Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada
Ano de defesa: | 2019 |
---|---|
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 Santa Maria
Centro de Ciências Naturais e Exatas |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Química
|
Departamento: |
Química
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/19178 |
Resumo: | Naphthalene is the PAH with the simplest chemical structure, it has two aromatic rings. Thus, it serves as a standard for studies concerning this class of compounds, which present potential prejudicial to human health and are one of the main contaminants of water. Adsorption is a widely used technique for the removal of PAHs, and in recent years, different adsorbent materials have been developed for this purpose. With this increase, it's necessary to establish standards in adsorption by statistical methods, in order to reduce costs, waste generation and research time. This work used data obtained from a wide literature review of the last four decades of naphthalene adsorption of aqueous solutions with different adsorbents, searching for the greatest possible information of process. From the data obtained, Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) were performed. PCA results it was observed that the surface area of the adsorbents and the initial concentration of naphthalene are the main factors that influence the adsorption capacity of the material, this information has a proven reliability level by the explained value of variance of the technique if of 70.57%. With HCA, it was possible to establish standards of the different classes of adsorbents based on their chemical similarities and the characteristics involved in the technique, presenting four groups of different similarities.Thus, the techniques of multivariate statistics were able to define similar behaviors in the processes studies with different adsorbent materials, so it is possible to use such techniques to facilitate the study of PAHs removal, especially naphthalene. |
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Biblioteca Digital de Teses e Dissertações do UFSM |
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2019-12-18T15:20:39Z2019-12-18T15:20:39Z2019-07-31http://repositorio.ufsm.br/handle/1/19178Naphthalene is the PAH with the simplest chemical structure, it has two aromatic rings. Thus, it serves as a standard for studies concerning this class of compounds, which present potential prejudicial to human health and are one of the main contaminants of water. Adsorption is a widely used technique for the removal of PAHs, and in recent years, different adsorbent materials have been developed for this purpose. With this increase, it's necessary to establish standards in adsorption by statistical methods, in order to reduce costs, waste generation and research time. This work used data obtained from a wide literature review of the last four decades of naphthalene adsorption of aqueous solutions with different adsorbents, searching for the greatest possible information of process. From the data obtained, Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) were performed. PCA results it was observed that the surface area of the adsorbents and the initial concentration of naphthalene are the main factors that influence the adsorption capacity of the material, this information has a proven reliability level by the explained value of variance of the technique if of 70.57%. With HCA, it was possible to establish standards of the different classes of adsorbents based on their chemical similarities and the characteristics involved in the technique, presenting four groups of different similarities.Thus, the techniques of multivariate statistics were able to define similar behaviors in the processes studies with different adsorbent materials, so it is possible to use such techniques to facilitate the study of PAHs removal, especially naphthalene.O naftaleno é o Hidrocarboneto Policíclico Aromático (HPA) com estrutura química mais simples, possui dois anéis aromáticos. Dessa forma, serve como padrão para estudos referentes a esses compostos, que apresentam potencial nocivo à saúde humana e são um dos principais contaminantes de águas. A adsorção é uma técnica amplamente utilizada na remoção de HPAs, e nos últimos anos foram desenvolvidos diferentes materiais adsorventes com esta finalidade. Com esse aumento, é necessário estabelecer padrões na adsorção por métodos estatísticos, a fim de reduzir custos, geração de resíduos e tempo de pesquisas. Este trabalho utilizou dados obtidos de uma ampla revisão da literatura das últimas quatro décadas envolvendo trabalhos de adsorção de naftaleno em soluções aquosas, buscando o maior número de informações possíveis do processo. A partir dos dados obtidos, foram realizadas Análises de Componentes Principais (PCA) e Análise de Cluster Hierárquicos (HCA). A partir dos resultados da PCA foi observado que a área superficial dos adsorventes e a concentração inicial de naftaleno são os principais fatores que influenciam na capacidade de adsorção do material, essa informação possui um nível de confiabilidade comprovada visto que, obteve 70,57% de variância explicada. Com a HCA, foi possível estipular padrões das diferentes classes de adsorventes baseados em suas similaridades químicas e nas características envolvidas na técnica, apresentando quatro grupos de similaridades distintas. Assim, as técnicas de estatística multivariada mostraram-se capazes de definir comportamentos similares nos estudos com diferentes materiais adsorventes, sendo assim, é possível utilizar tais técnicas para facilitar o estudo de remoção de HPAs, especialmente o naftaleno.