Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV
Ano de defesa: | 2016 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de São Carlos
Câmpus São Carlos |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Química - PPGQ
|
Departamento: |
Não Informado pela instituição
|
País: |
Não Informado pela instituição
|
Palavras-chave em Português: | |
Área do conhecimento CNPq: | |
Link de acesso: | https://repositorio.ufscar.br/handle/ufscar/9030 |
Resumo: | A coupled electrochemical-photochemical system (EQ-FQ) using a dimensionally stable anode (ADE) and UV light was used for the oxidation and mineralization of picloram (PCL) herbicide, which is a potential contaminant of surface water and groundwater. The electrochemical process was conducted using a filter-press flow cell and the photochemical one through direct irradiation of the solution in the reservoir using a Hg lamp (UVA and UVC radiation). For the combined system (EQ-FQ), both processes were simultaneously used. In the first part of this work, the investigated variables were: i) type/nominal power of the Hg lamp (UVA 9 W and UVC 5 and 9 W) and ii) initial [Fe2+] (0.0; 0.5, 1.0 and 2.0 mmol L-1). In the second part, which was carried out using a 5 W UVC light, the investigated variables were: i) pH (3, 7, 11 and without control) and ii) [NaCl] (0, 1, 2 and 4 g L-1). Other parameters were kept constant such as, flow rate (420 L h-1), temperature (25 °C), current density (20 mA cm-2), [PCL] (100 mg L-1) and [Na2SO4] (0.1 mol L-1). In the optimized conditions of the second part (5 W UVC lamp, without pH control, and using NaCl 1,0 g L_1), a electrochemical treatment was carried out comparatively and using a boron-doped diamond anode (EQ-DDB). High performance liquid chromatography coupled to mass spectrometry and total organic carbon measurements were used to monitor the [PCL] and of its intermediates, as well as the degree of mineralization (CO2 conversion), respectively. The EQ-FQ system using a 9 W UVA light exhibited a synergistic effect during PCL mineralization in comparison to its oxidation. High CO2 conversion rates were attained when using an initial concentration of Fe2+ equal to 1,0 mmol L-1, due to the formation of HO* and Cl* radicals. This might be due to HOCl homolysis mediated by Fe2+ ions (Fenton like reaction). Nevertheless, experiments using a UVC light were more promising for the oxidation and mineralization of PCL. In the second part, acidic to neutral solutions, independently of the NaCl amount, led to high PCL oxidation and mineralization rates. That behavior is due to the chemical oxidation mediated by HO* and Cl* radicals, which were photogenerated by the HOCl homolysis. The EQ-FQ system showed comparable efficiencies, in some conditions superior, concerning the oxidation and mineralization of PCL, degree of conversion to CO2, and mineralization current efficiency in comparison to the EQ-DDB process. Few reaction byproducts were detected and only one of them resulting from hydroxylation reactions. This result indicates the attack of HO* radicals originating from the EQ-FQ process. Concerning short chain carboxylic acids, the EQ-FQ process produced dichloroacetic acid (and others), which was almost completely consumed during treatment; however, the EQ-DDB process produced small amounts of chloroacetic acid, which was not completely eliminated during treatment. Finally, the treated solution using the EQ-FQ process exhibited no toxicity towards Escherichia Coli bacteria. |
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Coledam, Douglas Augusto ConstantinoAquino, José Mario dehttp://lattes.cnpq.br/8847710280926769http://lattes.cnpq.br/25016898056268822017-08-21T17:35:37Z2017-08-21T17:35:37Z2016-10-21COLEDAM, Douglas Augusto Constantino. Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV. 2016. Dissertação (Mestrado em Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/9030.https://repositorio.ufscar.br/handle/ufscar/9030A coupled electrochemical-photochemical system (EQ-FQ) using a dimensionally stable anode (ADE) and UV light was used for the oxidation and mineralization of picloram (PCL) herbicide, which is a potential contaminant of surface water and groundwater. The electrochemical process was conducted using a filter-press flow cell and the photochemical one through direct irradiation of the solution in the reservoir using a Hg lamp (UVA and UVC radiation). For the combined system (EQ-FQ), both processes were simultaneously used. In the first part of this work, the investigated variables were: