Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater

Autores
Saitua, Hugo Alberto; Gil, Raul Andres; Pérez Padilla, Antonio
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this research, the efficiency and the arsenic removal mechanism with a Nanofiltration (NF) pilot plant from naturally contaminated groundwater have been evaluated. The process integral evaluation at 7bar shows an arsenate (HAsO42-) rejection over 95% and a total sulfate (SO42-) rejection. Divalent ions calcium and magnesium (Ca2+ and Mg2+) rejection produced an 81% reduction of the total hardness. The total dissolved solids TDS concentration decreased to 53%. Monovalent ions moderated rejections contributed to the membrane hydraulics stability. The arsenate (HAsO42-) rejection from an electrolytes solution (SO42-, HCO3-, F-, Cl-, NO3-, Ca2+, Mg2+, K+ and Na+) was prevalently ruled by Donnan exclusion combined with the preferential passage of more permeable ions. Results show the importance of ionic composition on ion transmission and rejection in the studied membrane. Ion rejection in multicomponent solutions showed to be significantly different to that in individual salt solutions. Whereas monovalent anion rejections remarkably decreased, divalent cation rejections were three times superior. In arsenate rejection (HAsO42-) from artificially contaminated natural groundwater, the membrane showed the same selectivity.
Fil: Saitua, Hugo Alberto. Instituto de Investigaciones en Tecnología Química (INTEQUI), Facultad de Química, Bioquímica y Farmacia; Argentina
Fil: Gil, Raul Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química de San Luis; Argentina
Fil: Pérez Padilla, Antonio. Instituto de Investigaciones en Tecnología Química (INTEQUI), Facultad de Química, Bioquímica y Farmacia; Argentina
Materia
ARSENIC REMOVAL
DRINKING WATER
GROUNDWATER
NANOFILTRATION
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:11336/92848
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/92848
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network_name_str CONICET Digital (CONICET)
spelling Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwaterSaitua, Hugo AlbertoGil, Raul AndresPérez Padilla, AntonioARSENIC REMOVALDRINKING WATERGROUNDWATERNANOFILTRATIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this research, the efficiency and the arsenic removal mechanism with a Nanofiltration (NF) pilot plant from naturally contaminated groundwater have been evaluated. The process integral evaluation at 7bar shows an arsenate (HAsO42-) rejection over 95% and a total sulfate (SO42-) rejection. Divalent ions calcium and magnesium (Ca2+ and Mg2+) rejection produced an 81% reduction of the total hardness. The total dissolved solids TDS concentration decreased to 53%. Monovalent ions moderated rejections contributed to the membrane hydraulics stability. The arsenate (HAsO42-) rejection from an electrolytes solution (SO42-, HCO3-, F-, Cl-, NO3-, Ca2+, Mg2+, K+ and Na+) was prevalently ruled by Donnan exclusion combined with the preferential passage of more permeable ions. Results show the importance of ionic composition on ion transmission and rejection in the studied membrane. Ion rejection in multicomponent solutions showed to be significantly different to that in individual salt solutions. Whereas monovalent anion rejections remarkably decreased, divalent cation rejections were three times superior. In arsenate rejection (HAsO42-) from artificially contaminated natural groundwater, the membrane showed the same selectivity.Fil: Saitua, Hugo Alberto. Instituto de Investigaciones en Tecnología Química (INTEQUI), Facultad de Química, Bioquímica y Farmacia; ArgentinaFil: Gil, Raul Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química de San Luis; ArgentinaFil: Pérez Padilla, Antonio. Instituto de Investigaciones en Tecnología Química (INTEQUI), Facultad de Química, Bioquímica y Farmacia; ArgentinaElsevier Science2011-07-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/92848Saitua, Hugo Alberto; Gil, Raul Andres; Pérez Padilla, Antonio; Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater; Elsevier Science; Desalination; 274; 1-3; 20-7-2011; 1-60011-9164CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.desal.2011.02.044info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0011916411001810info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:38:52Zoai:ri.conicet.gov.ar:11336/92848instacron: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 15:38:53.047CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
title Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
spellingShingle Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
Saitua, Hugo Alberto
ARSENIC REMOVAL
