Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000501015 |
Resumo: | AbstractIn water treatment process ozone is applied to disinfection and to remove organic pollutants. Membrane contactor devices are used as a physical barrier to separate two fluids without phase dispersion and it can be used to improve the ozonation efficiency. Polymeric materials are used in membrane contactors and they can react with ozone, suffering degradation and losing its mechanical properties. In this work, commercial polymeric membranes were selected to investigate their interaction with ozone in gaseous phase. It was evaluated changes in polymer structures and in membrane morphology by FTIR, DSC, TGA and SEM. It was observed preferential ozone attack to double carbon-carbon bonds in the main polymer chain for polyimide and polysulphone membranes. Polypropylene has single carbon-carbon bonds and its reaction with ozone was less intensive. For polydimethylsiloxane membranes the ozone attack seems to occur in the carbon-silicon bond, leading to loss of mechanical and thermal properties. |
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Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonationozonemembrane contactorpolymer degradationwater treatmentAbstractIn water treatment process ozone is applied to disinfection and to remove organic pollutants. Membrane contactor devices are used as a physical barrier to separate two fluids without phase dispersion and it can be used to improve the ozonation efficiency. Polymeric materials are used in membrane contactors and they can react with ozone, suffering degradation and losing its mechanical properties. In this work, commercial polymeric membranes were selected to investigate their interaction with ozone in gaseous phase. It was evaluated changes in polymer structures and in membrane morphology by FTIR, DSC, TGA and SEM. It was observed preferential ozone attack to double carbon-carbon bonds in the main polymer chain for polyimide and polysulphone membranes. Polypropylene has single carbon-carbon bonds and its reaction with ozone was less intensive. For polydimethylsiloxane membranes the ozone attack seems to occur in the carbon-silicon bond, leading to loss of mechanical and thermal properties.ABM, ABC, ABPol2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000501015Materials Research v.18 n.5 2015reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1516-1439.016715info:eu-repo/semantics/openAccessSantos,Felipe Rodrigues Alves dosBorges,Cristiano PiacsekFonseca,Fabiana Valéria daeng2015-10-19T00:00:00Zoai:scielo:S1516-14392015000501015Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2015-10-19T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation |
title |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation |
spellingShingle |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation Santos,Felipe Rodrigues Alves dos ozone membrane contactor polymer degradation water treatment |
title_short |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation |
title_full |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation |
title_fullStr |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation |
title_full_unstemmed |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation |
title_sort |
Polymeric Materials for Membrane Contactor Devices Applied to Water Treatment by Ozonation |
author |
Santos,Felipe Rodrigues Alves dos |
author_facet |
Santos,Felipe Rodrigues Alves dos Borges,Cristiano Piacsek Fonseca,Fabiana Valéria da |
author_role |
author |
author2 |
Borges,Cristiano Piacsek Fonseca,Fabiana Valéria da |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Santos,Felipe Rodrigues Alves dos Borges,Cristiano Piacsek Fonseca,Fabiana Valéria da |
dc.subject.por.fl_str_mv |
ozone membrane contactor polymer degradation water treatment |
topic |
ozone membrane contactor polymer degradation water treatment |
description |
AbstractIn water treatment process ozone is applied to disinfection and to remove organic pollutants. Membrane contactor devices are used as a physical barrier to separate two fluids without phase dispersion and it can be used to improve the ozonation efficiency. Polymeric materials are used in membrane contactors and they can react with ozone, suffering degradation and losing its mechanical properties. In this work, commercial polymeric membranes were selected to investigate their interaction with ozone in gaseous phase. It was evaluated changes in polymer structures and in membrane morphology by FTIR, DSC, TGA and SEM. It was observed preferential ozone attack to double carbon-carbon bonds in the main polymer chain for polyimide and polysulphone membranes. Polypropylene has single carbon-carbon bonds and its reaction with ozone was less intensive. For polydimethylsiloxane membranes the ozone attack seems to occur in the carbon-silicon bond, leading to loss of mechanical and thermal properties. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-01 |
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=S1516-14392015000501015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000501015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1516-1439.016715 |
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 |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.18 n.5 2015 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212665828311040 |