Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations
- Autores
- Lan, Luis E.; Reina, Fernando Damián; De Seta, Graciela E.; Meichtry, Jorge Martin; Litter, Marta Irene
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The presence of arsenic in water for human consumption is of concern, especially in developing countries, and the design of simple and economic treatments for arsenic removal is imperative. In this paper, three low-cost technologies were evaluated for As(V) or As(III) (5 mg L−1) removal: (1) zerovalent iron (Fe(0)), as powdered (μFe(0)) and iron wool (wFe(0)); (2) coagulation-flocculation with Al2(SO4)3 or FeCl3; and (3) adsorption on a natural clay. μFe(0) was more efficient than wFe(0), requiring a minimal dose of 0.25 g L−1 to achieve [As(V)] < 0.01 mg L−1 after 288 h; the reaction time was reduced to 168 h under stirring. When starting from As(III), partial oxidation to As(V) was observed, and removal was not complete even after 648 h with 1 g L−1 μFe(0). As(V) removal using FeCl3 and Al2(SO4)3 was very fast and completed in 15 min with 0.25 g L−1 of both reagents. However, Al2(SO4)3 was not efficient to remove As(III). With the clay, doses higher than 50 g L−1 and times longer than 648 h were needed to remove both As species. Arsenic leached from μFe(0) used to treat As(III) was almost negligible. Thus, Fe(0) may be the best alternative for low-cost, small-scale applications.
Fil: Lan, Luis E.. Universidad Tecnológica Nacional; Argentina
Fil: Reina, Fernando Damián. Universidad Tecnológica Nacional; Argentina
Fil: De Seta, Graciela E.. Universidad Tecnológica Nacional; Argentina
Fil: Meichtry, Jorge Martin. Universidad Tecnológica Nacional; Argentina. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Litter, Marta Irene. Centro de Investigacion Sobre Territorio, Transporte y Medio Ambiente (citta-unsam) ; Escuela de Hábitat y Sostenibilidad ; Universidad Nacional de San Martin; . Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
ADSORPTION
ARSENIC
CLAY
COAGULATION-FLOCCULATION
ZEROVALENT IRON - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/220303
Ver los metadatos del registro completo
| id |
CONICETDig_49604315513c6c9f16e6f4c334b822f2 |
|---|---|
| oai_identifier_str |
oai:ri.conicet.gov.ar:11336/220303 |
| network_acronym_str |
CONICETDig |
| repository_id_str |
3498 |
| network_name_str |
CONICET Digital (CONICET) |
| spelling |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High ConcentrationsLan, Luis E.Reina, Fernando DamiánDe Seta, Graciela E.Meichtry, Jorge MartinLitter, Marta IreneADSORPTIONARSENICCLAYCOAGULATION-FLOCCULATIONZEROVALENT IRONhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The presence of arsenic in water for human consumption is of concern, especially in developing countries, and the design of simple and economic treatments for arsenic removal is imperative. In this paper, three low-cost technologies were evaluated for As(V) or As(III) (5 mg L−1) removal: (1) zerovalent iron (Fe(0)), as powdered (μFe(0)) and iron wool (wFe(0)); (2) coagulation-flocculation with Al2(SO4)3 or FeCl3; and (3) adsorption on a natural clay. μFe(0) was more efficient than wFe(0), requiring a minimal dose of 0.25 g L−1 to achieve [As(V)] < 0.01 mg L−1 after 288 h; the reaction time was reduced to 168 h under stirring. When starting from As(III), partial oxidation to As(V) was observed, and removal was not complete even after 648 h with 1 g L−1 μFe(0). As(V) removal using FeCl3 and Al2(SO4)3 was very fast and completed in 15 min with 0.25 g L−1 of both reagents. However, Al2(SO4)3 was not efficient to remove As(III). With the clay, doses higher than 50 g L−1 and times longer than 648 h were needed to remove both As species. Arsenic leached from μFe(0) used to treat As(III) was almost negligible. Thus, Fe(0) may be the best alternative for low-cost, small-scale applications.Fil: Lan, Luis E.. Universidad Tecnológica Nacional; ArgentinaFil: Reina, Fernando Damián. Universidad Tecnológica Nacional; ArgentinaFil: De Seta, Graciela E.. Universidad Tecnológica Nacional; ArgentinaFil: Meichtry, Jorge Martin. Universidad Tecnológica Nacional; Argentina. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Litter, Marta Irene. Centro de Investigacion Sobre Territorio, Transporte y Medio Ambiente (citta-unsam) ; Escuela de Hábitat y Sostenibilidad ; Universidad Nacional de San Martin; . Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaMDPI2023-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/220303Lan, Luis E.; Reina, Fernando Damián; De Seta, Graciela E.; Meichtry, Jorge Martin; Litter, Marta Irene; Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations; MDPI; Water; 15; 8; 4-2023; 1-192073-4441CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4441/15/8/1481info:eu-repo/semantics/altIdentifier/doi/10.3390/w15081481info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:23Zoai:ri.conicet.gov.ar:11336/220303instacron: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:34982025-09-03 10:10:23.472CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations |
| title |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations |
| spellingShingle |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations Lan, Luis E. ADSORPTION ARSENIC CLAY COAGULATION-FLOCCULATION ZEROVALENT IRON |
