pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material

Autores
Musso, Telma Belén; Parolo, Maria Eugenia; Pettinari, Gisela Roxana
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The potential of a Na-bentonite to be used as liner material for the adsorption of Cu(II) and Ni(II) ions from mono, bi, and polycationic solutions was investigated by batch mode. pH and ionic strength effect on Cu(II) and Ni(II) sorption were evaluated. For isotherm sorption studies, metal solutions parameters (pH and ionic strength) were selected simulating common landfill leachate conditions in the acidogenic stage. The removal of these ions by the Na-bentonite is dominantly controlled by sorption (specifically, cation exchange) under acidic conditions, but it can be strongly enhanced by metal oxide/hydroxide precipitation under alkaline conditions. Adsorption equilibrium models for the single, binary, and multicomponent systems indicate that the Langmuir-type model can fit the experimental data very well for all of them. The co-presence of metals led to a decrease in the sorption of both metals due to competition for adsorption sites. Optimum conditions are obtained when the ionic strength of solution is low (<0.05 M), pH is higher than 6, and the metal concentration is lower than 20 mg/L. Adsorption rates indicate that in addition to its quality as a physical barrier this bentonite can also act as a chemical barrier, limiting the migration of heavy metals from security landfills.
Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina
Fil: Parolo, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue. Laboratorio de Investigaciones Bioquímicas y Químicas del Ambiente | Universidad Nacional del Comahue. Facultad de Ciencias Agrarias. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue. Laboratorio de Investigaciones Bioquímicas y Químicas del Ambiente; Argentina
Fil: Pettinari, Gisela Roxana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina
Materia
BENTONITE
HEAVY METALS
CO-ADSORPTION
LINER MATERIAL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/148743
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/148743
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner materialMusso, Telma BelénParolo, Maria EugeniaPettinari, Gisela RoxanaBENTONITEHEAVY METALSCO-ADSORPTIONLINER MATERIALhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The potential of a Na-bentonite to be used as liner material for the adsorption of Cu(II) and Ni(II) ions from mono, bi, and polycationic solutions was investigated by batch mode. pH and ionic strength effect on Cu(II) and Ni(II) sorption were evaluated. For isotherm sorption studies, metal solutions parameters (pH and ionic strength) were selected simulating common landfill leachate conditions in the acidogenic stage. The removal of these ions by the Na-bentonite is dominantly controlled by sorption (specifically, cation exchange) under acidic conditions, but it can be strongly enhanced by metal oxide/hydroxide precipitation under alkaline conditions. Adsorption equilibrium models for the single, binary, and multicomponent systems indicate that the Langmuir-type model can fit the experimental data very well for all of them. The co-presence of metals led to a decrease in the sorption of both metals due to competition for adsorption sites. Optimum conditions are obtained when the ionic strength of solution is low (<0.05 M), pH is higher than 6, and the metal concentration is lower than 20 mg/L. Adsorption rates indicate that in addition to its quality as a physical barrier this bentonite can also act as a chemical barrier, limiting the migration of heavy metals from security landfills.Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; ArgentinaFil: Parolo, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue. Laboratorio de Investigaciones Bioquímicas y Químicas del Ambiente | Universidad Nacional del Comahue. Facultad de Ciencias Agrarias. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue. Laboratorio de Investigaciones Bioquímicas y Químicas del Ambiente; ArgentinaFil: Pettinari, Gisela Roxana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; ArgentinaHard2019-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/148743Musso, Telma Belén; Parolo, Maria Eugenia; Pettinari, Gisela Roxana; pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material; Hard; Polish Journal Of Environmental Studies; 28; 4; 1-2019; 2299-23101230-1485CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.pjoes.com/pH-Ionic-Strength-and-Ion-Competition-Effect-non-Cu-II-and-Ni-II-Sorption-by-a-Na,84922,0,2.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.15244/pjoes/84922info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:23:50Zoai:ri.conicet.gov.ar:11336/148743instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:23:50.794CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
title pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
spellingShingle pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
Musso, Telma Belén
BENTONITE
HEAVY METALS
CO-ADSORPTION
LINER MATERIAL
