Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s12665-015-4929-y http://hdl.handle.net/11449/173120 |
Resumo: | Brazil is the third-largest producer of aluminium, with the red mud generated during the extraction of aluminium from bauxite through the Bayer process. The red mud has been studied for use as an adsorbent for removing of elements/compounds from wastewater and/or contaminated soil. However, there are several compounds and treatments that were not tested yet. In this study, the Cu(II) adsorption potential for natural red mud (NRN) and red mud activated by thermal treatment at 400 °C (TRM) and chemical treatment with hydrochloric acid (HCl) at 0.05 mol L−1 (CRM1) and calcium nitrate [Ca(NO3)2] 0.1 mol L−1 (CRM2) was evaluated using adsorption isotherms obtained by the Langmuir and Freundlich models. The NRM and TRM presented Cu(II) adsorptions of ca. 100 % in aqueous solution with lower concentrations of the metal (0.5 and 1.0 mmol 25 mL−1). The Langmuir isotherm was more appropriate to describe the phenomenon of Cu(II) removal using NRM, TRM, CRM1 and CRM2, with the thermally activated red mud presenting the highest adsorption capacity at 2.08 mmol g−1 for Cu(II). Thus, these results indicate that TRM has the potential for use in applications that treat effluents and/or contaminated soil from industrial activity. |
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Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatmentAluminium productionCu(II) adsorptionIsotherms modelsRed mudBrazil is the third-largest producer of aluminium, with the red mud generated during the extraction of aluminium from bauxite through the Bayer process. The red mud has been studied for use as an adsorbent for removing of elements/compounds from wastewater and/or contaminated soil. However, there are several compounds and treatments that were not tested yet. In this study, the Cu(II) adsorption potential for natural red mud (NRN) and red mud activated by thermal treatment at 400 °C (TRM) and chemical treatment with hydrochloric acid (HCl) at 0.05 mol L−1 (CRM1) and calcium nitrate [Ca(NO3)2] 0.1 mol L−1 (CRM2) was evaluated using adsorption isotherms obtained by the Langmuir and Freundlich models. The NRM and TRM presented Cu(II) adsorptions of ca. 100 % in aqueous solution with lower concentrations of the metal (0.5 and 1.0 mmol 25 mL−1). The Langmuir isotherm was more appropriate to describe the phenomenon of Cu(II) removal using NRM, TRM, CRM1 and CRM2, with the thermally activated red mud presenting the highest adsorption capacity at 2.08 mmol g−1 for Cu(II). Thus, these results indicate that TRM has the potential for use in applications that treat effluents and/or contaminated soil from industrial activity.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Instituto de Geociências e Ciências Exatas (IGCE) UNESP Universidade Estadual Paulista, Avenida 24-A, No. 1515, Bela VistaFaculdade de Engenharia de Bauru (FEB) UNESP Universidade Estadual PaulistaCentro de Estudos Ambientais (CEA) UNESP Universidade Estadual PaulistaUNESP Universidade Estadual Paulista Campus Experimental de SorocabaInstituto de Geociências e Ciências Exatas (IGCE) UNESP Universidade Estadual Paulista, Avenida 24-A, No. 1515, Bela VistaFaculdade de Engenharia de Bauru (FEB) UNESP Universidade Estadual PaulistaCentro de Estudos Ambientais (CEA) UNESP Universidade Estadual PaulistaUNESP Universidade Estadual Paulista Campus Experimental de SorocabaFAPESP: 2009/02374-0CNPq: 480555/2009-5Universidade Estadual Paulista (Unesp)da Conceição, Fabiano T. [UNESP]Pichinelli, Beatriz C. [UNESP]Silva, Mariana S. G. [UNESP]Moruzzi, Rodrigo Braga [UNESP]Menegário, Amauri Antonio [UNESP]Antunes, Maria Lucia Pereira [UNESP]2018-12-11T17:03:44Z2018-12-11T17:03:44Z2016-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-7application/pdfhttp://dx.doi.org/10.1007/s12665-015-4929-yEnvironmental Earth Sciences, v. 75, n. 5, p. 1-7, 2016.1866-62991866-6280http://hdl.handle.net/11449/17312010.1007/s12665-015-4929-y2-s2.0-849757600612-s2.0-84975760061.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental Earth Sciences0,552info:eu-repo/semantics/openAccess2024-04-10T19:22:25Zoai:repositorio.unesp.br:11449/173120Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:02:18.014100Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment |
title |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment |
spellingShingle |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment da Conceição, Fabiano T. [UNESP] Aluminium production Cu(II) adsorption Isotherms models Red mud |
title_short |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment |
title_full |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment |
title_fullStr |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment |
title_full_unstemmed |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment |
title_sort |
Cu(II) adsorption from aqueous solution using red mud activated by chemical and thermal treatment |
author |
da Conceição, Fabiano T. [UNESP] |
author_facet |
da Conceição, Fabiano T. [UNESP] Pichinelli, Beatriz C. [UNESP] Silva, Mariana S. G. [UNESP] Moruzzi, Rodrigo Braga [UNESP] Menegário, Amauri Antonio [UNESP] Antunes, Maria Lucia Pereira [UNESP] |
author_role |
author |
author2 |
Pichinelli, Beatriz C. [UNESP] Silva, Mariana S. G. [UNESP] Moruzzi, Rodrigo Braga [UNESP] Menegário, Amauri Antonio [UNESP] Antunes, Maria Lucia Pereira [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
da Conceição, Fabiano T. [UNESP] Pichinelli, Beatriz C. [UNESP] Silva, Mariana S. G. [UNESP] Moruzzi, Rodrigo Braga [UNESP] Menegário, Amauri Antonio [UNESP] Antunes, Maria Lucia Pereira [UNESP] |
dc.subject.por.fl_str_mv |
Aluminium production Cu(II) adsorption Isotherms models Red mud |
topic |
Aluminium production Cu(II) adsorption Isotherms models Red mud |
description |
Brazil is the third-largest producer of aluminium, with the red mud generated during the extraction of aluminium from bauxite through the Bayer process. The red mud has been studied for use as an adsorbent for removing of elements/compounds from wastewater and/or contaminated soil. However, there are several compounds and treatments that were not tested yet. In this study, the Cu(II) adsorption potential for natural red mud (NRN) and red mud activated by thermal treatment at 400 °C (TRM) and chemical treatment with hydrochloric acid (HCl) at 0.05 mol L−1 (CRM1) and calcium nitrate [Ca(NO3)2] 0.1 mol L−1 (CRM2) was evaluated using adsorption isotherms obtained by the Langmuir and Freundlich models. The NRM and TRM presented Cu(II) adsorptions of ca. 100 % in aqueous solution with lower concentrations of the metal (0.5 and 1.0 mmol 25 mL−1). The Langmuir isotherm was more appropriate to describe the phenomenon of Cu(II) removal using NRM, TRM, CRM1 and CRM2, with the thermally activated red mud presenting the highest adsorption capacity at 2.08 mmol g−1 for Cu(II). Thus, these results indicate that TRM has the potential for use in applications that treat effluents and/or contaminated soil from industrial activity. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-01 2018-12-11T17:03:44Z 2018-12-11T17:03:44Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s12665-015-4929-y Environmental Earth Sciences, v. 75, n. 5, p. 1-7, 2016. 1866-6299 1866-6280 http://hdl.handle.net/11449/173120 10.1007/s12665-015-4929-y 2-s2.0-84975760061 2-s2.0-84975760061.pdf |
url |
http://dx.doi.org/10.1007/s12665-015-4929-y http://hdl.handle.net/11449/173120 |
identifier_str_mv |
Environmental Earth Sciences, v. 75, n. 5, p. 1-7, 2016. 1866-6299 1866-6280 10.1007/s12665-015-4929-y 2-s2.0-84975760061 2-s2.0-84975760061.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Earth Sciences 0,552 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-7 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129014400811008 |