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências Naturais e ExatasPrograma de Pós-Graduação em QuímicaUFSMBrasilQuímicaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessHidrocarbonetos policíclicos aromáticosNaftalenoAdsorçãoAnálise multivariadaPolycyclic aromatic hydrocarbonsNaphthaleneAdsorptionMultivariate analysisCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICAProcesso de adsorção de naftaleno em soluções aquosas: uma abordagem multivariadaNaphthalene adsorption process in aqueous solutions: a multivariate approachinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisRosa, Marcelo Barcellos dahttp://lattes.cnpq.br/0308293154958870Machado, Ênio Leandrohttp://lattes.cnpq.br/6922571767923420Kunz, Simone Noremberghttp://lattes.cnpq.br/0979416016892842http://lattes.cnpq.br/0907539763536975Frescura, Lucas Mironuk1006000000006008b5ece49-3859-41c1-a27a-94fe03364b5ad10d50a7-0736-4a0f-ab02-2b3c6917c48d83525661-81e2-4c1d-bbde-36daa91d84421499c66e-9598-4b75-aa53-e49c95d1597creponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALDIS_PPGQUIMICA_2019_FRESCURA_LUCAS.pdfDIS_PPGQUIMICA_2019_FRESCURA_LUCAS.pdfDissertação de Mestradoapplication/pdf2338539http://repositorio.ufsm.br/bitstream/1/19178/1/DIS_PPGQUIMICA_2019_FRESCURA_LUCAS.pdf7261a4a29ac0069bbc8f130872580d3cMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada |
dc.title.alternative.eng.fl_str_mv |
Naphthalene adsorption process in aqueous solutions: a multivariate approach |
title |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada |
spellingShingle |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada Frescura, Lucas Mironuk Hidrocarbonetos policíclicos aromáticos Naftaleno Adsorção Análise multivariada Polycyclic aromatic hydrocarbons Naphthalene Adsorption Multivariate analysis CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada |
title_full |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada |
title_fullStr |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada |
title_full_unstemmed |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada |
title_sort |
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada |
author |
Frescura, Lucas Mironuk |
author_facet |
Frescura, Lucas Mironuk |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Rosa, Marcelo Barcellos da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0308293154958870 |
dc.contributor.referee1.fl_str_mv |
Machado, Ênio Leandro |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/6922571767923420 |
dc.contributor.referee2.fl_str_mv |
Kunz, Simone Noremberg |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/0979416016892842 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0907539763536975 |
dc.contributor.author.fl_str_mv |
Frescura, Lucas Mironuk |
contributor_str_mv |
Rosa, Marcelo Barcellos da Machado, Ênio Leandro Kunz, Simone Noremberg |
dc.subject.por.fl_str_mv |
Hidrocarbonetos policíclicos aromáticos Naftaleno Adsorção Análise multivariada |
topic |
Hidrocarbonetos policíclicos aromáticos Naftaleno Adsorção Análise multivariada Polycyclic aromatic hydrocarbons Naphthalene Adsorption Multivariate analysis CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Polycyclic aromatic hydrocarbons Naphthalene Adsorption Multivariate analysis |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
Naphthalene is the PAH with the simplest chemical structure, it has two aromatic rings. Thus, it serves as a standard for studies concerning this class of compounds, which present potential prejudicial to human health and are one of the main contaminants of water. Adsorption is a widely used technique for the removal of PAHs, and in recent years, different adsorbent materials have been developed for this purpose. With this increase, it's necessary to establish standards in adsorption by statistical methods, in order to reduce costs, waste generation and research time. This work used data obtained from a wide literature review of the last four decades of naphthalene adsorption of aqueous solutions with different adsorbents, searching for the greatest possible information of process. From the data obtained, Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) were performed. PCA results it was observed that the surface area of the adsorbents and the initial concentration of naphthalene are the main factors that influence the adsorption capacity of the material, this information has a proven reliability level by the explained value of variance of the technique if of 70.57%. With HCA, it was possible to establish standards of the different classes of adsorbents based on their chemical similarities and the characteristics involved in the technique, presenting four groups of different similarities.Thus, the techniques of multivariate statistics were able to define similar behaviors in the processes studies with different adsorbent materials, so it is possible to use such techniques to facilitate the study of PAHs removal, especially naphthalene. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-12-18T15:20:39Z |
dc.date.available.fl_str_mv |
2019-12-18T15:20:39Z |
dc.date.issued.fl_str_mv |
2019-07-31 |
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://repositorio.ufsm.br/handle/1/19178 |
url |
http://repositorio.ufsm.br/handle/1/19178 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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100600000000 |
dc.relation.confidence.fl_str_mv |
600 |
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Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Química |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.source.none.fl_str_mv |
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