Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante

Detalhes bibliográficos
Autor(a) principal: Silva, Iasmin Bezerra da
Data de Publicação: 2017
Tipo de documento: Trabalho de conclusão de curso
Idioma: por
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/37157
Resumo: Waste generated by the industries can cause serious damage to the environment, which can lead to contamination of soils and water. Thus, the treatment of soil and wastewater contaminated by organic compounds has been the object of attention for the scientific and industrial community. A promising alternative in this sense is the use of electrochemical technologies that have been demonstrating a high efficiency for the removal of these compounds, in a sustainable, effective way and using a shorter treatment time if compared to other technologies. In order to evaluate the efficiency of electrochemical technology, this work studied the use of Electrokinetic Remediation for the treatment of soil contaminated with Methyl Orange dye. Two experiments were carried out using graphite electrodes such as anodes and cathodes. It was investigated the addition of drinking water (Exp-1) and electrolytic solution of 0.05 M Sodium Sulphate (Exp-2) in the anodic reservoirs. Sodium Dodecyl Sulphate electrolyte solution at 3.46 mM was added to the cathodic reservoirs of both experiments. The results showed that Exp-2 was more efficient in decreasing the chemical oxygen demand (COD), due to the greater contribution of electro migration and electro-osmosis. The soil toxicity investigation was performed via the percentages of germination of sunflower seeds, which in central regions reached 88% for Exp. 2 and 66% for Exp- 1. In the portions near the electrodes, the pH negatively influenced the results. The effluent generated during the soil treatment was treated by electrochemical oxidation using Titanium and Boron-doped diamond (BDD) electrodes as anodes and cathodes. There were better results in the reduction of the organic matter of the effluent when it's been applied current of 60 mA cm -2 , in which the complete mineralization of the organic matter occurred with 120 min of treatment. The increase of the concentration of the persulfate ions during the electrochemical oxidation was more notorious in Exp-2. It was concluded that the Electrokinetic Remediation was efficient for the removal of the Methyl Orange dye from the soil, and that the addition of Sodium Dodecyl Sulfate and Sodium Sulphate contributed to this result, favoring the electromigration and electro-osmosis processes. The results also demonstrate the possibility of using treated soil for cultivation and reuse of the effluent generated during the treatment.
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spelling Silva, Iasmin Bezerra daCunha, Karina Patrícia Vieira daAraújo, Danyelle Medeiros deSantos, Elisama Vieira dos2017-12-20T01:25:33Z2021-09-20T20:35:23Z2017-12-20T01:25:33Z2021-09-20T20:35:23Z2017-11-2020150146590SILVA, Iasmin Bezerra da. Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante. 2017. 54f. Trabalho de Conclusão de Curso (Graduação em Engenharia Ambiental), Departamento de Engenharia Civil, Universidade Federal do Rio Grande do Norte, Natal, 2017.https://repositorio.ufrn.br/handle/123456789/37157Waste generated by the industries can cause serious damage to the environment, which can lead to contamination of soils and water. Thus, the treatment of soil and wastewater contaminated by organic compounds has been the object of attention for the scientific and industrial community. A promising alternative in this sense is the use of electrochemical technologies that have been demonstrating a high efficiency for the removal of these compounds, in a sustainable, effective way and using a shorter treatment time if compared to other technologies. In order to evaluate the efficiency of electrochemical technology, this work studied the use of Electrokinetic Remediation for the treatment of soil contaminated with Methyl Orange dye. Two experiments were carried out using graphite electrodes such as anodes and cathodes. It was investigated the addition of drinking water (Exp-1) and electrolytic solution of 0.05 M Sodium Sulphate (Exp-2) in the anodic reservoirs. Sodium Dodecyl Sulphate electrolyte solution at 3.46 mM was added to the cathodic reservoirs of both experiments. The results showed that Exp-2 was more efficient in decreasing the chemical oxygen demand (COD), due to the greater contribution of electro migration and electro-osmosis. The soil toxicity investigation was performed via the percentages of germination of sunflower seeds, which in central regions reached 88% for Exp. 2 and 66% for Exp- 1. In the portions near the electrodes, the pH negatively influenced the results. The effluent generated during the soil treatment was treated by electrochemical oxidation using Titanium and Boron-doped diamond (BDD) electrodes as