i) type/nominal power of the Hg lamp (UVA 9 W and UVC 5 and 9 W) and ii) initial [Fe2+] (0.0; 0.5, 1.0 and 2.0 mmol L-1). In the second part, which was carried out using a 5 W UVC light, the investigated variables were: i) pH (3, 7, 11 and without control) and ii) [NaCl] (0, 1, 2 and 4 g L-1). Other parameters were kept constant such as, flow rate (420 L h-1), temperature (25 °C), current density (20 mA cm-2), [PCL] (100 mg L-1) and [Na2SO4] (0.1 mol L-1). In the optimized conditions of the second part (5 W UVC lamp, without pH control, and using NaCl 1,0 g L_1), a electrochemical treatment was carried out comparatively and using a boron-doped diamond anode (EQ-DDB). High performance liquid chromatography coupled to mass spectrometry and total organic carbon measurements were used to monitor the [PCL] and of its intermediates, as well as the degree of mineralization (CO2 conversion), respectively. The EQ-FQ system using a 9 W UVA light exhibited a synergistic effect during PCL mineralization in comparison to its oxidation. High CO2 conversion rates were attained when using an initial concentration of Fe2+ equal to 1,0 mmol L-1, due to the formation of HO* and Cl* radicals. This might be due to HOCl homolysis mediated by Fe2+ ions (Fenton like reaction). Nevertheless, experiments using a UVC light were more promising for the oxidation and mineralization of PCL. In the second part, acidic to neutral solutions, independently of the NaCl amount, led to high PCL oxidation and mineralization rates. That behavior is due to the chemical oxidation mediated by HO* and Cl* radicals, which were photogenerated by the HOCl homolysis. The EQ-FQ system showed comparable efficiencies, in some conditions superior, concerning the oxidation and mineralization of PCL, degree of conversion to CO2, and mineralization current efficiency in comparison to the EQ-DDB process. Few reaction byproducts were detected and only one of them resulting from hydroxylation reactions. This result indicates the attack of HO* radicals originating from the EQ-FQ process. Concerning short chain carboxylic acids, the EQ-FQ process produced dichloroacetic acid (and others), which was almost completely consumed during treatment; however, the EQ-DDB process produced small amounts of chloroacetic acid, which was not completely eliminated during treatment. Finally, the treated solution using the EQ-FQ process exhibited no toxicity towards Escherichia Coli bacteria.Um sistema eletroquímico-fotoquímico (EQ-FQ) em série e utilizando um anodo dimensionalmente estável (ADE) e luz UV foi usado para a oxidação e mineralização do herbicida Picloram (PCL), potencial contaminante de águas superficiais e subterrâneas. O processo eletroquímico foi realizado utilizando um reator do tipo filtro-prensa e o fotoquímico por meio da irradiação direta da solução no reservatório utilizando uma lâmpada de vapor de Hg (radiação UVA ou UVC). Para o sistema acoplado (EQ-FQ), os dois processos eram utilizados simultaneamente. Na 1a etapa do trabalho, as variáveis investigadas foram: i) tipo/potência nominal da lâmpada de vapor de Hg (UVA de 9 W e UVC de 5 e 9 W) e ii) [Fe2+] inicial (0,0; 0,5; 1,0 e 2,0 mmol L-1). Na 2a etapa, que foi realizada com luz UVC de 5 W, investigou-se as variáveis: i) pH (3, 7, 11 e sem controle) e ii) [NaCl] (0, 1, 2 e 4 g L-1). Os parâmetros mantidos constantes foram: vazão (420 L h-1), temperatura (25 °C), densidade de corrente (20 mA cm-2), [PCL] (100 mg L-1) e [Na2SO4] (0,1 mol L-1). Nas melhores condições obtidas na segunda etapa (lâmpada de UVC 5 W, 1,0 g L-1 de NaCl, sem controle de pH), realizou-se, comparativamente, o tratamento eletroquímico com um anodo de diamante dopado com boro (EQ-DDB). Utilizou-se a cromatografia líquida de alta eficiência acoplada a espectrometria de massas e a medição do teor de carbono orgânico total para o acompanhamento da [PCL] e de seus intermediários, bem como o grau de mineralização (conversão a CO2), respectivamente. O sistema EQ-FQ utilizando a lâmpada UVA de 9 W mostrou um efeito sinérgico na mineralização do PCL, frente à oxidação, além de alcançar significativas taxas de conversão a CO2, quando se utilizou uma concentração inicial de Fe2+ igual a 1,0 mmol L-1, devido à formação de radicais HO* e Cl*. Acredita-se que isso possa ser devido à homólise da espécie HOCl mediada por íons Fe2+ (reação tipo Fenton). Apesar disso, os ensaios com luz UVC foram mais promissores para a oxidação e mineralização do PCL. Na segunda etapa, soluções ácidas e neutras, em qualquer concentração de NaCl, apresentaram