Evaluation of the electrodialysis process for the treatment of metal finishing wastewater
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000400021 |
Resumo: | Metal finishing wastewater containing ions of Zn, Ni, Cu, Fe and Al, as well as of Na and CN- in alkaline pH was treated by electrodialysis. The treatment was conducted in a laboratory cell and in a pilot plant unity. The experiments were carried out using Nafion and Selemion membranes. Results showed most of the metallic ions to have an anionic nature, due to the formation of coordination complexes. Each metallic ion showed a different rate of extraction from the treated solution, depending on the galvanostatic or potentiostatic operation mode. Zn, Ni and Cu have shown higher extraction under galvanostatic control. For Al, higher extraction was observed when the experiment was conducted in a potentiostatic mode. Fe ions exhibited an unexpected behavior, not being removed in the same way as the other ions. The best extraction results were obtained within 2-3 h of treatment. |
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Evaluation of the electrodialysis process for the treatment of metal finishing wastewaterelectrodialysiswastewater treatmentmetal finishing wastewatermembranesMetal finishing wastewater containing ions of Zn, Ni, Cu, Fe and Al, as well as of Na and CN- in alkaline pH was treated by electrodialysis. The treatment was conducted in a laboratory cell and in a pilot plant unity. The experiments were carried out using Nafion and Selemion membranes. Results showed most of the metallic ions to have an anionic nature, due to the formation of coordination complexes. Each metallic ion showed a different rate of extraction from the treated solution, depending on the galvanostatic or potentiostatic operation mode. Zn, Ni and Cu have shown higher extraction under galvanostatic control. For Al, higher extraction was observed when the experiment was conducted in a potentiostatic mode. Fe ions exhibited an unexpected behavior, not being removed in the same way as the other ions. The best extraction results were obtained within 2-3 h of treatment.Sociedade Brasileira de Química2002-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000400021Journal of the Brazilian Chemical Society v.13 n.4 2002reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532002000400021info:eu-repo/semantics/openAccessDalla Costa,Roni F.Klein,Cláudia W.Bernardes,Andrea M.Zoppas Ferreira,Janeeng2002-09-06T00:00:00Zoai:scielo:S0103-50532002000400021Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2002-09-06T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater |
title |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater |
spellingShingle |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater Dalla Costa,Roni F. electrodialysis wastewater treatment metal finishing wastewater membranes |
title_short |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater |
title_full |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater |
title_fullStr |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater |
title_full_unstemmed |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater |
title_sort |
Evaluation of the electrodialysis process for the treatment of metal finishing wastewater |
author |
Dalla Costa,Roni F. |
author_facet |
Dalla Costa,Roni F. Klein,Cláudia W. Bernardes,Andrea M. Zoppas Ferreira,Jane |
author_role |
author |
author2 |
Klein,Cláudia W. Bernardes,Andrea M. Zoppas Ferreira,Jane |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Dalla Costa,Roni F. Klein,Cláudia W. Bernardes,Andrea M. Zoppas Ferreira,Jane |
dc.subject.por.fl_str_mv |
electrodialysis wastewater treatment metal finishing wastewater membranes |
topic |
electrodialysis wastewater treatment metal finishing wastewater membranes |
description |
Metal finishing wastewater containing ions of Zn, Ni, Cu, Fe and Al, as well as of Na and CN- in alkaline pH was treated by electrodialysis. The treatment was conducted in a laboratory cell and in a pilot plant unity. The experiments were carried out using Nafion and Selemion membranes. Results showed most of the metallic ions to have an anionic nature, due to the formation of coordination complexes. Each metallic ion showed a different rate of extraction from the treated solution, depending on the galvanostatic or potentiostatic operation mode. Zn, Ni and Cu have shown higher extraction under galvanostatic control. For Al, higher extraction was observed when the experiment was conducted in a potentiostatic mode. Fe ions exhibited an unexpected behavior, not being removed in the same way as the other ions. The best extraction results were obtained within 2-3 h of treatment. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-08-01 |
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=S0103-50532002000400021 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000400021 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532002000400021 |
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 |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.13 n.4 2002 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318164933083136 |