Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system

Detalhes bibliográficos
Autor(a) principal: Vieira,M. G. A.
Data de Publicação: 2014
Outros Autores: Almeida Neto,A. F. de, Silva,M. G. C. da, Carneiro,C. N., Melo Filho,A. A.
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=S0104-66322014000200022
Resumo: This study evaluated the kinetic adsorption of Pb and Cu ions using rice husk ash as adsorbent in a fixed bed. The maximum adsorption capacities obtained for lead and copper ions in the fixed bed were 0.0561 and 0.0682 mmol/g (at 20 ºC), respectively. The thermodynamic studies indicated that the lead adsorption process was exothermic and spontaneous, while the copper adsorption process was endothermic and spontaneous. Characterization results indicated the presence of several functional groups, amorphous silica and a fibrous and longitudinal structure of rice husks. Rice husk ash (RHA) from northern Brazil can be used as a bioadsorbent for the individual removal of Pb(II) and Cu(II) ions from metal-containing effluents.
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spelling Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic systemAdsorptionHeavy metal removalRice husk ashThis study evaluated the kinetic adsorption of Pb and Cu ions using rice husk ash as adsorbent in a fixed bed. The maximum adsorption capacities obtained for lead and copper ions in the fixed bed were 0.0561 and 0.0682 mmol/g (at 20 ºC), respectively. The thermodynamic studies indicated that the lead adsorption process was exothermic and spontaneous, while the copper adsorption process was endothermic and spontaneous. Characterization results indicated the presence of several functional groups, amorphous silica and a fibrous and longitudinal structure of rice husks. Rice husk ash (RHA) from northern Brazil can be used as a bioadsorbent for the individual removal of Pb(II) and Cu(II) ions from metal-containing effluents.Brazilian Society of Chemical Engineering2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322014000200022Brazilian Journal of Chemical Engineering v.31 n.2 2014reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/0104-6632.20140312s00002103info:eu-repo/semantics/openAccessVieira,M. G. A.Almeida Neto,A. F. deSilva,M. G. C. daCarneiro,C. N.Melo Filho,A. A.eng2014-07-07T00:00:00Zoai:scielo:S0104-66322014000200022Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2014-07-07T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
title Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
spellingShingle Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
Vieira,M. G. A.
Adsorption
Heavy metal removal
Rice husk ash
title_short Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
title_full Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
title_fullStr Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
title_full_unstemmed Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
title_sort Adsorption of lead and copper ions from aqueous effluents on rice husk ash in a dynamic system
author Vieira,M. G. A.
author_facet Vieira,M. G. A.
Almeida Neto,A. F. de
Silva,M. G. C. da
Carneiro,C. N.
Melo Filho,A. A.
author_role author
author2 Almeida Neto,A. F. de
Silva,M. G. C. da
Carneiro,C. N.
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. C. da
Carneiro,C. N.
Melo Filho,A. A.
dc.subject.por.fl_str_mv Adsorption
Heavy metal removal
Rice husk ash
topic Adsorption
Heavy metal removal
Rice husk ash
description This study evaluated the kinetic adsorption of Pb and Cu ions using rice husk ash as adsorbent in a fixed bed. The maximum adsorption capacities obtained for lead and copper ions in the fixed bed were 0.0561 and 0.0682 mmol/g (at 20 ºC), respectively. The thermodynamic studies indicated that the lead adsorption process was exothermic and spontaneous, while the copper adsorption process was endothermic and spontaneous. Characterization results indicated the presence of several functional groups, amorphous silica and a fibrous and longitudinal structure of rice husks. Rice husk ash (RHA) from northern Brazil can be used as a bioadsorbent for the individual removal of Pb(II) and Cu(II) ions from metal-containing effluents.
publishDate 2014
dc.date.none.fl_str_mv 2014-06-01
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=S0104-66322014000200022
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322014000200022
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0104-6632.20140312s00002103
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.31 n.2 2014
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_ 1754213174312173568

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