Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite

This article presents a study on cadmium, copper and lead removal by means of adsorption in a natural Na-bentonite. Influence of pH and ionic strength on clay fabric and its role on cation removal are analyzed by means of Zeta potential and sedimentation tests. Batch adsorption and kinetics tests we...

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Detalhes bibliográficos
Autores: Glatstein, Daniel Alejandro, Francisca, Franco Matias
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2015
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/135592
Acesso em linha:http://hdl.handle.net/11336/135592
Access Level:Acceso aberto
Palavra-chave:ADSORPTION
BENTONITE
CLAY MINERAL
EARTHEN LINER
HEAVY METAL
https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
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repository_id_str
spelling Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentoniteGlatstein, Daniel AlejandroFrancisca, Franco MatiasADSORPTIONBENTONITECLAY MINERALEARTHEN LINERHEAVY METALhttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2This article presents a study on cadmium, copper and lead removal by means of adsorption in a natural Na-bentonite. Influence of pH and ionic strength on clay fabric and its role on cation removal are analyzed by means of Zeta potential and sedimentation tests. Batch adsorption and kinetics tests were carried out to quantify the adsorption capacity of the bentonite at monospecies and multispecies conditions, where ion competition was analyzed. Experimental results show that ionic strength strongly affects clay structure and cadmium removal, but has little influence on lead and copper removal. Adsorption kinetics was fast in all cases, which was mostly related to reaction kinetics than to diffusion kinetics. Cadmium adsorption can be explained by linear adsorption models, while copper, lead and the multispecies tests showed good agreement with both the linear and Freundlich models within the tested concentration range. The results confirm that tested Na-bentonite possesses a high capacity for the removal of Cd, Cu and Pb.Fil: Glatstein, Daniel Alejandro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; ArgentinaFil: Francisca, Franco Matias. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; ArgentinaElsevier Science2015-12info: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/11336/135592Glatstein, Daniel Alejandro; Francisca, Franco Matias; Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite; Elsevier Science; Applied Clay Science; 118; 12-2015; 61-670169-1317CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.clay.2015.09.003info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169131715301113info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:44:17Zoai:ri.conicet.gov.ar:11336/135592instacron: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:34982024-05-08 13:44:17.744CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
title Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
spellingShingle Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
Glatstein, Daniel Alejandro
ADSORPTION
BENTONITE
CLAY MINERAL
EARTHEN LINER
HEAVY METAL
https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
title_short Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
title_full Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
title_fullStr Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
title_full_unstemmed Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
title_sort Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite
dc.creator.none.fl_str_mv Glatstein, Daniel Alejandro
Francisca, Franco Matias
author Glatstein, Daniel Alejandro
author_facet Glatstein, Daniel Alejandro
Francisca, Franco Matias
author_role author
author2 Francisca, Franco Matias
author2_role author
dc.subject.none.fl_str_mv ADSORPTION
BENTONITE
CLAY MINERAL
EARTHEN LINER
HEAVY METAL
https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
topic ADSORPTION
BENTONITE
CLAY MINERAL
EARTHEN LINER
HEAVY METAL
https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
description This article presents a study on cadmium, copper and lead removal by means of adsorption in a natural Na-bentonite. Influence of pH and ionic strength on clay fabric and its role on cation removal are analyzed by means of Zeta potential and sedimentation tests. Batch adsorption and kinetics tests were carried out to quantify the adsorption capacity of the bentonite at monospecies and multispecies conditions, where ion competition was analyzed. Experimental results show that ionic strength strongly affects clay structure and cadmium removal, but has little influence on lead and copper removal. Adsorption kinetics was fast in all cases, which was mostly related to reaction kinetics than to diffusion kinetics. Cadmium adsorption can be explained by linear adsorption models, while copper, lead and the multispecies tests showed good agreement with both the linear and Freundlich models within the tested concentration range. The results confirm that tested Na-bentonite possesses a high capacity for the removal of Cd, Cu and Pb.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
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/11336/135592
Glatstein, Daniel Alejandro; Francisca, Franco Matias; Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite; Elsevier Science; Applied Clay Science; 118; 12-2015; 61-67
0169-1317
CONICET Digital
CONICET
url http://hdl.handle.net/11336/135592
identifier_str_mv Glatstein, Daniel Alejandro; Francisca, Franco Matias; Influence of pH and ionic strength on Cd, Cu and Pb removal from water by adsorption in Na-bentonite; Elsevier Science; Applied Clay Science; 118; 12-2015; 61-67
0169-1317
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.clay.2015.09.003
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169131715301113
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 Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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score 15,812455

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