Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UERJ |
Texto Completo: | http://www.bdtd.uerj.br/handle/1/15765 |
Resumo: | The uncontrolled discharge of wastewater into the environment over the last years has accelerated the process of contamination and degradation of water bodies in the world. These wastes contain high amounts of contaminants and concentration of organic matter which leads to the death of several species due to lack of oxygen and, in extreme cases, acceleration of eutrophication processes. In the specific case of oily wastewater, the use of techniques such as chemical coagulation, dissolved air injection, membranes, biochemical and electrochemical processes are described. However some of these processes have limitations which range from the concentration of the contaminant in the effluent, limitations in the operating conditions and even cost constraints. With this in mind, this paper has studied a hybrid system, batch process, in the treatment of oily waters simulated in the laboratory by adding a specific lubricating oil in an aqueous solution with emulsifiers and supporting electrolyte. The treatment system was consisted of two stages, which in the first was evaluated the use of the technique of electrocoagulation, which was responsible by the breaking stability of oil/water emulsions and a second stage which evaluated the use of membrane separation processes in order to remove the metal added to the effluent in the previous stage. The electrofloculation system was evaluated in relation to the use of iron and aluminum electrodes with electrical currents of 1A, 2A and 3A, in the continuous and alternate modes. The results showed a higher apparent mass consumption of electrodes when using direct current, 4,0337 g ± 0,0132 for aluminum and 3,8260 g ± 0,0181 for iron while consumption was 2,1400 g ± 0,0099 for aluminum, and 2,4121 ± 0,0127 g for the iron when the use of alternating current. Removals were reached maximum 98 % ± 0 COD, 99,77 % ± 0,27 color removal and 100 % ± 0 turbidity removal for use alternating current and aluminum electrodes while were reached maximum 96 % ± 1 of COD, 99,46 % ± 0, 82 color removal and also 100% ± 0 to remove the turbidity in the use of iron electrodes. In the second study phase, reverse osmosis, the system used has reached rejections 99,53 % ± 0,12, 99,56 % ± 0,13 and 98,87 % ± 0,36, corresponding to pressures of 10 , 20 and 30 bar Moreover, increasing flows were obtained permeate 10,87 L/h.m2 ± 0,25, 15,67 L/h.m2 ± 0,53; 18,49 L/h.m2 ± 0,74 also with the increased pressure. At the end of the study was reached final effluent with low organic load and metals, it being able to release the bodies receptors. However, control mechanisms, particularly pH should be included in the design of such systems since this parameter changes over the process |
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Merçon, Fábiohttp://lattes.cnpq.br/2007782081314920Cerqueira, Alexandre Andradehttp://lattes.cnpq.br/2622295992000262Marques, Mônica Regina da Costahttp://lattes.cnpq.br/7254844415865063Monteiro, Luciane Pimentel Costahttp://lattes.cnpq.br/7111910051168656http://lattes.cnpq.br/1018027348338318Silva, Leonardo Firmino da2021-01-07T19:02:39Z2013-06-052013-02-26SILVA, Leonardo Firmino da. Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas. 2013. 140 f. Dissertação (Mestrado em Química ambiental; Polímeros) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2013.http://www.bdtd.uerj.br/handle/1/15765The uncontrolled discharge of wastewater into the environment over the last years has accelerated the process of contamination and degradation of water bodies in the world. These wastes contain high amounts of contaminants and concentration of organic matter which leads to the death of several species due to lack of oxygen and, in extreme cases, acceleration of eutrophication processes. In the specific case of oily wastewater, the use of techniques such as chemical coagulation, dissolved air injection, membranes, biochemical and electrochemical processes are described. However some of these processes have limitations which range from the concentration of the contaminant in the effluent, limitations in the operating conditions and even cost constraints. With this in mind, this paper has studied a hybrid system, batch process, in the treatment of oily waters simulated in the laboratory by adding a specific lubricating oil in an aqueous solution with emulsifiers and supporting electrolyte. The treatment system was consisted of two stages, which in the first was evaluated the use of the technique of electrocoagulation, which was responsible by the breaking stability of oil/water emulsions and a second stage which evaluated the use of membrane separation processes in order to remove the metal added to the effluent in the previous stage. The electrofloculation system was evaluated in relation to the use of iron and aluminum electrodes with electrical currents of 1A, 2A and 3A, in the continuous and alternate modes. The results showed a higher apparent mass consumption of electrodes when using direct current, 4,0337 g ± 0,0132 for aluminum and 3,8260 g ± 0,0181 for iron while consumption was 2,1400 g ± 0,0099 for aluminum, and 2,4121 ± 0,0127 g for the iron when the use of alternating current. Removals were reached maximum 98 % ± 0 COD, 99,77 % ± 0,27 color removal and 100 % ± 0 turbidity removal for use alternating current and aluminum electrodes while were reached