| title_short |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations |
| title_full |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations |
| title_fullStr |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations |
| title_full_unstemmed |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations |
| title_sort |
Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations |
| dc.creator.none.fl_str_mv |
Lan, Luis E. Reina, Fernando Damián De Seta, Graciela E. Meichtry, Jorge Martin Litter, Marta Irene |
| author |
Lan, Luis E. |
| author_facet |
Lan, Luis E. Reina, Fernando Damián De Seta, Graciela E. Meichtry, Jorge Martin Litter, Marta Irene |
| author_role |
author |
| author2 |
Reina, Fernando Damián De Seta, Graciela E. Meichtry, Jorge Martin Litter, Marta Irene |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
ADSORPTION ARSENIC CLAY COAGULATION-FLOCCULATION ZEROVALENT IRON |
| topic |
ADSORPTION ARSENIC CLAY COAGULATION-FLOCCULATION ZEROVALENT IRON |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/2.7 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
The presence of arsenic in water for human consumption is of concern, especially in developing countries, and the design of simple and economic treatments for arsenic removal is imperative. In this paper, three low-cost technologies were evaluated for As(V) or As(III) (5 mg L−1) removal: (1) zerovalent iron (Fe(0)), as powdered (μFe(0)) and iron wool (wFe(0)); (2) coagulation-flocculation with Al2(SO4)3 or FeCl3; and (3) adsorption on a natural clay. μFe(0) was more efficient than wFe(0), requiring a minimal dose of 0.25 g L−1 to achieve [As(V)] < 0.01 mg L−1 after 288 h; the reaction time was reduced to 168 h under stirring. When starting from As(III), partial oxidation to As(V) was observed, and removal was not complete even after 648 h with 1 g L−1 μFe(0). As(V) removal using FeCl3 and Al2(SO4)3 was very fast and completed in 15 min with 0.25 g L−1 of both reagents. However, Al2(SO4)3 was not efficient to remove As(III). With the clay, doses higher than 50 g L−1 and times longer than 648 h were needed to remove both As species. Arsenic leached from μFe(0) used to treat As(III) was almost negligible. Thus, Fe(0) may be the best alternative for low-cost, small-scale applications. Fil: Lan, Luis E.. Universidad Tecnológica Nacional; Argentina Fil: Reina, Fernando Damián. Universidad Tecnológica Nacional; Argentina Fil: De Seta, Graciela E.. Universidad Tecnológica Nacional; Argentina Fil: Meichtry, Jorge Martin. Universidad Tecnológica Nacional; Argentina. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Litter, Marta Irene. Centro de Investigacion Sobre Territorio, Transporte y Medio Ambiente (citta-unsam) ; Escuela de Hábitat y Sostenibilidad ; Universidad Nacional de San Martin; . Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
| description |
The presence of arsenic in water for human consumption is of concern, especially in developing countries, and the design of simple and economic treatments for arsenic removal is imperative. In this paper, three low-cost technologies were evaluated for As(V) or As(III) (5 mg L−1) removal: (1) zerovalent iron (Fe(0)), as powdered (μFe(0)) and iron wool (wFe(0)); (2) coagulation-flocculation with Al2(SO4)3 or FeCl3; and (3) adsorption on a natural clay. μFe(0) was more efficient than wFe(0), requiring a minimal dose of 0.25 g L−1 to achieve [As(V)] < 0.01 mg L−1 after 288 h; the reaction time was reduced to 168 h under stirring. When starting from As(III), partial oxidation to As(V) was observed, and removal was not complete even after 648 h with 1 g L−1 μFe(0). As(V) removal using FeCl3 and Al2(SO4)3 was very fast and completed in 15 min with 0.25 g L−1 of both reagents. However, Al2(SO4)3 was not efficient to remove As(III). With the clay, doses higher than 50 g L−1 and times longer than 648 h were needed to remove both As species. Arsenic leached from μFe(0) used to treat As(III) was almost negligible. Thus, Fe(0) may be the best alternative for low-cost, small-scale applications. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-04 |
| 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/11336/220303 Lan, Luis E.; Reina, Fernando Damián; De Seta, Graciela E.; Meichtry, Jorge Martin; Litter, Marta Irene; Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations; MDPI; Water; 15; 8; 4-2023; 1-19 2073-4441 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/220303 |
| identifier_str_mv |
Lan, Luis E.; Reina, Fernando Damián; De Seta, Graciela E.; Meichtry, Jorge Martin; Litter, Marta Irene; Comparison between Different Technologies (Zerovalent Iron, Coagulation-Flocculation, Adsorption) for Arsenic Treatment at High Concentrations; MDPI; Water; 15; 8; 4-2023; 1-19 2073-4441 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4441/15/8/1481 info:eu-repo/semantics/altIdentifier/doi/10.3390/w15081481 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
| dc.format.none.fl_str_mv |
application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
MDPI |
| publisher.none.fl_str_mv |
MDPI |
| 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 |
| _version_ |
1842270117322293248 |
| score |
13.13397 |