Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba.
Ano de defesa: | 2009 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso embargado |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Viçosa
|
Programa de Pós-Graduação: |
Mestrado em Engenharia Agrícola
|
Departamento: |
Construções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produ
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://locus.ufv.br/handle/123456789/3683 |
Resumo: | Water quality management in Brazil has not been deserving the same prominence given to water quantity management, being these in legal aspects, institutional arrangements, or in the planning and operation of management systems. Thus, the main focus of this research was to contribute, in the ambit of water resources and environment, for the knowing, in mathematical and experimental terms, of water quality and of the capacity of self- purification of Pomba river, using mathematical models as supporting decision-making in the process of planning and management of water resources. It was used the mathematical models of Streeter-Phelps, modified, QUAL-UFMG and QUAL2Kw for evaluating water quality and the capacity of self-purification, both in terms of space and time, of the medium course of Pomba river. The spatial analysis covered the study of water quality along nine sections of monitoring, between the cities of Astolfo Dutra and Cataguases, completing a total distance of 42,8 km, and the time analysis comprised studies in dry and rainy periods, between the months of October of 2008 to January of 2009. In order to better represent the qualitative conditions of the aquatic ecosystems, the models were calibrated and confirmed using, respectively, 16 and 6 parameters of water quality. The study of the capacity of self-purification of Pomba river was made following the results generated by quality models, mainly in terms of dissolved oxygen (DO), biochemical oxygen demand (BOD), deoxygenation rate constant (K1) and reaeration (K2). The found results showed that one of the main sources of degradation of water quality of the medium course of the Pomba river refers to the throwing of domestic sewage in both hydrological periods studied, due to the great concentration of organic matter found. During the dry period, the water quality constituent that influenced the most in the degradation of the water of Pomba river was the BOD, presenting concentrations of order of 5 mg L-1, the greatest concentrations were found in the city of Cataguases, with 13 mg L-1. In that city the BOD concentration was above the limit established by the resolution of CONAMA 357/2005, being this water course ranked in class 4. The medium concentration of dissolved oxygen found in the dry period of the year was 5,6 mg L-1. During the rainy period it was found a improvement of water quality in terms of DO (6 mg L-1), but the excess of organic matter (7,3 mg L-1) and the increasing of the concentration of other water quality parameters, as sediments, phosphorus, nitrogen and coliforms, made decrease the satisfactory levels of water quality making it impossible to use these waters for certain activities. The qualitative situation of water sources in this period is not worse just because of the expressive flowing of Pomba river, since it occurs a process of dilution of organic matter and of constituents of the water quality. According to the resolution CONAMA 357/2005, all the studied patch is ranked in class 3. In the patch located between the cities of Astolfo Dutra and Dona Euzébia it was found, in both hydrological conditions, the least capacity of self-purification of effluents, making it necessary to take preventive actions to control the throwing in natura of domestic sewages directly on water flow. The mathematical model that adjusted better to the data of water quality of Pomba river was the QUAK-UFMG, considering both dry and rainy periods. It was verified that the use of mathematical models in the evaluation of water quality and in studies of self- depuration in rivers may constitute an important tool as support in the decision-making in the process of planning, monitoring, and management of water resources. |
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Guedes, Hugo Alexandre Soareshttp://lattes.cnpq.br/5120976859905217Matos, Antonio Teixeira dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783529H2Silva, Demetrius David dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4786123E5Mendonça, Antônio Sérgio Ferreirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783891Z6Borges, Alisson Carrarohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4706302U9Ramos, Márcio Motahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783666U82015-03-26T13:24:02Z2015-03-062015-03-26T13:24:02Z2009-07-21GUEDES, Hugo Alexandre Soares. Modelin of the water quality and of the self-purification capacity of Pomba River.. 2009. 149 f. Dissertação (Mestrado em Construções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produ) - Universidade Federal de Viçosa, Viçosa, 2009.http://locus.ufv.br/handle/123456789/3683Water quality management in Brazil has not been deserving the same prominence given to water quantity management, being these in legal aspects, institutional arrangements, or in the planning and operation of management systems. Thus, the main focus of this research was to contribute, in the ambit of water resources and environment, for the knowing, in mathematical and experimental terms, of water quality and of the capacity of self- purification of Pomba river, using mathematical models as supporting decision-making in the process of planning and management of water resources. It was used the mathematical models of Streeter-Phelps, modified, QUAL-UFMG and QUAL2Kw for evaluating water quality and the capacity of self-purification, both in terms of space and time, of the medium course of Pomba river. The spatial analysis covered the study of water quality along nine sections of monitoring, between the cities of Astolfo Dutra and Cataguases, completing a total distance of 42,8 km, and the time analysis comprised studies in dry and rainy periods, between the months of October of 2008 to January of 2009. In order to better represent the qualitative conditions of the aquatic ecosystems, the models were calibrated and confirmed using, respectively, 16 and 6 parameters of water quality. The study of the capacity of self-purification of Pomba river was made following the results generated by quality models, mainly in terms of dissolved oxygen (DO), biochemical oxygen demand (BOD), deoxygenation rate constant (K1) and reaeration (K2). The found results showed that one of the main