Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions

This work evaluates the use of a synthetic NaP1 zeolite obtained from a hazardous Al-containing waste for the removal of ammonium (NH4+) from aqueous solutions by batch experiments. Experimental parameters, such as pH (6–8), contact time (1–360 min), adsorbent dose (1–15 g/L), and initial NH4+ conce...

Descripción completa

Detalles Bibliográficos
Autores: Sánchez-Hernández, R., Padilla, Isabel, López-Andrés, Sol, López-Delgado, Aurora
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/171099
Acceso en línea:http://hdl.handle.net/10261/171099
Access Level:acceso abierto
Palabra clave:Zeolite adsorbent
NaP1 zeolite
Removal ammonium
id ES_fe5c8bb1373b5a3382d24b3fd770855d
oai_identifier_str oai:digital.csic.es:10261/171099
network_acronym_str ES
network_name_str España
repository_id_str
spelling Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous SolutionsSánchez-Hernández, R.Padilla, IsabelLópez-Andrés, SolLópez-Delgado, AuroraZeolite adsorbentNaP1 zeoliteRemoval ammoniumThis work evaluates the use of a synthetic NaP1 zeolite obtained from a hazardous Al-containing waste for the removal of ammonium (NH4+) from aqueous solutions by batch experiments. Experimental parameters, such as pH (6–8), contact time (1–360 min), adsorbent dose (1–15 g/L), and initial NH4+ concentration (10–1500 mg/L), were evaluated. Adsorption kinetic models and equilibrium isotherms were determined by using nonlinear regression. The kinetic was studied by applying both the pseudo-first-order and pseudo-second-order models. The equilibrium isotherms were analyzed according to two-parameter equations (Freundlich, Langmuir, and Temkin) and three-parameter equations (Redlich–Peterson, Sips, and Toth). The results showed that the NH4+ uptake on NaP1 was fast (15 min) leading to a high experimental sorption capacity (37.9 mg/g). The NH4+ removal on NaP1 was a favorable process that followed the pseudo-first-order kinetic model. The NH4+ adsorption was better described by the Sips (54.2 mg/g) and Toth (58.5 mg/g) models. NaP1 zeolite from Al-waste showed good NH4+ sorption properties, becoming a potential adsorbent to be used in the treatment of contaminated aqueous effluents. Thus, a synergic effect on the environmental protection can be achieved: the end of waste condition of a hazardous waste and the water decontamination.The authors thank MINECO for its financial support (Project CTM2012-34449). R. Sánchez-Hernández thanks MINECO for the grant BES-2013-066269. The authors thank the Research Support Centre of the Geology Faculty, University Complutense of Madrid, for the help given.Peer ReviewedHindawi Publishing CorporationMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2018201820182018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/171099reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1155/2018/1256197Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1710992026-05-22T06:33:51Z
dc.title.none.fl_str_mv Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
title Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
spellingShingle Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
Sánchez-Hernández, R.
Zeolite adsorbent
NaP1 zeolite
Removal ammonium
title_short Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
title_full Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
title_fullStr Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
title_full_unstemmed Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
title_sort Al-Waste-Based Zeolite Adsorbent Used for the Removal of Ammonium from Aqueous Solutions
dc.creator.none.fl_str_mv Sánchez-Hernández, R.
Padilla, Isabel
López-Andrés, Sol
López-Delgado, Aurora
author Sánchez-Hernández, R.
author_facet Sánchez-Hernández, R.
Padilla, Isabel
López-Andrés, Sol
López-Delgado, Aurora
author_role author
author2 Padilla, Isabel
López-Andrés, Sol
López-Delgado, Aurora
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Zeolite adsorbent
NaP1 zeolite
Removal ammonium
topic Zeolite adsorbent
NaP1 zeolite
Removal ammonium
description This work evaluates the use of a synthetic NaP1 zeolite obtained from a hazardous Al-containing waste for the removal of ammonium (NH4+) from aqueous solutions by batch experiments. Experimental parameters, such as pH (6–8), contact time (1–360 min), adsorbent dose (1–15 g/L), and initial NH4+ concentration (10–1500 mg/L), were evaluated. Adsorption kinetic models and equilibrium isotherms were determined by using nonlinear regression. The kinetic was studied by applying both the pseudo-first-order and pseudo-second-order models. The equilibrium isotherms were analyzed according to two-parameter equations (Freundlich, Langmuir, and Temkin) and three-parameter equations (Redlich–Peterson, Sips, and Toth). The results showed that the NH4+ uptake on NaP1 was fast (15 min) leading to a high experimental sorption capacity (37.9 mg/g). The NH4+ removal on NaP1 was a favorable process that followed the pseudo-first-order kinetic model. The NH4+ adsorption was better described by the Sips (54.2 mg/g) and Toth (58.5 mg/g) models. NaP1 zeolite from Al-waste showed good NH4+ sorption properties, becoming a potential adsorbent to be used in the treatment of contaminated aqueous effluents. Thus, a synergic effect on the environmental protection can be achieved: the end of waste condition of a hazardous waste and the water decontamination.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/171099
url http://hdl.handle.net/10261/171099
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1155/2018/1256197
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Hindawi Publishing Corporation
publisher.none.fl_str_mv Hindawi Publishing Corporation
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425678014742528
score 15,812429

Similares en LA Referencia