DRINKING WATER
GROUNDWATER
NANOFILTRATION
title_short Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
title_full Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
title_fullStr Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
title_full_unstemmed Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
title_sort Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater
dc.creator.none.fl_str_mv Saitua, Hugo Alberto
Gil, Raul Andres
Pérez Padilla, Antonio
author Saitua, Hugo Alberto
author_facet Saitua, Hugo Alberto
Gil, Raul Andres
Pérez Padilla, Antonio
author_role author
author2 Gil, Raul Andres
Pérez Padilla, Antonio
author2_role author
author
dc.subject.none.fl_str_mv ARSENIC REMOVAL
DRINKING WATER
GROUNDWATER
NANOFILTRATION
topic ARSENIC REMOVAL
DRINKING WATER
GROUNDWATER
NANOFILTRATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this research, the efficiency and the arsenic removal mechanism with a Nanofiltration (NF) pilot plant from naturally contaminated groundwater have been evaluated. The process integral evaluation at 7bar shows an arsenate (HAsO42-) rejection over 95% and a total sulfate (SO42-) rejection. Divalent ions calcium and magnesium (Ca2+ and Mg2+) rejection produced an 81% reduction of the total hardness. The total dissolved solids TDS concentration decreased to 53%. Monovalent ions moderated rejections contributed to the membrane hydraulics stability. The arsenate (HAsO42-) rejection from an electrolytes solution (SO42-, HCO3-, F-, Cl-, NO3-, Ca2+, Mg2+, K+ and Na+) was prevalently ruled by Donnan exclusion combined with the preferential passage of more permeable ions. Results show the importance of ionic composition on ion transmission and rejection in the studied membrane. Ion rejection in multicomponent solutions showed to be significantly different to that in individual salt solutions. Whereas monovalent anion rejections remarkably decreased, divalent cation rejections were three times superior. In arsenate rejection (HAsO42-) from artificially contaminated natural groundwater, the membrane showed the same selectivity.
Fil: Saitua, Hugo Alberto. Instituto de Investigaciones en Tecnología Química (INTEQUI), Facultad de Química, Bioquímica y Farmacia; Argentina
Fil: Gil, Raul Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química de San Luis; Argentina
Fil: Pérez Padilla, Antonio. Instituto de Investigaciones en Tecnología Química (INTEQUI), Facultad de Química, Bioquímica y Farmacia; Argentina
description In this research, the efficiency and the arsenic removal mechanism with a Nanofiltration (NF) pilot plant from naturally contaminated groundwater have been evaluated. The process integral evaluation at 7bar shows an arsenate (HAsO42-) rejection over 95% and a total sulfate (SO42-) rejection. Divalent ions calcium and magnesium (Ca2+ and Mg2+) rejection produced an 81% reduction of the total hardness. The total dissolved solids TDS concentration decreased to 53%. Monovalent ions moderated rejections contributed to the membrane hydraulics stability. The arsenate (HAsO42-) rejection from an electrolytes solution (SO42-, HCO3-, F-, Cl-, NO3-, Ca2+, Mg2+, K+ and Na+) was prevalently ruled by Donnan exclusion combined with the preferential passage of more permeable ions. Results show the importance of ionic composition on ion transmission and rejection in the studied membrane. Ion rejection in multicomponent solutions showed to be significantly different to that in individual salt solutions. Whereas monovalent anion rejections remarkably decreased, divalent cation rejections were three times superior. In arsenate rejection (HAsO42-) from artificially contaminated natural groundwater, the membrane showed the same selectivity.
publishDate 2011
dc.date.none.fl_str_mv 2011-07-20
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/11336/92848
Saitua, Hugo Alberto; Gil, Raul Andres; Pérez Padilla, Antonio; Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater; Elsevier Science; Desalination; 274; 1-3; 20-7-2011; 1-6
0011-9164
CONICET Digital
CONICET
url http://hdl.handle.net/11336/92848
identifier_str_mv Saitua, Hugo Alberto; Gil, Raul Andres; Pérez Padilla, Antonio; Experimental investigation on arsenic removal with a nanofiltration pilot plant from naturally contaminated groundwater; Elsevier Science; Desalination; 274; 1-3; 20-7-2011; 1-6
0011-9164
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.desal.2011.02.044
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0011916411001810
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 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
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 13.22299

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