Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system
- Autores
- Azaro, Macarena Soledad; Flores, Federico Manuel; Casella, Mónica Laura; Peroni, María Belén; Rodríguez, C.; Torres Sánchez, Rosa María; Jaworski, María Angélica
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- It is known that the excess of oxyanions such as NO⁻₃ and BrO⁻₃ in drinking water affects its quality. In this work, three adsorbents (montmorillonite (Mt), silica (Si), and diatomaceous earth) loaded with hexadecyl- (H) and octadecyl-trimethylammonium (O) were used to remove these oxyanions from aqueous solutions by adsorption. In batch systems, the highest NO⁻₃ removal was obtained with Mt modified with H and O (Mt-H and Mt-O), attaining 33% and 50%, respectively, while for BrO⁻₃ removal Si modified with H and O, Si-H and Si-O samples, reached 38% and 42%, respectively. A direct relationship between the adsorption capacity of NO⁻₃ and BrO⁻₃ and the mass of the adsorbent was found in column filtration tests with Mt-O and Mt-H samples in standard solution and real groundwater samples. The adsorption capacity of the column, in the groundwater sample, remained constant after two reuses.The results obtained are promising for the development of a continuous oxyanion removal system containing the low-cost clay Mt modified with either H or O.
Centro de Tecnología de Recursos Minerales y Cerámica
Centro de Investigación y Desarrollo en Ciencias Aplicadas
Facultad de Ingeniería - Materia
-
Química
Adsorption
Bromate
Column filtration
Nitrate
Organo-montmorillonite - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/125969
Ver los metadatos del registro completo
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Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination systemAzaro, Macarena SoledadFlores, Federico ManuelCasella, Mónica LauraPeroni, María BelénRodríguez, C.Torres Sánchez, Rosa MaríaJaworski, María AngélicaQuímicaAdsorptionBromateColumn filtrationNitrateOrgano-montmorilloniteIt is known that the excess of oxyanions such as NO⁻₃ and BrO⁻₃ in drinking water affects its quality. In this work, three adsorbents (montmorillonite (Mt), silica (Si), and diatomaceous earth) loaded with hexadecyl- (H) and octadecyl-trimethylammonium (O) were used to remove these oxyanions from aqueous solutions by adsorption. In batch systems, the highest NO⁻₃ removal was obtained with Mt modified with H and O (Mt-H and Mt-O), attaining 33% and 50%, respectively, while for BrO⁻₃ removal Si modified with H and O, Si-H and Si-O samples, reached 38% and 42%, respectively. A direct relationship between the adsorption capacity of NO⁻₃ and BrO⁻₃ and the mass of the adsorbent was found in column filtration tests with Mt-O and Mt-H samples in standard solution and real groundwater samples. The adsorption capacity of the column, in the groundwater sample, remained constant after two reuses.The results obtained are promising for the development of a continuous oxyanion removal system containing the low-cost clay Mt modified with either H or O.Centro de Tecnología de Recursos Minerales y CerámicaCentro de Investigación y Desarrollo en Ciencias AplicadasFacultad de Ingeniería2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1243-1252http://sedici.unlp.edu.ar/handle/10915/125969enginfo:eu-repo/semantics/altIdentifier/issn/1606-9749info:eu-repo/semantics/altIdentifier/issn/1607-0798info:eu-repo/semantics/altIdentifier/doi/10.2166/ws.2020.324info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:02:23Zoai:sedici.unlp.edu.ar:10915/125969Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:02:23.824SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system |
title |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system |
spellingShingle |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system Azaro, Macarena Soledad Química Adsorption Bromate Column filtration Nitrate Organo-montmorillonite |
title_short |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system |
title_full |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system |
title_fullStr |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system |
title_full_unstemmed |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system |
title_sort |
Synthesis and characterization of adsorbents for the elimination of nitrates and bromates from water aiming to develop a continuous oxyanion water elimination system |
dc.creator.none.fl_str_mv |
Azaro, Macarena Soledad Flores, Federico Manuel Casella, Mónica Laura Peroni, María Belén Rodríguez, C. Torres Sánchez, Rosa María Jaworski, María Angélica |
author |
Azaro, Macarena Soledad |
author_facet |
Azaro, Macarena Soledad Flores, Federico Manuel Casella, Mónica Laura Peroni, María Belén Rodríguez, C. Torres Sánchez, Rosa María Jaworski, María Angélica |
author_role |
author |
author2 |
Flores, Federico Manuel Casella, Mónica Laura Peroni, María Belén Rodríguez, C. Torres Sánchez, Rosa María Jaworski, María Angélica |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Química Adsorption Bromate Column filtration Nitrate Organo-montmorillonite |
topic |
Química Adsorption Bromate Column filtration Nitrate Organo-montmorillonite |
dc.description.none.fl_txt_mv |
It is known that the excess of oxyanions such as NO⁻₃ and BrO⁻₃ in drinking water affects its quality. In this work, three adsorbents (montmorillonite (Mt), silica (Si), and diatomaceous earth) loaded with hexadecyl- (H) and octadecyl-trimethylammonium (O) were used to remove these oxyanions from aqueous solutions by adsorption. In batch systems, the highest NO⁻₃ removal was obtained with Mt modified with H and O (Mt-H and Mt-O), attaining 33% and 50%, respectively, while for BrO⁻₃ removal Si modified with H and O, Si-H and Si-O samples, reached 38% and 42%, respectively. A direct relationship between the adsorption capacity of NO⁻₃ and BrO⁻₃ and the mass of the adsorbent was found in column filtration tests with Mt-O and Mt-H samples in standard solution and real groundwater samples. The adsorption capacity of the column, in the groundwater sample, remained constant after two reuses.The results obtained are promising for the development of a continuous oxyanion removal system containing the low-cost clay Mt modified with either H or O. Centro de Tecnología de Recursos Minerales y Cerámica Centro de Investigación y Desarrollo en Ciencias Aplicadas Facultad de Ingeniería |
description |
It is known that the excess of oxyanions such as NO⁻₃ and BrO⁻₃ in drinking water affects its quality. In this work, three adsorbents (montmorillonite (Mt), silica (Si), and diatomaceous earth) loaded with hexadecyl- (H) and octadecyl-trimethylammonium (O) were used to remove these oxyanions from aqueous solutions by adsorption. In batch systems, the highest NO⁻₃ removal was obtained with Mt modified with H and O (Mt-H and Mt-O), attaining 33% and 50%, respectively, while for BrO⁻₃ removal Si modified with H and O, Si-H and Si-O samples, reached 38% and 42%, respectively. A direct relationship between the adsorption capacity of NO⁻₃ and BrO⁻₃ and the mass of the adsorbent was found in column filtration tests with Mt-O and Mt-H samples in standard solution and real groundwater samples. The adsorption capacity of the column, in the groundwater sample, remained constant after two reuses.The results obtained are promising for the development of a continuous oxyanion removal system containing the low-cost clay Mt modified with either H or O. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/125969 |
url |
http://sedici.unlp.edu.ar/handle/10915/125969 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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eu_rights_str_mv |
openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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