elevadas taxas de oxidação e de mineralização do PCL. Este comportamento é devido à oxidação química no interior da solução e mediada pelos radicais HO* e Cl*, fotogerados pela homólise do HOCl. Observou-se que o processo EQ-FQ apresentou eficiências comparáveis, e em alguns casos superiores, em termos de oxidação e mineralização do PCL, grau de conversão a CO2 e eficiência de corrente de mineralização, em comparação com o EQ-DDB. Poucos intermediários reacionais foram detectados e apenas um advindo de reações de hidroxilação, o que comprova o ataque pelo radical HO* advindo do processo EQ-FQ. Com relação aos ácidos carboxílicos de cadeia curta, o processo EQ-FQ gerou como subproduto o ácido dicloroacético (além de outros), que foi praticamente consumido ao longo do tratamento; contudo, o processo EQ-DDB, gerou pequenas quantidades de ácido cloroacético, que não foi totalmente consumido ao longo do tratamento. Finalmente, a solução tratada pelo processo EQ-FQ não apresentou toxicidade frente a bactéria Escherichia ColiConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)porUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Química - PPGQUFSCarCompostos orgânicos sintéticosAnodo dimensionalmente estávelHerbicida Picloram (PCL)RadiaçãoCromatografia líquida de alta eficiênciaEspectrometria de massasCIENCIAS EXATAS E DA TERRA::QUIMICADegradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UVCoupled electrochemical and photochemical degradation of picloram herbicide using a dimensionally stable anode and UV lightinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisOnlineinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALDissDACC.pdfDissDACC.pdfapplication/pdf3823889https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/1/DissDACC.pdf37de25a48d91d1dd311b2011d7f327acMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81957https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/2/license.txtae0398b6f8b235e40ad82cba6c50031dMD52TEXTDissDACC.pdf.txtDissDACC.pdf.txtExtracted texttext/plain257650https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/3/DissDACC.pdf.txtb6ba73405f5b01896c43a0d1ee57f7c2MD53THUMBNAILDissDACC.pdf.jpgDissDACC.pdf.jpgIM Thumbnailimage/jpeg10227https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/4/DissDACC.pdf.jpg4a62b64ac6a5a897914bedb28dc3e54cMD54ufscar/90302019-09-11 03:58:49.922oai:repositorio.ufscar.br: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Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-05-25T12:54:33.505395Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV |
dc.title.alternative.eng.fl_str_mv |
Coupled electrochemical and photochemical degradation of picloram herbicide using a dimensionally stable anode and UV light |
title |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV |
spellingShingle |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV Coledam, Douglas Augusto Constantino Compostos orgânicos sintéticos Anodo dimensionalmente estável Herbicida Picloram (PCL) Radiação Cromatografia líquida de alta eficiência Espectrometria de massas CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV |
title_full |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV |
title_fullStr |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV |
title_full_unstemmed |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV |
title_sort |
Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV |
author |
Coledam, Douglas Augusto Constantino |
author_facet |
Coledam, Douglas Augusto Constantino |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/2501689805626882 |
dc.contributor.author.fl_str_mv |
Coledam, Douglas Augusto Constantino |
dc.contributor.advisor1.fl_str_mv |
Aquino, José Mario de |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8847710280926769 |
contributor_str_mv |
Aquino, José Mario de |
dc.subject.por.fl_str_mv |
Compostos orgânicos sintéticos Anodo dimensionalmente estável Herbicida Picloram (PCL) Radiação Cromatografia líquida de alta eficiência Espectrometria de massas |
topic |
Compostos orgânicos sintéticos Anodo dimensionalmente estável Herbicida Picloram (PCL) Radiação Cromatografia líquida de alta eficiência Espectrometria de massas CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
