Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322012000300019 |
Resumo: | Heavy metal removal by adsorption using rice husks as a bioadsorbent was evaluated as an alternative for wastewater treatment. Batch equilibrium experiments and kinetic sorption studies were performed using monocomponent solutions of Ni(II), Cd(II), Zn(II), Pb(II) and Cu(II) in surface samples of in natura(RH) and calcined rice husks (RHA). RHA showed higher potential for removing lead and copper. Experimental data for adsorption isotherms of lead and copper were adjusted by Langmuir, Freundlich and Dubinin-Radushkevick (D-R) models, being better represented by the Langmuir model. The calcination of RH increased its surface area, improving its adsorption properties. From a morphological analysis obtained by SEM and diffraction patterns (XRD), a longitudinal fibrous and amorphous structure was observed for RH. TGA resultsindicated a total mass loss of around 60% for RH and 24.5% for RHA. |
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Brazilian Journal of Chemical Engineering |
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Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluentsRice husksHeavy metalsBiosorptionHeavy metal removal by adsorption using rice husks as a bioadsorbent was evaluated as an alternative for wastewater treatment. Batch equilibrium experiments and kinetic sorption studies were performed using monocomponent solutions of Ni(II), Cd(II), Zn(II), Pb(II) and Cu(II) in surface samples of in natura(RH) and calcined rice husks (RHA). RHA showed higher potential for removing lead and copper. Experimental data for adsorption isotherms of lead and copper were adjusted by Langmuir, Freundlich and Dubinin-Radushkevick (D-R) models, being better represented by the Langmuir model. The calcination of RH increased its surface area, improving its adsorption properties. From a morphological analysis obtained by SEM and diffraction patterns (XRD), a longitudinal fibrous and amorphous structure was observed for RH. TGA resultsindicated a total mass loss of around 60% for RH and 24.5% for RHA.Brazilian Society of Chemical Engineering2012-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322012000300019Brazilian Journal of Chemical Engineering v.29 n.3 2012reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322012000300019info:eu-repo/semantics/openAccessVieira,M. G. A.Almeida Neto,A. F. deSilva,M. G. Carlos daNóbrega,C. C.Melo Filho,A. A.eng2012-10-25T00:00:00Zoai:scielo:S0104-66322012000300019Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2012-10-25T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents |
title |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents |
spellingShingle |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents Vieira,M. G. A. Rice husks Heavy metals Biosorption |
title_short |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents |
title_full |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents |
title_fullStr |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents |
title_full_unstemmed |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents |
title_sort |
Characterization and use of in natura and calcined rice husks for biosorption of heavy metals ions from aqueous effluents |
author |
Vieira,M. G. A. |
author_facet |
Vieira,M. G. A. Almeida Neto,A. F. de Silva,M. G. Carlos da Nóbrega,C. C. Melo Filho,A. A. |
author_role |
author |
author2 |
Almeida Neto,A. F. de Silva,M. G. Carlos da Nóbrega,C. C. Melo Filho,A. A. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Vieira,M. G. A. Almeida Neto,A. F. de Silva,M. G. Carlos da Nóbrega,C. C. Melo Filho,A. A. |
dc.subject.por.fl_str_mv |
Rice husks Heavy metals Biosorption |
topic |
Rice husks Heavy metals Biosorption |
description |
Heavy metal removal by adsorption using rice husks as a bioadsorbent was evaluated as an alternative for wastewater treatment. Batch equilibrium experiments and kinetic sorption studies were performed using monocomponent solutions of Ni(II), Cd(II), Zn(II), Pb(II) and Cu(II) in surface samples of in natura(RH) and calcined rice husks (RHA). RHA showed higher potential for removing lead and copper. Experimental data for adsorption isotherms of lead and copper were adjusted by Langmuir, Freundlich and Dubinin-Radushkevick (D-R) models, being better represented by the Langmuir model. The calcination of RH increased its surface area, improving its adsorption properties. From a morphological analysis obtained by SEM and diffraction patterns (XRD), a longitudinal fibrous and amorphous structure was observed for RH. TGA resultsindicated a total mass loss of around 60% for RH and 24.5% for RHA. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322012000300019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322012000300019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322012000300019 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.29 n.3 2012 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213173846605824 |