Non chemical natural organic matter removal with a contact TiO2 process
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/8358 |
Resumo: | Dissertação de Mestrado, Tecnologia dos Alimentos, Instituto Superior de Engenharia, Universidade do Algarve, 2014 |
id |
RCAP_fa40e0a671a26ec2832ba88ba9096bc3 |
---|---|
oai_identifier_str |
oai:sapientia.ualg.pt:10400.1/8358 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Non chemical natural organic matter removal with a contact TiO2 processAdvance oxidation processTitanium dioxideFluoropolymersPTFEPVDFDomínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e TecnologiasDissertação de Mestrado, Tecnologia dos Alimentos, Instituto Superior de Engenharia, Universidade do Algarve, 2014The current work looked for a new media to remove natural organic matter by adsorption on TiO2 nanoparticles bound to fluoropolymers beads through photocatalysis. The work investigated the best methods of production as well the effectiveness of the media thus providing insight into its potential for further adsorption technology development. The results obtained lead to the conclusion that is possible to immobilize TiO2 on a PVDF surface by UV-V, resulting in a photocatalytic surface deposition functionalization. The extended of the PSFD reaction can be controlled by adjusting the pH, with acidic conditions increasing the extension of surface coverage. The polymer with significant results was PVDF, based on SEM figures, MB photodegradation (97.58 %), Kapp (0.054 min-1) and t1/2 (12.85 min) the optimum conditions to increase surface coverage of PVDF is a solution of 1,5 g/L of TiO2 pH 3 under 2 h on UV collimated beam. The photocatalytic activity of PVDFf-TiO2 following Jar tests suggests a very strong electrostatic bond between the TiO2 and the polymer surface. The adsorption of HA onto PVDFf-TiO2 was found to be well described by both the Langmuir and Freundlich models. The maximum adsorption capacity (qmax) was 0.0149 mg/g and the parameters n and KL show a favorable adsorption. Fixed-bed adsorption column studies was developed to remove HA from water, using a fixed bed height of 17 cm, a fixed feed concentration of 5mg/L but different flow rates. Results show that for lower flows there is a higher removal as compare with a higher flow. The best result obtained was 0.42% of HA removal with a feed flow of 1.30 mL/min.Jefferson, BruceJarvis, PeterFigueira, Ana C.SapientiaRamos, André Martins2016-05-30T10:33:50Z201420142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.1/8358TID:202229211enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:19:36Zoai:sapientia.ualg.pt:10400.1/8358Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:00:32.705342Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Non chemical natural organic matter removal with a contact TiO2 process |
title |
Non chemical natural organic matter removal with a contact TiO2 process |
spellingShingle |
Non chemical natural organic matter removal with a contact TiO2 process Ramos, André Martins Advance oxidation process Titanium dioxide Fluoropolymers PTFE PVDF Domínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e Tecnologias |
title_short |
Non chemical natural organic matter removal with a contact TiO2 process |
title_full |
Non chemical natural organic matter removal with a contact TiO2 process |
title_fullStr |
Non chemical natural organic matter removal with a contact TiO2 process |
title_full_unstemmed |
Non chemical natural organic matter removal with a contact TiO2 process |
title_sort |
Non chemical natural organic matter removal with a contact TiO2 process |
author |
Ramos, André Martins |
author_facet |
Ramos, André Martins |
author_role |
author |
dc.contributor.none.fl_str_mv |
Jefferson, Bruce Jarvis, Peter Figueira, Ana C. Sapientia |
dc.contributor.author.fl_str_mv |
Ramos, André Martins |
dc.subject.por.fl_str_mv |
Advance oxidation process Titanium dioxide Fluoropolymers PTFE PVDF Domínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e Tecnologias |
topic |
Advance oxidation process Titanium dioxide Fluoropolymers PTFE PVDF Domínio/Área Científica::Engenharia e Tecnologia::Outras Engenharias e Tecnologias |
description |
Dissertação de Mestrado, Tecnologia dos Alimentos, Instituto Superior de Engenharia, Universidade do Algarve, 2014 |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2014 2014-01-01T00:00:00Z 2016-05-30T10:33:50Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/8358 TID:202229211 |
url |
http://hdl.handle.net/10400.1/8358 |
identifier_str_mv |
TID:202229211 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
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 |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133230024097792 |