A coupled electrochemical-photochemical system (EQ-FQ) using a dimensionally stable anode (ADE) and UV light was used for the oxidation and mineralization of picloram (PCL) herbicide, which is a potential contaminant of surface water and groundwater. The electrochemical process was conducted using a filter-press flow cell and the photochemical one through direct irradiation of the solution in the reservoir using a Hg lamp (UVA and UVC radiation). For the combined system (EQ-FQ), both processes were simultaneously used. In the first part of this work, the investigated variables were: i) type/nominal power of the Hg lamp (UVA 9 W and UVC 5 and 9 W) and ii) initial [Fe2+] (0.0; 0.5, 1.0 and 2.0 mmol L-1). In the second part, which was carried out using a 5 W UVC light, the investigated variables were: i) pH (3, 7, 11 and without control) and ii) [NaCl] (0, 1, 2 and 4 g L-1). Other parameters were kept constant such as, flow rate (420 L h-1), temperature (25 °C), current density (20 mA cm-2), [PCL] (100 mg L-1) and [Na2SO4] (0.1 mol L-1). In the optimized conditions of the second part (5 W UVC lamp, without pH control, and using NaCl 1,0 g L_1), a electrochemical treatment was carried out comparatively and using a boron-doped diamond anode (EQ-DDB). High performance liquid chromatography coupled to mass spectrometry and total organic carbon measurements were used to monitor the [PCL] and of its intermediates, as well as the degree of mineralization (CO2 conversion), respectively. The EQ-FQ system using a 9 W UVA light exhibited a synergistic effect during PCL mineralization in comparison to its oxidation. High CO2 conversion rates were attained when using an initial concentration of Fe2+ equal to 1,0 mmol L-1, due to the formation of HO* and Cl* radicals. This might be due to HOCl homolysis mediated by Fe2+ ions (Fenton like reaction). Nevertheless, experiments using a UVC light were more promising for the oxidation and mineralization of PCL. In the second part, acidic to neutral solutions, independently of the NaCl amount, led to high PCL oxidation and mineralization rates. That behavior is due to the chemical oxidation mediated by HO* and Cl* radicals, which were photogenerated by the HOCl homolysis. The EQ-FQ system showed comparable efficiencies, in some conditions superior, concerning the oxidation and mineralization of PCL, degree of conversion to CO2, and mineralization current efficiency in comparison to the EQ-DDB process. Few reaction byproducts were detected and only one of them resulting from hydroxylation reactions. This result indicates the attack of HO* radicals originating from the EQ-FQ process. Concerning short chain carboxylic acids, the EQ-FQ process produced dichloroacetic acid (and others), which was almost completely consumed during treatment; however, the EQ-DDB process produced small amounts of chloroacetic acid, which was not completely eliminated during treatment. Finally, the treated solution using the EQ-FQ process exhibited no toxicity towards Escherichia Coli bacteria. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-10-21 |
dc.date.accessioned.fl_str_mv |
2017-08-21T17:35:37Z |
dc.date.available.fl_str_mv |
2017-08-21T17:35:37Z |
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.citation.fl_str_mv |
COLEDAM, Douglas Augusto Constantino. Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV. 2016. Dissertação (Mestrado em Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/9030. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/9030 |
identifier_str_mv |
COLEDAM, Douglas Augusto Constantino. Degradação eletroquímica e fotoquímica em série do herbicida picloram utilizando um anodo dimensionalmente estável e luz UV. 2016. Dissertação (Mestrado em Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/9030. |
url |
https://repositorio.ufscar.br/handle/ufscar/9030 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química - PPGQ |
dc.publisher.initials.fl_str_mv |
UFSCar |
publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFSCAR instname:Universidade Federal de São Carlos (UFSCAR) instacron:UFSCAR |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
UFSCAR |
institution |
UFSCAR |
reponame_str |
Repositório Institucional da UFSCAR |
collection |
Repositório Institucional da UFSCAR |
bitstream.url.fl_str_mv |
https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/1/DissDACC.pdf https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/2/license.txt https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/3/DissDACC.pdf.txt https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/9030/4/DissDACC.pdf.jpg |
bitstream.checksum.fl_str_mv |
37de25a48d91d1dd311b2011d7f327ac ae0398b6f8b235e40ad82cba6c50031d b6ba73405f5b01896c43a0d1ee57f7c2 4a62b64ac6a5a897914bedb28dc3e54c |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
|
_version_ |
1767351123832733696 |