Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://locus.ufv.br/handle/123456789/3836 |
Resumo: | In the pulp and paper industry there is a large consumption of water in their processes which are directly linked to the issue of wastewater and characteristics of these effluents . Normally these industries treat their effluents by biological processes such as activated sludge and aerated lagoons . The treatment system aerated lagoons are classified as optional or complete mixing due to the power density of the aeration equipment . This study analyzes the performance of a complete-mix aerated lagoon followed by decantation pond of Santher paper mill located in Governador Valadares, Minas Gerais. Checks the current status of the treatment system with respect to flow, hydraulic detention time (HDT), power density, temperature and the availability of dissolved oxygen (DO) provided by nine aerators. The volumetric flow measurement method was used to determine a rate of 2419 m3/day, with corresponding and TDH's of 8.76 and 1.87 for the aeration and settling ponds, respectively. The temperatures did not exhibit large variations within each pond, the aerators indicated power density of 3.12 W/m3, a value close to the recommended minimum degree, and DO concentrations on the surface of the pond aeration above the recommended minimum, yet close the bottom of the pond, DO levels were observed in the range of 0 to 2.0 mg/L.. Physico-chemical characterization of the effluent was performed and compared to standards for effluent discharge in force in the State of Minas Gerais. Removal efficiencies of COD, BOD, TSS and oil and grease were 82%, 83%, 95% and 84%, respectively. Nitrogen and phosphorus were found in excess in the lagoons. The final effluent did not present acute toxicity to Daphnia similis or chronic toxicity to Ceriodaphnia dubia. The soluble COD removal coefficent for the complete mix aerated lagoon was estimated to be 0,23/day. Specific ultraviolet absorbance ( SUVA 254 ) of the effluent decreased at each stage of treatment, while UV 254 /UV 280 values remained constant throughout the system. The study also examined the occurrence of browning and odor generation in the settling pond, where the episodes were associated with lack of oxygen in the pond triggering anaerobic condition. |
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Brandão, Marina Domingoshttp://lattes.cnpq.br/2924869356193621Mounteer, Ann Honorhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723208Y4Silva, Cláudio Mudadohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727931T6Matos, Antonio Teixeira dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783529H22015-03-26T13:28:34Z2015-01-222015-03-26T13:28:34Z2014-01-20BRANDÃO, Marina Domingos. Evaluation of operating conditions a paper mill wastewater treatment plant. 2014. 87 f. Dissertação (Mestrado em Geotecnia; Saneamento ambiental) - Universidade Federal de Viçosa, Viçosa, 2014.http://locus.ufv.br/handle/123456789/3836In the pulp and paper industry there is a large consumption of water in their processes which are directly linked to the issue of wastewater and characteristics of these effluents . Normally these industries treat their effluents by biological processes such as activated sludge and aerated lagoons . The treatment system aerated lagoons are classified as optional or complete mixing due to the power density of the aeration equipment . This study analyzes the performance of a complete-mix aerated lagoon followed by decantation pond of Santher paper mill located in Governador Valadares, Minas Gerais. Checks the current status of the treatment system with respect to flow, hydraulic detention time (HDT), power density, temperature and the availability of dissolved oxygen (DO) provided by nine aerators. The volumetric flow measurement method was used to determine a rate of 2419 m3/day, with corresponding and TDH's of 8.76 and 1.87 for the aeration and settling ponds, respectively. The temperatures did not exhibit large variations within each pond, the aerators indicated power density of 3.12 W/m3, a value close to the recommended minimum degree, and DO concentrations on the surface of the pond aeration above the recommended minimum, yet close the bottom of the pond, DO levels were observed in the range of 0 to 2.0 mg/L.. Physico-chemical characterization of the effluent was performed and compared to standards for effluent discharge in force in the State of Minas Gerais. Removal efficiencies of COD, BOD, TSS and oil and grease were 82%, 83%, 95% and 84%, respectively. Nitrogen and phosphorus were found in excess in the lagoons. The final effluent did not present acute toxicity to Daphnia similis or chronic toxicity to Ceriodaphnia dubia. The soluble COD removal coefficent for the complete mix aerated lagoon was estimated to be 0,23/day. Specific