Non chemical natural organic matter removal with a contact TiO2 process

Detalhes bibliográficos
Autor(a) principal: Ramos, André Martins
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

Registros relacionados