Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater

Autores
Botto, Irma Lia; González, María José; Gazzoli, Delia; Soto, Edgardo Luis
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Low-cost adsorbents constituted by Fe-modified-aluminosilicates (laminar and zeolite type minerals) were developed and characterized to be used in the arsenic removal from groundwater. Iron activation was carried out “in situ” by the synthesis and deposition of mesoporous ferrihydrite. Natural iron-rich aluminosilicate was used as reference. All samples were characterized by X-ray diffraction, Raman spectroscopy, BET N2-adsorption, SEM-EDS microscopy and ICP chemical analysis. Experimental results of arsenic sorption showed that iron-poor raw materials were not active, unlike iron activated samples. The iron loading in all activated samples was below 5% (expressed as Fe2O3), whereas the removal capacity of these samples reaches between 200-700 µg of As by g of adsorbent, after reusing between 17 cycles and 70 cycles up to adsorbent saturation. Differences can be associated to mineral structure and to the surface charge modification by iron deposition, affecting the attraction of the As-oxoanion. On the basis of low-cost raw materials, the easy chemical process for activation shows that these materials are potentially attractive for As(V) removal. Likewise, the activation of clay minerals, with natural high content of iron, seems to be a good strategy to enhance the arsenic adsorption ability and consequently the useful life of the adsorbent.
Fil: Botto, Irma Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Química Inorgánica; Argentina
Fil: González, María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Química Inorgánica; Argentina. Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Instituto de Recursos Minerales; Argentina
Fil: Gazzoli, Delia. Universita di Roma La Sapienza. Dipartimento di Chimica; Italia
Fil: Soto, Edgardo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Planta Piloto Multiproposito; Argentina
Materia
Arsenic removal
Aluminosilicates
Iron activation
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:11336/4821
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/4821
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Iron Activation of Natural Aluminosilicates to Remove Arsenic from GroundwaterBotto, Irma LiaGonzález, María JoséGazzoli, DeliaSoto, Edgardo LuisArsenic removalAluminosilicatesIron activationhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Low-cost adsorbents constituted by Fe-modified-aluminosilicates (laminar and zeolite type minerals) were developed and characterized to be used in the arsenic removal from groundwater. Iron activation was carried out “in situ” by the synthesis and deposition of mesoporous ferrihydrite. Natural iron-rich aluminosilicate was used as reference. All samples were characterized by X-ray diffraction, Raman spectroscopy, BET N2-adsorption, SEM-EDS microscopy and ICP chemical analysis. Experimental results of arsenic sorption showed that iron-poor raw materials were not active, unlike iron activated samples. The iron loading in all activated samples was below 5% (expressed as Fe2O3), whereas the removal capacity of these samples reaches between 200-700 µg of As by g of adsorbent, after reusing between 17 cycles and 70 cycles up to adsorbent saturation. Differences can be associated to mineral structure and to the surface charge modification by iron deposition, affecting the attraction of the As-oxoanion. On the basis of low-cost raw materials, the easy chemical process for activation shows that these materials are potentially attractive for As(V) removal. Likewise, the activation of clay minerals, with natural high content of iron, seems to be a good strategy to enhance the arsenic adsorption ability and consequently the useful life of the adsorbent.Fil: Botto, Irma Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Química Inorgánica; ArgentinaFil: González, María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Química Inorgánica; Argentina. Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Instituto de Recursos Minerales; ArgentinaFil: Gazzoli, Delia. Universita di Roma La Sapienza. Dipartimento di Chimica; ItaliaFil: Soto, Edgardo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Planta Piloto Multiproposito; ArgentinaDavid Publishing Company2013-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4821Botto, Irma Lia; González, María José; Gazzoli, Delia; Soto, Edgardo Luis; Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater; David Publishing Company; Journal of Environmental Science and Engineering A; 2; 12; 20-12-2013; 744-7521934-8932enginfo:eu-repo/semantics/altIdentifier/url/http://www.davidpublisher.org/index.php/Home/Article/index?id=2041.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.17265/2162-5298/2013.12.006info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T12:32:53Zoai:ri.conicet.gov.ar:11336/4821instacron: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:34982025-10-29 12:32:53.303CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
title Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
spellingShingle Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
Botto, Irma Lia
Arsenic removal
Aluminosilicates
Iron activation
title_short Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