title_short pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
title_full pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
title_fullStr pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
title_full_unstemmed pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
title_sort pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material
dc.creator.none.fl_str_mv Musso, Telma Belén
Parolo, Maria Eugenia
Pettinari, Gisela Roxana
author Musso, Telma Belén
author_facet Musso, Telma Belén
Parolo, Maria Eugenia
Pettinari, Gisela Roxana
author_role author
author2 Parolo, Maria Eugenia
Pettinari, Gisela Roxana
author2_role author
author
dc.subject.none.fl_str_mv BENTONITE
HEAVY METALS
CO-ADSORPTION
LINER MATERIAL
topic BENTONITE
HEAVY METALS
CO-ADSORPTION
LINER MATERIAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The potential of a Na-bentonite to be used as liner material for the adsorption of Cu(II) and Ni(II) ions from mono, bi, and polycationic solutions was investigated by batch mode. pH and ionic strength effect on Cu(II) and Ni(II) sorption were evaluated. For isotherm sorption studies, metal solutions parameters (pH and ionic strength) were selected simulating common landfill leachate conditions in the acidogenic stage. The removal of these ions by the Na-bentonite is dominantly controlled by sorption (specifically, cation exchange) under acidic conditions, but it can be strongly enhanced by metal oxide/hydroxide precipitation under alkaline conditions. Adsorption equilibrium models for the single, binary, and multicomponent systems indicate that the Langmuir-type model can fit the experimental data very well for all of them. The co-presence of metals led to a decrease in the sorption of both metals due to competition for adsorption sites. Optimum conditions are obtained when the ionic strength of solution is low (<0.05 M), pH is higher than 6, and the metal concentration is lower than 20 mg/L. Adsorption rates indicate that in addition to its quality as a physical barrier this bentonite can also act as a chemical barrier, limiting the migration of heavy metals from security landfills.
Fil: Musso, Telma Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina
Fil: Parolo, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue. Laboratorio de Investigaciones Bioquímicas y Químicas del Ambiente | Universidad Nacional del Comahue. Facultad de Ciencias Agrarias. Centro de Investigaciones en Toxicología Ambiental y Agrobiotecnología del Comahue. Laboratorio de Investigaciones Bioquímicas y Químicas del Ambiente; Argentina
Fil: Pettinari, Gisela Roxana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. Universidad Nacional del Comahue. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina
description The potential of a Na-bentonite to be used as liner material for the adsorption of Cu(II) and Ni(II) ions from mono, bi, and polycationic solutions was investigated by batch mode. pH and ionic strength effect on Cu(II) and Ni(II) sorption were evaluated. For isotherm sorption studies, metal solutions parameters (pH and ionic strength) were selected simulating common landfill leachate conditions in the acidogenic stage. The removal of these ions by the Na-bentonite is dominantly controlled by sorption (specifically, cation exchange) under acidic conditions, but it can be strongly enhanced by metal oxide/hydroxide precipitation under alkaline conditions. Adsorption equilibrium models for the single, binary, and multicomponent systems indicate that the Langmuir-type model can fit the experimental data very well for all of them. The co-presence of metals led to a decrease in the sorption of both metals due to competition for adsorption sites. Optimum conditions are obtained when the ionic strength of solution is low (<0.05 M), pH is higher than 6, and the metal concentration is lower than 20 mg/L. Adsorption rates indicate that in addition to its quality as a physical barrier this bentonite can also act as a chemical barrier, limiting the migration of heavy metals from security landfills.
publishDate 2019
dc.date.none.fl_str_mv 2019-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/148743
Musso, Telma Belén; Parolo, Maria Eugenia; Pettinari, Gisela Roxana; pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material; Hard; Polish Journal Of Environmental Studies; 28; 4; 1-2019; 2299-2310
1230-1485
CONICET Digital
CONICET
url http://hdl.handle.net/11336/148743
identifier_str_mv Musso, Telma Belén; Parolo, Maria Eugenia; Pettinari, Gisela Roxana; pH, ionic strength, and ion competition effect on Cu(II) and Ni(II) sorption by a Na-bentonite used as liner material; Hard; Polish Journal Of Environmental Studies; 28; 4; 1-2019; 2299-2310
1230-1485
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.pjoes.com/pH-Ionic-Strength-and-Ion-Competition-Effect-non-Cu-II-and-Ni-II-Sorption-by-a-Na,84922,0,2.html
info:eu-repo/semantics/altIdentifier/doi/10.15244/pjoes/84922
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Hard
publisher.none.fl_str_mv Hard
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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