maximum 96 % ± 1 of COD, 99,46 % ± 0, 82 color removal and also 100% ± 0 to remove the turbidity in the use of iron electrodes. In the second study phase, reverse osmosis, the system used has reached rejections 99,53 % ± 0,12, 99,56 % ± 0,13 and 98,87 % ± 0,36, corresponding to pressures of 10 , 20 and 30 bar Moreover, increasing flows were obtained permeate 10,87 L/h.m2 ± 0,25, 15,67 L/h.m2 ± 0,53; 18,49 L/h.m2 ± 0,74 also with the increased pressure. At the end of the study was reached final effluent with low organic load and metals, it being able to release the bodies receptors. However, control mechanisms, particularly pH should be included in the design of such systems since this parameter changes over the processA descarga desenfreada de águas residuais no meio ambiente, ao longo dos últimos anos, vem acelerando o processo de contaminação e degradação dos corpos hídricos no mundo. Tais rejeitos apresentam elevada carga de contaminantes e de concentração de matéria orgânica o que leva a mortandade das espécies pela concorrência ao oxigênio e, em casos extremos, a aceleração dos processos de eutrofização. Pensando nisso, o presente trabalho estudou um sistema híbrido, em batelada, de tratamento de águas oleosas simuladas em laboratório pela adição de um determinado óleo lubrificante em uma solução aquosa de agentes emulsificantes e eletrólito suporte. O sistema de tratamento foi composto de duas etapas, onde na primeira avaliou-se o uso da técnica da eletrofloculação, responsável por quebrar a estabilidade das emulsões óleo/água e de uma segunda que avaliou o uso de processos de separação com membranas visando à remoção do metal adicionado ao efluente na etapa anterior. O sistema de eletrofloculação foi avaliado em relação ao uso de eletrodos de alumínio e ferro com correntes elétricas de 1A, 2A e 3A, nos modos contínuo e alternado. Os resultados apontaram um maior consumo evidente de massa de eletrodos quando do uso da corrente contínua, 4,0337g ± 0,0132 para o alumínio e 3,8260g ± 0,0181 para o ferro ao passo que o consumo foi de 2,1400g ± 0,0099 para o alumínio e 2,4121g ± 0,0127 para o ferro quando do o uso da corrente alternada. Foram alcançadas remoções máximas de 98 % ± 0 da DQO, 99,77 % ± 0,27 de remoção da cor e 100 % ± 0 de remoção da turbidez para o uso de corrente alternada e eletrodos de alumínio enquanto se alcançaram remoções máximas 96 % ± 1 da DQO, 99,46 % ± 0,82 de remoção da cor e também 100 % ± 0 de remoção da turbidez no uso de eletrodos de ferro. Na segunda etapa do estudo, a osmose inversa, o sistema utilizado atingiu rejeições de 99,53 % ± 0,12; 99,56 % ± 0,13 e de 98,87 % ± 0,36, para pressões respectivas de 10, 20 e 30 bar. Além disso, foram obtidos fluxos crescentes de permeado 10,87 L/h.m2 ± 0,25; 15,67 L/h.m2 ± 0,53; 18,49 L/h.m2 ± 0,74 com o também aumento da pressão. Ao final do estudo alcançou-se um efluente final com baixa carga orgânica e de metais, estando o mesmo apto ao lançamento nos corpos receptores. Entretanto, mecanismos de controle, sobretudo de pH devem ser incluídos no projeto desses sistemas uma vez que esse parâmetro sofre alterações ao longo do processoSubmitted by Boris Flegr (boris@uerj.br) on 2021-01-07T19:02:39Z No. of bitstreams: 1 dissertacao leonardo firmino da Silva.pdf: 2674465 bytes, checksum: 69633abea019673825ee8766f3d8ece0 (MD5)Made available in DSpace on 2021-01-07T19:02:39Z (GMT). No. of bitstreams: 1 dissertacao leonardo firmino da Silva.pdf: 2674465 bytes, checksum: 69633abea019673825ee8766f3d8ece0 (MD5) Previous issue date: 2013-02-26Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade do Estado do Rio de JaneiroPrograma de Pós-Graduação em QuímicaUERJBRCentro de Tecnologia e Ciências::Instituto de QuímicaEnvironmentoily wastewaterelectroflocculationreverse osmosisMeio ambienteáguas residuais oleosaseletrofloculaçãoosmose inversaCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICAEmprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosasThe use of electroflocculation and reverse osmosis in the treatment of oily wastewaterinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UERJinstname:Universidade do Estado do Rio de Janeiro (UERJ)instacron:UERJORIGINALdissertacao leonardo firmino da Silva.pdfapplication/pdf2674465http://www.bdtd.uerj.br/bitstream/1/15765/1/dissertacao+leonardo+firmino+da+Silva.pdf69633abea019673825ee8766f3d8ece0MD511/157652024-02-27 14:47:44.485oai:www.bdtd.uerj.br:1/15765Biblioteca Digital de Teses e Dissertaçõeshttp://www.bdtd.uerj.br/PUBhttps://www.bdtd.uerj.br:8443/oai/requestbdtd.suporte@uerj.bropendoar:29032024-02-27T17:47:44Biblioteca Digital de Teses e Dissertações da UERJ - Universidade do Estado do Rio de Janeiro (UERJ)false |
dc.title.por.fl_str_mv |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas |
dc.title.alternative.eng.fl_str_mv |
The use of electroflocculation and reverse osmosis in the treatment of oily wastewater |
title |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas |
spellingShingle |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas Silva, Leonardo Firmino da Environment oily wastewater electroflocculation reverse osmosis Meio ambiente águas residuais oleosas eletrofloculação osmose inversa CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas |
title_full |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas |
title_fullStr |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas |
title_full_unstemmed |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas |
title_sort |
Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas |
author |
Silva, Leonardo Firmino da |
author_facet |
Silva, Leonardo Firmino da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Merçon, Fábio |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2007782081314920 |
dc.contributor.advisor-co1.fl_str_mv |
Cerqueira, Alexandre Andrade |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/2622295992000262 |
dc.contributor.referee1.fl_str_mv |
Marques, Mônica Regina da Costa |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/7254844415865063 |
dc.contributor.referee2.fl_str_mv |
Monteiro, Luciane Pimentel Costa |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/7111910051168656 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1018027348338318 |
dc.contributor.author.fl_str_mv |
Silva, Leonardo Firmino da |
contributor_str_mv |
Merçon, Fábio Cerqueira, Alexandre Andrade Marques, Mônica Regina da Costa Monteiro, Luciane Pimentel Costa |
dc.subject.eng.fl_str_mv |
Environment oily wastewater electroflocculation reverse osmosis |
topic |
Environment oily wastewater electroflocculation reverse osmosis Meio ambiente águas residuais oleosas eletrofloculação osmose inversa CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.por.fl_str_mv |
Meio ambiente águas residuais oleosas eletrofloculação osmose inversa |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
The uncontrolled discharge of wastewater into the environment over the last years has accelerated the process of contamination and degradation of water bodies in the world. These wastes contain high amounts of contaminants and concentration of organic matter which leads to the death of several species due to lack of oxygen and, in extreme cases, acceleration of eutrophication processes. In the specific case of oily wastewater, the use of techniques such as chemical coagulation, dissolved air injection, membranes, biochemical and electrochemical processes are described. However some of these processes have limitations which range from the concentration of the contaminant in the effluent, limitations in the operating conditions and even cost constraints. With this in mind, this paper has studied a hybrid system, batch process, in the treatment of oily waters simulated in the laboratory by adding a specific lubricating oil in an aqueous solution with emulsifiers and supporting electrolyte. The treatment system was consisted of two stages, which in the first was evaluated the use of the technique of electrocoagulation, which was responsible by the breaking stability of oil/water emulsions and a second stage which evaluated the use of membrane separation processes in order to remove the metal added to the effluent in the previous stage. The electrofloculation system was evaluated in relation to the use of iron and aluminum electrodes with electrical currents of 1A, 2A and 3A, in the continuous and alternate modes. The results showed a higher apparent mass consumption of electrodes when using direct current, 4,0337 g ± 0,0132 for aluminum and 3,8260 g ± 0,0181 for iron while consumption was 2,1400 g ± 0,0099 for aluminum, and 2,4121 ± 0,0127 g for the iron when the use of alternating current. Removals were reached maximum 98 % ± 0 COD, 99,77 % ± 0,27 color removal and 100 % ± 0 turbidity removal for use alternating current and aluminum electrodes while were reached maximum 96 % ± 1 of COD, 99,46 % ± 0, 82 color removal and also 100% ± 0 to remove the turbidity in the use of iron electrodes. In the second study phase, reverse osmosis, the system used has reached rejections 99,53 % ± 0,12, 99,56 % ± 0,13 and 98,87 % ± 0,36, corresponding to pressures of 10 , 20 and 30 bar Moreover, increasing flows were obtained permeate 10,87 L/h.m2 ± 0,25, 15,67 L/h.m2 ± 0,53; 18,49 L/h.m2 ± 0,74 also with the increased pressure. At the end of the study was reached final effluent with low organic load and metals, it being able to release the bodies receptors. However, control mechanisms, particularly pH should be included in the design of such systems since this parameter changes over the process |
publishDate |
2013 |
dc.date.available.fl_str_mv |
2013-06-05 |
dc.date.issued.fl_str_mv |
2013-02-26 |
dc.date.accessioned.fl_str_mv |
2021-01-07T19:02:39Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Leonardo Firmino da. Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas. 2013. 140 f. Dissertação (Mestrado em Química ambiental; Polímeros) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2013. |
dc.identifier.uri.fl_str_mv |
http://www.bdtd.uerj.br/handle/1/15765 |
identifier_str_mv |
SILVA, Leonardo Firmino da. Emprego dos processos de eletrofloculação e osmose inversa no tratamento de águas oleosas. 2013. 140 f. Dissertação (Mestrado em Química ambiental; Polímeros) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2013. |
url |
http://www.bdtd.uerj.br/handle/1/15765 |
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Universidade do Estado do Rio de Janeiro |
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Programa de Pós-Graduação em Química |
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UERJ |
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BR |
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Centro de Tecnologia e Ciências::Instituto de Química |
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Universidade do Estado do Rio de Janeiro |
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