title_full Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
title_fullStr Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
title_full_unstemmed Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
title_sort Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater
dc.creator.none.fl_str_mv Botto, Irma Lia
González, María José
Gazzoli, Delia
Soto, Edgardo Luis
author Botto, Irma Lia
author_facet Botto, Irma Lia
González, María José
Gazzoli, Delia
Soto, Edgardo Luis
author_role author
author2 González, María José
Gazzoli, Delia
Soto, Edgardo Luis
author2_role author
author
author
dc.subject.none.fl_str_mv Arsenic removal
Aluminosilicates
Iron activation
topic Arsenic removal
Aluminosilicates
Iron activation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Low-cost adsorbents constituted by Fe-modified-aluminosilicates (laminar and zeolite type minerals) were developed and characterized to be used in the arsenic removal from groundwater. Iron activation was carried out “in situ” by the synthesis and deposition of mesoporous ferrihydrite. Natural iron-rich aluminosilicate was used as reference. All samples were characterized by X-ray diffraction, Raman spectroscopy, BET N2-adsorption, SEM-EDS microscopy and ICP chemical analysis. Experimental results of arsenic sorption showed that iron-poor raw materials were not active, unlike iron activated samples. The iron loading in all activated samples was below 5% (expressed as Fe2O3), whereas the removal capacity of these samples reaches between 200-700 µg of As by g of adsorbent, after reusing between 17 cycles and 70 cycles up to adsorbent saturation. Differences can be associated to mineral structure and to the surface charge modification by iron deposition, affecting the attraction of the As-oxoanion. On the basis of low-cost raw materials, the easy chemical process for activation shows that these materials are potentially attractive for As(V) removal. Likewise, the activation of clay minerals, with natural high content of iron, seems to be a good strategy to enhance the arsenic adsorption ability and consequently the useful life of the adsorbent.
Fil: Botto, Irma Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Química Inorgánica; Argentina
Fil: González, María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Química Inorgánica; Argentina. Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Instituto de Recursos Minerales; Argentina
Fil: Gazzoli, Delia. Universita di Roma La Sapienza. Dipartimento di Chimica; Italia
Fil: Soto, Edgardo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Investigación y Desarrollo En Ciencias Aplicadas; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Planta Piloto Multiproposito; Argentina
description Low-cost adsorbents constituted by Fe-modified-aluminosilicates (laminar and zeolite type minerals) were developed and characterized to be used in the arsenic removal from groundwater. Iron activation was carried out “in situ” by the synthesis and deposition of mesoporous ferrihydrite. Natural iron-rich aluminosilicate was used as reference. All samples were characterized by X-ray diffraction, Raman spectroscopy, BET N2-adsorption, SEM-EDS microscopy and ICP chemical analysis. Experimental results of arsenic sorption showed that iron-poor raw materials were not active, unlike iron activated samples. The iron loading in all activated samples was below 5% (expressed as Fe2O3), whereas the removal capacity of these samples reaches between 200-700 µg of As by g of adsorbent, after reusing between 17 cycles and 70 cycles up to adsorbent saturation. Differences can be associated to mineral structure and to the surface charge modification by iron deposition, affecting the attraction of the As-oxoanion. On the basis of low-cost raw materials, the easy chemical process for activation shows that these materials are potentially attractive for As(V) removal. Likewise, the activation of clay minerals, with natural high content of iron, seems to be a good strategy to enhance the arsenic adsorption ability and consequently the useful life of the adsorbent.
publishDate 2013
dc.date.none.fl_str_mv 2013-12-20
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/11336/4821
Botto, Irma Lia; González, María José; Gazzoli, Delia; Soto, Edgardo Luis; Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater; David Publishing Company; Journal of Environmental Science and Engineering A; 2; 12; 20-12-2013; 744-752
1934-8932
url http://hdl.handle.net/11336/4821
identifier_str_mv Botto, Irma Lia; González, María José; Gazzoli, Delia; Soto, Edgardo Luis; Iron Activation of Natural Aluminosilicates to Remove Arsenic from Groundwater; David Publishing Company; Journal of Environmental Science and Engineering A; 2; 12; 20-12-2013; 744-752
1934-8932
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.davidpublisher.org/index.php/Home/Article/index?id=2041.html
info:eu-repo/semantics/altIdentifier/doi/10.17265/2162-5298/2013.12.006
info:eu-repo/semantics/altIdentifier/doi/
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
dc.publisher.none.fl_str_mv David Publishing Company
publisher.none.fl_str_mv David Publishing Company
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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score 13.10058

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