Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042011000500005 |
Resumo: | The influence of the hydrodynamics of the system on the extent of the electrochemical degradation of phenol, using a boron doped diamond (BDD) anode was investigated. Two different electrochemical cells were used: a batch stirred cell (A), with a volume of 200 mL and a BDD anode of 17.5 cm², and a batch with recirculation cell (B), with a BDD anode of 70 cm² and connected to a tank of 30 L. Assays were performed at different stirring speeds and applied current density of 300 A m-2 , for cell A, and various flow rates, with an imposed current density of 100 A m-2, for cell B. Chemical oxygen demand (COD) and total organic carbon (TOC) tests were performed to the samples collected throughout the assays, as well as UV-Vis spectrophotometric measurements. For cell A, after 2 h assay, COD removals between 84 and 94% and TOC removals ranging from 54 and 86 % were attained. For the assays run with cell B, during 10 h, COD and TOC removals varied from 27 to 51% and from 23 to 46%, respectively. The influence of the turbulence near the electrode's surface in the combustion efficiency was also analysed. |
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Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anodephenolboron doped diamond electrodeelectrochemical oxidationhydrodynamic conditionsThe influence of the hydrodynamics of the system on the extent of the electrochemical degradation of phenol, using a boron doped diamond (BDD) anode was investigated. Two different electrochemical cells were used: a batch stirred cell (A), with a volume of 200 mL and a BDD anode of 17.5 cm², and a batch with recirculation cell (B), with a BDD anode of 70 cm² and connected to a tank of 30 L. Assays were performed at different stirring speeds and applied current density of 300 A m-2 , for cell A, and various flow rates, with an imposed current density of 100 A m-2, for cell B. Chemical oxygen demand (COD) and total organic carbon (TOC) tests were performed to the samples collected throughout the assays, as well as UV-Vis spectrophotometric measurements. For cell A, after 2 h assay, COD removals between 84 and 94% and TOC removals ranging from 54 and 86 % were attained. For the assays run with cell B, during 10 h, COD and TOC removals varied from 27 to 51% and from 23 to 46%, respectively. The influence of the turbulence near the electrode's surface in the combustion efficiency was also analysed.Sociedade Portuguesa de Electroquímica2011-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042011000500005Portugaliae Electrochimica Acta v.29 n.5 2011reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042011000500005Sobreira,S.Pacheco,M.J.Ciríaco,L.Lopes,A.info:eu-repo/semantics/openAccess2023-07-27T12:23:26ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode |
title |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode |
spellingShingle |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode Sobreira,S. phenol boron doped diamond electrode electrochemical oxidation hydrodynamic conditions |
title_short |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode |
title_full |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode |
title_fullStr |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode |
title_full_unstemmed |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode |
title_sort |
Effect of the Hydrodynamic Conditions on the Electrochemical Degradation of Phenol on a BDD Anode |
author |
Sobreira,S. |
author_facet |
Sobreira,S. Pacheco,M.J. Ciríaco,L. Lopes,A. |
author_role |
author |
author2 |
Pacheco,M.J. Ciríaco,L. Lopes,A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Sobreira,S. Pacheco,M.J. Ciríaco,L. Lopes,A. |
dc.subject.por.fl_str_mv |
phenol boron doped diamond electrode electrochemical oxidation hydrodynamic conditions |
topic |
phenol boron doped diamond electrode electrochemical oxidation hydrodynamic conditions |
description |
The influence of the hydrodynamics of the system on the extent of the electrochemical degradation of phenol, using a boron doped diamond (BDD) anode was investigated. Two different electrochemical cells were used: a batch stirred cell (A), with a volume of 200 mL and a BDD anode of 17.5 cm², and a batch with recirculation cell (B), with a BDD anode of 70 cm² and connected to a tank of 30 L. Assays were performed at different stirring speeds and applied current density of 300 A m-2 , for cell A, and various flow rates, with an imposed current density of 100 A m-2, for cell B. Chemical oxygen demand (COD) and total organic carbon (TOC) tests were performed to the samples collected throughout the assays, as well as UV-Vis spectrophotometric measurements. For cell A, after 2 h assay, COD removals between 84 and 94% and TOC removals ranging from 54 and 86 % were attained. For the assays run with cell B, during 10 h, COD and TOC removals varied from 27 to 51% and from 23 to 46%, respectively. The influence of the turbulence near the electrode's surface in the combustion efficiency was also analysed. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-09-01 |
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042011000500005 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042011000500005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042011000500005 |
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 Portuguesa de Electroquímica |
publisher.none.fl_str_mv |
Sociedade Portuguesa de Electroquímica |
dc.source.none.fl_str_mv |
Portugaliae Electrochimica Acta v.29 n.5 2011 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
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_version_ |
1777304407197614080 |