anodes and cathodes. There were better results in the reduction of the organic matter of the effluent when it's been applied current of 60 mA cm -2 , in which the complete mineralization of the organic matter occurred with 120 min of treatment. The increase of the concentration of the persulfate ions during the electrochemical oxidation was more notorious in Exp-2. It was concluded that the Electrokinetic Remediation was efficient for the removal of the Methyl Orange dye from the soil, and that the addition of Sodium Dodecyl Sulfate and Sodium Sulphate contributed to this result, favoring the electromigration and electro-osmosis processes. The results also demonstrate the possibility of using treated soil for cultivation and reuse of the effluent generated during the treatment.Os resíduos gerados pelas indústrias podem causar sérios danos ao meio ambiente, podendo gerar contaminação de solos e água. Assim, o tratamento de solos e águas residuais contaminados por compostos orgânicos tem sido objeto de atenção da comunidade científica e industrial. Uma alternativa promissora neste sentido é a utilização de tecnologias eletroquímicas, que têm apresentado alta eficiência para remoção destes compostos, de forma sustentável, eficaz e utilizando menor tempo de tratamento se comparado a outras tecnologias. A fim de avaliar a eficiência da tecnologia eletroquímica, este trabalho estudou o emprego da Remediação Eletrocinética para o tratamento de solo contaminado pelo corante Alaranjado de Metila. Realizaram-se dois experimentos, utilizando eletrodos de grafite como ânodos e cátodos. Investigou-se a adição de água potável (Exp- 1) e de solução eletrolítica de Sulfato de Sódio a 0,05 M (Exp-2) nos reservatórios anódicos. Solução eletrolítica de Dodecil Sulfato de Sódio a 3,46 mM foi adicionado aos reservatórios catódicos de ambos os experimentos. Os resultados comprovaram que o Exp-2 foi mais eficiente na diminuição da Demanda Química de Oxigênio. A investigação da toxicidade do solo foi realizada em função dos percentuais de germinação de sementes de girassóis, que, em regiões centrais, atingiu 88 % para o Exp- 2 e 66% para o Exp- 1. Nas porções próximas aos eletrodos, o pH influenciou negativamente os resultados. O efluente gerado durante a descontaminação do solo foi tratado via oxidação eletroquímica empregando eletrodos de Diamante Dopado com Boro e de titânio. Os melhores resultados na diminuição da matéria orgânica do efluente foram obtidos para o Exp- 2 quando aplicada densidade de corrente de 60 mAcm -2 , em que ocorreu completa mineralização da matéria orgânica com 120 min de tratamento. O aumento da concentração dos íons persulfato durante a oxidação eletroquímica foi mais notório no Exp- 2. Conclui-se que a Remediação Eletrocinética foi eficiente para a remoção do corante Alaranjado de Metila do solo, e que a adição de Dodecil Sulfato de Sódio e de Sulfato de Sódio contribuiu com este resultado, favorecendo os processos de eletromigração e eletro-osmose. Os resultados demonstram também a possibilidade de emprego do solo tratado para fins de cultivo e de reuso do efluente gerado durante o tratamento.Universidade Federal do Rio Grande do NorteUFRNBrasilEngenharia AmbientalRemediação EletrocinéticaTecnologia IntegradaToxicidade do soloíndices de GerminaçãoOxidação EletroquímicaAplicação de tratamentos eletroquímicos para remediação de solo contaminado por coranteApplication of electrochemical treatments for remediation of dye contaminated soilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccessporreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNTEXTAplicação de tratamentos_Monografia.pdf.txtExtracted texttext/plain99261https://repositorio.ufrn.br/bitstream/123456789/37157/1/Aplica%c3%a7%c3%a3o%20de%20tratamentos_Monografia.pdf.txt3ee8b45e6fbd3afb89775ac9c7e26388MD51ORIGINALAplicação de tratamentos_Monografia.pdfTCC-2017.2application/pdf1980367https://repositorio.ufrn.br/bitstream/123456789/37157/2/Aplica%c3%a7%c3%a3o%20de%20tratamentos_Monografia.pdfcb1afe0b16a6bc37553b4b294792a1beMD52CC-LICENSElicense_urlapplication/octet-stream43https://repositorio.ufrn.br/bitstream/123456789/37157/3/license_url321f3992dd3875151d8801b773ab32edMD53license_textapplication/octet-stream0https://repositorio.ufrn.br/bitstream/123456789/37157/4/license_textd41d8cd98f00b204e9800998ecf8427eMD54license_rdfapplication/octet-stream0https://repositorio.ufrn.br/bitstream/123456789/37157/5/license_rdfd41d8cd98f00b204e9800998ecf8427eMD55LICENSElicense.txttext/plain756https://repositorio.ufrn.br/bitstream/123456789/37157/6/license.txta80a9cda2756d355b388cc443c3d8a43MD56123456789/371572021-09-20 17:35:23.212oai:https://repositorio.ufrn.br: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ório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-09-20T20:35:23Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pr_BR.fl_str_mv Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
