 mmol·g-1 (90 mg·g -1), on a dry weight basis, without chemical pretreatment. These sorption capacities are much higher than those reported for activated carbon and chitin. The sorption of Cd was found to increase as pH increases, reaching a plateau at pH 5. Batch sorption experiments and continuous potentiometric titrations of acidtreated biomass samples in 0.05M NaNO3 were used to derive thermodynamic binding parameters according to the NICCA model. The total amount of acid sites was 2.4-2.9 mmol·g -1, with median values of the affinity distribution for protons and cadmium ions, log KH ~ and log KCd ~ , of 3.7 and 2.69 respectively (conditional values). The apparent heterogeneity of the sorbent was successfully taken into account by the empirical 1 NICCA isotherm, which described very well the competition between protons and metal ions, in contrast with a simpler discrete competitive Langmuir model. The experimental results demonstrate that these seaweeds constitute a promising, efficient, cheap and biodegradable sorbent biomaterial for cadmium removal from wastewaters. This use would represent an example of exploitation of a renewable marine resource in water treatment technologies for the prevention of heavy metal pollution in the environment.This work was funded by the projects BQU2002-02133 (from the Ministerio de Ciencia y Tecnología of Spain) and PGDIT02TAM10302PR (from the Xunta de Galicia).Elsevier2006info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttps://doi.org/10.1016/j.marchem.2005.05.009http://hdl.handle.net/10459.1/58651reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)InglésMICYT/PN2000-2003/BQU2002-02133Versió postprint del document publicat a https://doi.org/10.1016/j.marchem.2005.05.009Marine chemistry, 2006, vol. 99, núm. 1-4, p. 106-116cc-by-nc-nd, (c) Elsevier, 2006info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/oai:repositori.udl.cat:10459.1/586512026-06-24T12:42:17Z
dc.title.none.fl_str_mv Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
title Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
spellingShingle Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
Herrero, Roberto
Biosorption
Wastewater treatment
Heavy metals
Marine algae
title_short Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
title_full Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
title_fullStr Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
title_full_unstemmed Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
title_sort Interactions of Cadmium(II) and protons with dead biomass of marine algae Fucus sp.
dc.creator.none.fl_str_mv Herrero, Roberto
Cordero Pérez, Bruno
Lodeiro, Pablo
Rey-Castro, Carlos
Sastre de Vicente, Manuel E.
author Herrero, Roberto
author_facet Herrero, Roberto
Cordero Pérez, Bruno
Lodeiro, Pablo
Rey-Castro, Carlos
Sastre de Vicente, Manuel E.
author_role author
author2 Cordero Pérez, Bruno
Lodeiro, Pablo
Rey-Castro, Carlos
Sastre de Vicente, Manuel E.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Biosorption
Wastewater treatment
Heavy metals
Marine algae
topic Biosorption
Wastewater treatment
Heavy metals
Marine algae
description Samples of dead biomass from the marine brown algae Fucus ceranoides, F. vesiculosus and F.serratus were studied for their ability to remove cadmium from aqueous solutions. The metal sorption process is rapid, with 90% of the metal uptake completed within the first 25 min. of contact. The kinetic data was described successfully by a pseudo second order chemical sorption process with rate constants of ca. 0.6 g·mmol-1 ·min-1. At pH 4.5, the raw biomass of the three species exhibited equilibrium uptake capacities for Cd as high as 0.8 mmol·g-1 (90 mg·g -1), on a dry weight basis, without chemical pretreatment. These sorption capacities are much higher than those reported for activated carbon and chitin. The sorption of Cd was found to increase as pH increases, reaching a plateau at pH 5. Batch sorption experiments and continuous potentiometric titrations of acidtreated biomass samples in 0.05M NaNO3 were used to derive thermodynamic binding parameters according to the NICCA model. The total amount of acid sites was 2.4-2.9 mmol·g -1, with median values of the affinity distribution for protons and cadmium ions, log KH ~ and log KCd ~ , of 3.7 and 2.69 respectively (conditional values). The apparent heterogeneity of the sorbent was successfully taken into account by the empirical 1 NICCA isotherm, which described very well the competition between protons and metal ions, in contrast with a simpler discrete competitive Langmuir model. The experimental results demonstrate that these seaweeds constitute a promising, efficient, cheap and biodegradable sorbent biomaterial for cadmium removal from wastewaters. This use would represent an example of exploitation of a renewable marine resource in water treatment technologies for the prevention of heavy metal pollution in the environment.
publishDate 2006
dc.date.none.fl_str_mv 2006
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.marchem.2005.05.009
http://hdl.handle.net/10459.1/58651
url https://doi.org/10.1016/j.marchem.2005.05.009
http://hdl.handle.net/10459.1/58651
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv MICYT/PN2000-2003/BQU2002-02133
Versió postprint del document publicat a https://doi.org/10.1016/j.marchem.2005.05.009
Marine chemistry, 2006, vol. 99, núm. 1-4, p. 106-116
dc.rights.none.fl_str_mv cc-by-nc-nd, (c) Elsevier, 2006
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
rights_invalid_str_mv cc-by-nc-nd, (c) Elsevier, 2006
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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