ultraviolet absorbance ( SUVA 254 ) of the effluent decreased at each stage of treatment, while UV 254 /UV 280 values remained constant throughout the system. The study also examined the occurrence of browning and odor generation in the settling pond, where the episodes were associated with lack of oxygen in the pond triggering anaerobic condition.Na indústria de papel há grande consumo de água em seus processos, o que gera grande emissão de águas residuárias com diferentes características. Normalmente, essas indústrias tratam seus efluentes por processos biológicos como lodos ativados e lagoas aeradas. Os sistemas de tratamento por lagoas aeradas são classificados como aeradas facultativas ou de mistura completa, em função da densidade de potência dos equipamentos de aeração. O presente estudo analisa o desempenho de uma lagoa aerada de mistura completa seguida de lagoa de decantação da fábrica de papel SANTHER, situada em Governador Valadares-MG . Verificou-se a atual situação do sistema de tratamento com relação à vazão, tempo de detenção hidráulica, densidade de potência, temperaturas e disponibilidade de oxigênio dissolvido, fornecido por 9 aeradores. Utilizando-se o método volumétrico de medição de vazão foi medida uma vazão de 2419 m3/dia, e os TDH ́s de 8,76 e 1,87 dias para as lagoas de aeração e decantação, respectivamente. As temperaturas não apresentaram grandes variações no interior de cada lagoa, os aeradores indicaram densidade de potência de 3,12 W/m3, valor próximo ao mínino recomendado, e OD com concentrações na superfície da lagoa de aeração superiores ao mínimo recomendado, porém, próximo ao fundo da lagoa, foram constatados teores de OD na faixa de 0 a 2,0 mg/L. Foi realizada uma caracterização físico-química do efluente e comparado aos padrões de lançamento de efluentes vigentes nos Estado de Minas Gerais. As eficiências de remoção de DQO, DBO, SST e óleos e graxas foram de 82%, 83%, 95% e 84%, respectivamente. Nitrogênio e fósforo apresentaram-se em excesso no efluente da lagoa aerada. O efluente final não apresentou toxicidade aguda à Daphnia similis e nem toxicidade crônica à Ceriodaphnia dúbia. O valor do coeficiente da DQO solúvel estimado para a lagoa aerada de mistura completa foi de 0,23/d. A absorvância ultravioleta específica (SUVA254) aumentou ao longo do sistema de tratamento, enquanto os valores de UV254/UV280 permaneceram constantes. O estudo também analisou a ocorrência de escurecimento e geração de odor na lagoa de decantação, em que os episódios foram associados a falta de oxigênio na lagoa desencadeando a condição de anaerobiose.application/pdfporUniversidade Federal de ViçosaMestrado em Engenharia CivilUFVBRGeotecnia; Saneamento ambientalPapel - IndústriaProcessos de fabricaçãoIndústria da celulose - PapelLagoa aeradaPaper - IndustryManufacturing processesIndustry cellulose - PaperAerated lagoonCNPQ::ENGENHARIAS::ENGENHARIA SANITARIA::TRATAMENTO DE AGUAS DE ABASTECIMENTO E RESIDUARIASAvaliação operacional da estação de tratamento de efluentes de uma indústria de papelEvaluation of operating conditions a paper mill wastewater treatment plantinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf3222494https://locus.ufv.br//bitstream/123456789/3836/1/texto%20completo.pdf78618fcec354fb9b93e356bb7523df94MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain139036https://locus.ufv.br//bitstream/123456789/3836/2/texto%20completo.pdf.txt3fe1913389acf0786e116591832d6fabMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3539https://locus.ufv.br//bitstream/123456789/3836/3/texto%20completo.pdf.jpgcf96afbb6bf4b8134c30a90b25818af8MD53123456789/38362016-04-09 23:19:48.187oai:locus.ufv.br:123456789/3836Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-10T02:19:48LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel |
dc.title.alternative.eng.fl_str_mv |
Evaluation of operating conditions a paper mill wastewater treatment plant |
title |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel |
spellingShingle |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel Brandão, Marina Domingos Papel - Indústria Processos de fabricação Indústria da celulose - Papel Lagoa aerada Paper - Industry Manufacturing processes Industry cellulose - Paper Aerated lagoon CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA::TRATAMENTO DE AGUAS DE ABASTECIMENTO E RESIDUARIAS |
title_short |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel |
title_full |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel |
title_fullStr |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel |
title_full_unstemmed |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel |
title_sort |
Avaliação operacional da estação de tratamento de efluentes de uma indústria de papel |
author |
Brandão, Marina Domingos |
author_facet |