dc.title.alternative.pr_BR.fl_str_mv Application of electrochemical treatments for remediation of dye contaminated soil
title Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
spellingShingle Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
Silva, Iasmin Bezerra da
Remediação Eletrocinética
Tecnologia Integrada
Toxicidade do solo
índices de Germinação
Oxidação Eletroquímica
title_short Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
title_full Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
title_fullStr Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
title_full_unstemmed Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
title_sort Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante
author Silva, Iasmin Bezerra da
author_facet Silva, Iasmin Bezerra da
author_role author
dc.contributor.referees1.none.fl_str_mv Cunha, Karina Patrícia Vieira da
dc.contributor.referees2.none.fl_str_mv Araújo, Danyelle Medeiros de
dc.contributor.author.fl_str_mv Silva, Iasmin Bezerra da
dc.contributor.advisor1.fl_str_mv Santos, Elisama Vieira dos
contributor_str_mv Santos, Elisama Vieira dos
dc.subject.pr_BR.fl_str_mv Remediação Eletrocinética
Tecnologia Integrada
Toxicidade do solo
índices de Germinação
Oxidação Eletroquímica
topic Remediação Eletrocinética
Tecnologia Integrada
Toxicidade do solo
índices de Germinação
Oxidação Eletroquímica
description Waste generated by the industries can cause serious damage to the environment, which can lead to contamination of soils and water. Thus, the treatment of soil and wastewater contaminated by organic compounds has been the object of attention for the scientific and industrial community. A promising alternative in this sense is the use of electrochemical technologies that have been demonstrating a high efficiency for the removal of these compounds, in a sustainable, effective way and using a shorter treatment time if compared to other technologies. In order to evaluate the efficiency of electrochemical technology, this work studied the use of Electrokinetic Remediation for the treatment of soil contaminated with Methyl Orange dye. Two experiments were carried out using graphite electrodes such as anodes and cathodes. It was investigated the addition of drinking water (Exp-1) and electrolytic solution of 0.05 M Sodium Sulphate (Exp-2) in the anodic reservoirs. Sodium Dodecyl Sulphate electrolyte solution at 3.46 mM was added to the cathodic reservoirs of both experiments. The results showed that Exp-2 was more efficient in decreasing the chemical oxygen demand (COD), due to the greater contribution of electro migration and electro-osmosis. The soil toxicity investigation was performed via the percentages of germination of sunflower seeds, which in central regions reached 88% for Exp. 2 and 66% for Exp- 1. In the portions near the electrodes, the pH negatively influenced the results. The effluent generated during the soil treatment was treated by electrochemical oxidation using Titanium and Boron-doped diamond (BDD) electrodes as anodes and cathodes. There were better results in the reduction of the organic matter of the effluent when it's been applied current of 60 mA cm -2 , in which the complete mineralization of the organic matter occurred with 120 min of treatment. The increase of the concentration of the persulfate ions during the electrochemical oxidation was more notorious in Exp-2. It was concluded that the Electrokinetic Remediation was efficient for the removal of the Methyl Orange dye from the soil, and that the addition of Sodium Dodecyl Sulfate and Sodium Sulphate contributed to this result, favoring the electromigration and electro-osmosis processes. The results also demonstrate the possibility of using treated soil for cultivation and reuse of the effluent generated during the treatment.
publishDate 2017
dc.date.accessioned.fl_str_mv 2017-12-20T01:25:33Z
2021-09-20T20:35:23Z
dc.date.available.fl_str_mv 2017-12-20T01:25:33Z
2021-09-20T20:35:23Z
dc.date.issued.fl_str_mv 2017-11-20
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dc.identifier.citation.fl_str_mv SILVA, Iasmin Bezerra da. Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante. 2017. 54f. Trabalho de Conclusão de Curso (Graduação em Engenharia Ambiental), Departamento de Engenharia Civil, Universidade Federal do Rio Grande do Norte, Natal, 2017.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/37157
identifier_str_mv 20150146590
SILVA, Iasmin Bezerra da. Aplicação de tratamentos eletroquímicos para remediação de solo contaminado por corante. 2017. 54f. Trabalho de Conclusão de Curso (Graduação em Engenharia Ambiental), Departamento de Engenharia Civil, Universidade Federal do Rio Grande do Norte, Natal, 2017.
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dc.publisher.department.fl_str_mv Engenharia Ambiental
publisher.none.fl_str_mv Universidade Federal do Rio Grande do Norte
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