Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UEPB |
Texto Completo: | http://tede.bc.uepb.edu.br/tede/jspui/handle/tede/2241 |
Resumo: | The process that occurs in anaerobic reactors called sulfetogênese is a process considered undesirable due to various problems he carries with the production of sulfides, causing: harsh odors, corrosion, toxicity and decreased concentrations of methane in the biogas. The present research aimed to develop processes to reduce the concentration of sulfides present in the effluent of anaerobic reactors in wastewater treatment. The experimental investigation was divided into two phases. In the first two Upflow Anaerobic reactors were used Sludge Blanket – UASB, one with low concentration of oxygen in the sludge blanket (UASB – O 2 ) and another with a UASB features without modification to be compared (UASB – control). In the second phase we used a Hybrid anaerobic reactor (RAH): composed of two overlapping UASB reactor ballasts at the bottom and an anaerobic filter at the top. When analyzing the results of the UASBs reactors, it was possible to identify that the addition of oxygen resulted in oxidation of the sulfide produced in the UASB reactor sulphate obtaining a final concentration in the effluent of 12.09± 3.22 mg S-SO 4 2 .L -1 -2 .L -1 and 2.54±1.92 mg S-S , inhibiting the stench and various problems related to the formation of sulfide on anaerobic reactors. The UASB – control, produced an effluent with a concentration of 13.20±8.65 mg S-S -2 .L -1 and 1.57±0.68 mg S-SO 4 -2 .L -1 by following the principles of an anaerobic reactor, when comparing with the other reactor. With the results obtained from the RAH was possible to assess that at the bottom (UASB) the sulfetogênese effectively occurred, reducing the sulfate contained in wastewater in sulphide and subsequently forming the hydrogen sulfide (H 2 S). At the top (filter) the oxidation of sulfide formed the elemental sulphur and sulphate, inhibiting so the stench of anaerobic reactors. |
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Sousa, José Tavares de13140124449http://lattes.cnpq.br/9348418607084437Brito, André Luiz Fiquene de41513398415http://lattes.cnpq.br/6217476906635491Haandel, Adrianus Cornelius Van10884505472http://lattes.cnpq.br/498272398871606205161372397http://lattes.cnpq.br/8249136742080666Lima, Jéssyca de Freitas2016-03-03T13:47:59Z2015-02-05LIMA, J. de F. Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário. 2015. 97f. Dissertação (Programa de Pós-Graduação em Ciência e Tecnologia Ambiental - PPGCTA)- Universidade Estadual da Paraíba, Campina Grande, 2015.http://tede.bc.uepb.edu.br/tede/jspui/handle/tede/2241The process that occurs in anaerobic reactors called sulfetogênese is a process considered undesirable due to various problems he carries with the production of sulfides, causing: harsh odors, corrosion, toxicity and decreased concentrations of methane in the biogas. The present research aimed to develop processes to reduce the concentration of sulfides present in the effluent of anaerobic reactors in wastewater treatment. The experimental investigation was divided into two phases. In the first two Upflow Anaerobic reactors were used Sludge Blanket – UASB, one with low concentration of oxygen in the sludge blanket (UASB – O 2 ) and another with a UASB features without modification to be compared (UASB – control). In the second phase we used a Hybrid anaerobic reactor (RAH): composed of two overlapping UASB reactor ballasts at the bottom and an anaerobic filter at the top. When analyzing the results of the UASBs reactors, it was possible to identify that the addition of oxygen resulted in oxidation of the sulfide produced in the UASB reactor sulphate obtaining a final concentration in the effluent of 12.09± 3.22 mg S-SO 4 2 .L -1 -2 .L -1 and 2.54±1.92 mg S-S , inhibiting the stench and various problems related to the formation of sulfide on anaerobic reactors. The UASB – control, produced an effluent with a concentration of 13.20±8.65 mg S-S -2 .L -1 and 1.57±0.68 mg S-SO 4 -2 .L -1 by following the principles of an anaerobic reactor, when comparing with the other reactor. With the results obtained from the RAH was possible to assess that at the bottom (UASB) the sulfetogênese effectively occurred, reducing the sulfate contained in wastewater in sulphide and subsequently forming the hydrogen sulfide (H 2 S). At the top (filter) the oxidation of sulfide formed the elemental sulphur and sulphate, inhibiting so the stench of anaerobic reactors.O processo que ocorre em reatores anaeróbios denominado de sulfetogênese é um processo considerado indesejável devido aos vários problemas que ele acarreta com a produção de sulfetos, causando: odores agressivos, corrosão, toxicidade e diminuição da concentração de metano no biogás. A presente pesquisa objetivou desenvolver processos para reduzir a concentração de sulfetos presente no efluente de reatores anaeróbios, no tratamento de águas residuárias. A investigação experimental foi dividida em duas fases. Na primeira foram utilizados dois reatores Upflow Anaerobic Sludge Blanket – UASB, um com baixa concentração de oxigênio na manta de lodo (UASB – O 2 ) e outro com características de um UASB sem modificações para serem comparados (UASB - Controle). Na segunda fase foi utilizado um Reator Anaeróbio Híbrido (RAH): composto por dois reatores sobrepostos, um reator UASB na parte inferior e um filtro anaeróbio na parte superior. Ao se analisar os resultados dos reatores UASBs, foi possível identificar que a adição de oxigênio resultou na oxidação do sulfeto produzido no reator UASB a sulfato obtendo uma concentração final no efluente de 12,09±3,22 mg S-SO 4 2- .L -1 e 2,54±1,92 mg S-S 2- .L -1 , inibindo o mau cheiro e diversos problemas relacionados com a formação de sulfeto em reatores anaeróbios. O UASB – Controle, produziu um efluente com uma concentração de 13,20±8,65 mg SS 2- .L -1 e 1,57±0,68 mg S-SO 4 2- .L -1 seguindo assim os princípios de um reator anaeróbio, ao comparar com o outro reator. Com os resultados obtidos do RAH foi possível avaliar que na parte inferior (UASB) a sulfetogênese ocorreu de forma efetiva, reduzindo o sulfato contido na água residuária a sulfeto e posteriormente formando o sulfeto de hidrogênio (H 2 S). Na parte superior (Filtro) ocorreu a oxidação do sulfeto formado à enxofre elementar e a sulfato, inibindo assim o mau cheiro de reatores anaeróbio.Submitted by Jean Medeiros (jeanletras@uepb.edu.br) on 2016-03-03T13:47:59Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) PDF - Jéssyca de Freitas Lima.pdf: 2404063 bytes, checksum: 1bc2b053016876aef2b6f46044945849 (MD5)Made available in DSpace on 2016-03-03T13:47:59Z (GMT). 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dc.title.por.fl_str_mv |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário |
dc.title.alternative.eng.fl_str_mv |
Control and removal of sulfides in anaerobic reactors treating sewage |
title |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário |
spellingShingle |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário Lima, Jéssyca de Freitas Reator anaeróbio Reator UASB Sulfeto Sulfato Sulfide Sulfate Hybrid Anaerobic Reactor UASB reactor ENGENHARIAS::ENGENHARIA SANITARIA |
title_short |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário |
title_full |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário |
title_fullStr |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário |
title_full_unstemmed |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário |
title_sort |
Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário |
author |
Lima, Jéssyca de Freitas |
author_facet |
Lima, Jéssyca de Freitas |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Sousa, José Tavares de |
dc.contributor.advisor1ID.fl_str_mv |
13140124449 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/9348418607084437 |
dc.contributor.referee1.fl_str_mv |
Brito, André Luiz Fiquene de |
dc.contributor.referee1ID.fl_str_mv |
41513398415 |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/6217476906635491 |
dc.contributor.referee2.fl_str_mv |
Haandel, Adrianus Cornelius Van |
dc.contributor.referee2ID.fl_str_mv |
10884505472 |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4982723988716062 |
dc.contributor.authorID.fl_str_mv |
05161372397 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8249136742080666 |
dc.contributor.author.fl_str_mv |
Lima, Jéssyca de Freitas |
contributor_str_mv |
Sousa, José Tavares de Brito, André Luiz Fiquene de Haandel, Adrianus Cornelius Van |
dc.subject.por.fl_str_mv |
Reator anaeróbio Reator UASB Sulfeto Sulfato |
topic |
Reator anaeróbio Reator UASB Sulfeto Sulfato Sulfide Sulfate Hybrid Anaerobic Reactor UASB reactor ENGENHARIAS::ENGENHARIA SANITARIA |
dc.subject.eng.fl_str_mv |
Sulfide Sulfate Hybrid Anaerobic Reactor UASB reactor |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA SANITARIA |
description |
The process that occurs in anaerobic reactors called sulfetogênese is a process considered undesirable due to various problems he carries with the production of sulfides, causing: harsh odors, corrosion, toxicity and decreased concentrations of methane in the biogas. The present research aimed to develop processes to reduce the concentration of sulfides present in the effluent of anaerobic reactors in wastewater treatment. The experimental investigation was divided into two phases. In the first two Upflow Anaerobic reactors were used Sludge Blanket – UASB, one with low concentration of oxygen in the sludge blanket (UASB – O 2 ) and another with a UASB features without modification to be compared (UASB – control). In the second phase we used a Hybrid anaerobic reactor (RAH): composed of two overlapping UASB reactor ballasts at the bottom and an anaerobic filter at the top. When analyzing the results of the UASBs reactors, it was possible to identify that the addition of oxygen resulted in oxidation of the sulfide produced in the UASB reactor sulphate obtaining a final concentration in the effluent of 12.09± 3.22 mg S-SO 4 2 .L -1 -2 .L -1 and 2.54±1.92 mg S-S , inhibiting the stench and various problems related to the formation of sulfide on anaerobic reactors. The UASB – control, produced an effluent with a concentration of 13.20±8.65 mg S-S -2 .L -1 and 1.57±0.68 mg S-SO 4 -2 .L -1 by following the principles of an anaerobic reactor, when comparing with the other reactor. With the results obtained from the RAH was possible to assess that at the bottom (UASB) the sulfetogênese effectively occurred, reducing the sulfate contained in wastewater in sulphide and subsequently forming the hydrogen sulfide (H 2 S). At the top (filter) the oxidation of sulfide formed the elemental sulphur and sulphate, inhibiting so the stench of anaerobic reactors. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-02-05 |
dc.date.accessioned.fl_str_mv |
2016-03-03T13:47:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
LIMA, J. de F. Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário. 2015. 97f. Dissertação (Programa de Pós-Graduação em Ciência e Tecnologia Ambiental - PPGCTA)- Universidade Estadual da Paraíba, Campina Grande, 2015. |
dc.identifier.uri.fl_str_mv |
http://tede.bc.uepb.edu.br/tede/jspui/handle/tede/2241 |
identifier_str_mv |
LIMA, J. de F. Controle e remoção de sulfetos em reatores anaeróbios tratando esgoto sanitário. 2015. 97f. Dissertação (Programa de Pós-Graduação em Ciência e Tecnologia Ambiental - PPGCTA)- Universidade Estadual da Paraíba, Campina Grande, 2015. |
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http://tede.bc.uepb.edu.br/tede/jspui/handle/tede/2241 |
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por |
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UEPB |
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Brasil |
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Pró-Reitoria de Pós-Graduação e Pesquisa - PRPGP |
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Universidade Estadual da Paraíba |
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