Brandão, Marina Domingos |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/2924869356193621 |
dc.contributor.author.fl_str_mv |
Brandão, Marina Domingos |
dc.contributor.advisor1.fl_str_mv |
Mounteer, Ann Honor |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723208Y4 |
dc.contributor.referee1.fl_str_mv |
Silva, Cláudio Mudado |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727931T6 |
dc.contributor.referee2.fl_str_mv |
Matos, Antonio Teixeira de |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783529H2 |
contributor_str_mv |
Mounteer, Ann Honor Silva, Cláudio Mudado Matos, Antonio Teixeira de |
dc.subject.por.fl_str_mv |
Papel - Indústria Processos de fabricação Indústria da celulose - Papel Lagoa aerada |
topic |
Papel - Indústria Processos de fabricação Indústria da celulose - Papel Lagoa aerada Paper - Industry Manufacturing processes Industry cellulose - Paper Aerated lagoon CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA::TRATAMENTO DE AGUAS DE ABASTECIMENTO E RESIDUARIAS |
dc.subject.eng.fl_str_mv |
Paper - Industry Manufacturing processes Industry cellulose - Paper Aerated lagoon |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA::TRATAMENTO DE AGUAS DE ABASTECIMENTO E RESIDUARIAS |
description |
In the pulp and paper industry there is a large consumption of water in their processes which are directly linked to the issue of wastewater and characteristics of these effluents . Normally these industries treat their effluents by biological processes such as activated sludge and aerated lagoons . The treatment system aerated lagoons are classified as optional or complete mixing due to the power density of the aeration equipment . This study analyzes the performance of a complete-mix aerated lagoon followed by decantation pond of Santher paper mill located in Governador Valadares, Minas Gerais. Checks the current status of the treatment system with respect to flow, hydraulic detention time (HDT), power density, temperature and the availability of dissolved oxygen (DO) provided by nine aerators. The volumetric flow measurement method was used to determine a rate of 2419 m3/day, with corresponding and TDH's of 8.76 and 1.87 for the aeration and settling ponds, respectively. The temperatures did not exhibit large variations within each pond, the aerators indicated power density of 3.12 W/m3, a value close to the recommended minimum degree, and DO concentrations on the surface of the pond aeration above the recommended minimum, yet close the bottom of the pond, DO levels were observed in the range of 0 to 2.0 mg/L.. Physico-chemical characterization of the effluent was performed and compared to standards for effluent discharge in force in the State of Minas Gerais. Removal efficiencies of COD, BOD, TSS and oil and grease were 82%, 83%, 95% and 84%, respectively. Nitrogen and phosphorus were found in excess in the lagoons. The final effluent did not present acute toxicity to Daphnia similis or chronic toxicity to Ceriodaphnia dubia. The soluble COD removal coefficent for the complete mix aerated lagoon was estimated to be 0,23/day. Specific ultraviolet absorbance ( SUVA 254 ) of the effluent decreased at each stage of treatment, while UV 254 /UV 280 values remained constant throughout the system. The study also examined the occurrence of browning and odor generation in the settling pond, where the episodes were associated with lack of oxygen in the pond triggering anaerobic condition. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014-01-20 |
dc.date.accessioned.fl_str_mv |
2015-03-26T13:28:34Z |
dc.date.available.fl_str_mv |
2015-01-22 2015-03-26T13:28:34Z |
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 |
BRANDÃO, Marina Domingos. Evaluation of operating conditions a paper mill wastewater treatment plant. 2014. 87 f. Dissertação (Mestrado em Geotecnia; Saneamento ambiental) - Universidade Federal de Viçosa, Viçosa, 2014. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/3836 |
identifier_str_mv |
BRANDÃO, Marina Domingos. Evaluation of operating conditions a paper mill wastewater treatment plant. 2014. 87 f. Dissertação (Mestrado em Geotecnia; Saneamento ambiental) - Universidade Federal de Viçosa, Viçosa, 2014. |
url |
http://locus.ufv.br/handle/123456789/3836 |
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por |
language |
por |
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info:eu-repo/semantics/openAccess |
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Universidade Federal de Viçosa |
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Mestrado em Engenharia Civil |
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UFV |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Geotecnia; Saneamento ambiental |
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Universidade Federal de Viçosa |
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