Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Acta scientiarum. Technology (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/13364 |
Resumo: | This paper evaluated the adsorption capacity of zinc by Bofe bentonite clay. Bofe clay was subjected to a thermal treatment for optimizing its adsorption capacity. The kinetic equilibrium of the process was studied in a finite bath system and experiments were performed by varying pH, the amount of adsorbent and initial concentration of the metal. The Langmuir and Freundlich models were used for the analysis of adsorption equilibrium. The physicochemical characterization of clay, before and after the adsorption process, included the techniques of scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction and N2 physisorption. The calcined Bofe clay is able to remove zinc from synthetic wastewater. Langmuir model provided the best fit for sorption isotherms with a maximum amount of metal adsorbed of 4.95 mg of metal g-1 of calcined clay. The adsorption was strongly influenced by the initial conditions and modifies the physicochemical characteristics of the clay. |
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Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364“Bofe”heavy metalwastewater3.07.02.00-3This paper evaluated the adsorption capacity of zinc by Bofe bentonite clay. Bofe clay was subjected to a thermal treatment for optimizing its adsorption capacity. The kinetic equilibrium of the process was studied in a finite bath system and experiments were performed by varying pH, the amount of adsorbent and initial concentration of the metal. The Langmuir and Freundlich models were used for the analysis of adsorption equilibrium. The physicochemical characterization of clay, before and after the adsorption process, included the techniques of scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction and N2 physisorption. The calcined Bofe clay is able to remove zinc from synthetic wastewater. Langmuir model provided the best fit for sorption isotherms with a maximum amount of metal adsorbed of 4.95 mg of metal g-1 of calcined clay. The adsorption was strongly influenced by the initial conditions and modifies the physicochemical characteristics of the clay. Universidade Estadual De Maringá2012-12-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionadsorçãoapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1336410.4025/actascitechnol.v35i2.13364Acta Scientiarum. Technology; Vol 35 No 2 (2013); 352-332Acta Scientiarum. Technology; v. 35 n. 2 (2013); 352-3321806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/13364/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/13364/pdf_1Araujo, Ana Lucia Pereira deBertagnolli, CarolineSilva, Meuris Gurgel Carlos daGimenes, Marcelino LuizBarros, Maria Angélica Simões Dornellas deinfo:eu-repo/semantics/openAccess2024-05-17T13:03:24Zoai:periodicos.uem.br/ojs:article/13364Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:03:24Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 |
title |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 |
spellingShingle |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 Araujo, Ana Lucia Pereira de “Bofe” heavy metal wastewater 3.07.02.00-3 |
title_short |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 |
title_full |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 |
title_fullStr |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 |
title_full_unstemmed |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 |
title_sort |
Zinc adsorption in bentonite clay: influence of pH and initial concentration - doi: 10.4025/actascitechnol.v35i2.13364 |
author |
Araujo, Ana Lucia Pereira de |
author_facet |
Araujo, Ana Lucia Pereira de Bertagnolli, Caroline Silva, Meuris Gurgel Carlos da Gimenes, Marcelino Luiz Barros, Maria Angélica Simões Dornellas de |
author_role |
author |
author2 |
Bertagnolli, Caroline Silva, Meuris Gurgel Carlos da Gimenes, Marcelino Luiz Barros, Maria Angélica Simões Dornellas de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Araujo, Ana Lucia Pereira de Bertagnolli, Caroline Silva, Meuris Gurgel Carlos da Gimenes, Marcelino Luiz Barros, Maria Angélica Simões Dornellas de |
dc.subject.por.fl_str_mv |
“Bofe” heavy metal wastewater 3.07.02.00-3 |
topic |
“Bofe” heavy metal wastewater 3.07.02.00-3 |
description |
This paper evaluated the adsorption capacity of zinc by Bofe bentonite clay. Bofe clay was subjected to a thermal treatment for optimizing its adsorption capacity. The kinetic equilibrium of the process was studied in a finite bath system and experiments were performed by varying pH, the amount of adsorbent and initial concentration of the metal. The Langmuir and Freundlich models were used for the analysis of adsorption equilibrium. The physicochemical characterization of clay, before and after the adsorption process, included the techniques of scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction and N2 physisorption. The calcined Bofe clay is able to remove zinc from synthetic wastewater. Langmuir model provided the best fit for sorption isotherms with a maximum amount of metal adsorbed of 4.95 mg of metal g-1 of calcined clay. The adsorption was strongly influenced by the initial conditions and modifies the physicochemical characteristics of the clay. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-03 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion adsorção |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/13364 10.4025/actascitechnol.v35i2.13364 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/13364 |
identifier_str_mv |
10.4025/actascitechnol.v35i2.13364 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/13364/pdf http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/13364/pdf_1 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 35 No 2 (2013); 352-332 Acta Scientiarum. Technology; v. 35 n. 2 (2013); 352-332 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
_version_ |
1799315334359941120 |