sources of degradation of water quality of the medium course of the Pomba river refers to the throwing of domestic sewage in both hydrological periods studied, due to the great concentration of organic matter found. During the dry period, the water quality constituent that influenced the most in the degradation of the water of Pomba river was the BOD, presenting concentrations of order of 5 mg L-1, the greatest concentrations were found in the city of Cataguases, with 13 mg L-1. In that city the BOD concentration was above the limit established by the resolution of CONAMA 357/2005, being this water course ranked in class 4. The medium concentration of dissolved oxygen found in the dry period of the year was 5,6 mg L-1. During the rainy period it was found a improvement of water quality in terms of DO (6 mg L-1), but the excess of organic matter (7,3 mg L-1) and the increasing of the concentration of other water quality parameters, as sediments, phosphorus, nitrogen and coliforms, made decrease the satisfactory levels of water quality making it impossible to use these waters for certain activities. The qualitative situation of water sources in this period is not worse just because of the expressive flowing of Pomba river, since it occurs a process of dilution of organic matter and of constituents of the water quality. According to the resolution CONAMA 357/2005, all the studied patch is ranked in class 3. In the patch located between the cities of Astolfo Dutra and Dona Euzébia it was found, in both hydrological conditions, the least capacity of self-purification of effluents, making it necessary to take preventive actions to control the throwing in natura of domestic sewages directly on water flow. The mathematical model that adjusted better to the data of water quality of Pomba river was the QUAK-UFMG, considering both dry and rainy periods. It was verified that the use of mathematical models in the evaluation of water quality and in studies of self- depuration in rivers may constitute an important tool as support in the decision-making in the process of planning, monitoring, and management of water resources.A gestão da qualidade da água no Brasil não tem merecido o mesmo destaque dado à gestão da quantidade da água, quer no aspecto legal, quer nos arranjos institucionais em funcionamento no setor ou no planejamento e na operacionalização dos sistemas de gestão. Dessa forma, o principal foco da pesquisa foi contribuir, no âmbito da gestão de recursos hídricos e ambientais, para o conhecimento, em termos matemáticos e experimentais, da qualidade da água e da capacidade de autodepuração do Rio Pomba, utilizando modelos matemáticos como subsídio para a tomada de decisão nos processos de planejamento e gestão dos recursos hídricos. Foram utilizados no trabalho os modelos matemáticos de Streeter-Phelps modificado, QUAL-UFMG e QUAL2Kw para avaliar a qualidade da água e a capacidade de autodepuração, em termos espaciais e temporais, do curso médio do Rio Pomba. A análise espacial compreendeu o estudo da qualidade da água ao longo de nove seções de monitoramento, entre os municípios de Astolfo Dutra e Cataguases, perfazendo um trecho total de 42,8 km, e a análise temporal contemplou os estudos nos períodos seco e chuvoso, entre os meses de outubro de 2008 a janeiro de 2009. Para melhor representar as condições qualitativas dos ecossistemas aquáticos, os mesmos foram calibrados e validados utilizando, respectivamente, 16 e 6 parâmetros de qualidade da água. O estudo da capacidade de autodepuração do Rio Pomba deu-se em função dos resultados gerados pelos modelos de qualidade, principalmente em termos de Oxigênio Dissolvido (OD), Demanda Bioquímica de Oxigênio (DBO) e dos coeficientes de desoxigenação (K1) e reaeração (K2). Os resultados encontrados indicaram que uma das principais fontes de degradação da qualidade das águas do curso médio do Rio Pomba é o lançamento de efluentes domésticos nos dois períodos hidrológicos estudados, devido às grandes concentrações de matéria orgânica encontradas. Durante o período seco, o constituinte de qualidade da água melhor associado à condição de degradação das águas do Rio Pomba foi a DBO, apresentando concentrações da ordem de 5 mg L-1, sendo as maiores concentrações encontradas na cidade de Cataguases, com 13 mg L-1. Nesse município, a concentração de DBO ficou acima do limite estabelecido na Resolução CONAMA 357/2005, estando o curso d’água na condição classe 4. A concentração média de oxigênio dissolvido encontrada no período seco do ano foi de 5,6 mg L-1. Durante o período chuvoso verificou-se melhora na qualidade da água, em termos de OD (6 mg L-1), mas o excesso de matéria orgânica (7,3 mg L-1) e o aumento das concentrações de outros parâmetros de qualidade da água, como sedimentos, fósforo, nitrogênio e coliformes, fez decrescer os níveis satisfatórios de qualidade, impossibilitando o uso dessas águas para algumas finalidades. A situação qualitativa dos recursos hídricos, nesse período, só não se encontra pior devido à vazão expressiva no Rio Pomba, uma vez que ocorre um processo de diluição da matéria orgânica e dos demais constituintes de qualidade da água. Segundo a Resolução CONAMA 357/2005, todo o trecho estudado está na condição classe 3. No trecho localizado entre os municípios de Astolfo Dutra e Dona Euzébia encontrou-se, nas duas condições hidrológicas, a menor capacidade de autodepuração de efluentes, sendo necessário tomar medidas preventivas no controle dos lançamentos in natura de esgotos domésticos diretamente no curso d’água. O modelo matemático que melhor se ajustou aos dados de qualidade de água no Rio Pomba foi o QUAL-UFMG, considerando os períodos seco e chuvoso. Verificou-se que a utilização de modelos matemáticos na avaliação da qualidade da água e nos estudos de autodepuração em rios pode constituir importante ferramenta no subsídio para a tomada de decisão nos processos de planejamento, monitoramento e gestão dos recursos hídricos.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de ViçosaMestrado em Engenharia AgrícolaUFVBRConstruções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produRecursos hídricos - AdministraçãoÁgua - QualidadeSucessão ecológicaModelos matemáticosLimnologiaRio Pomba, Bacia (MG)Water resources - AdministrationWater - QualityEcological successionMathematical modelsLimnologyPomba River, Basin (MG)CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLAModelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba.Modelin of the water quality and of the self-purification capacity of Pomba River.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/embargoedAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf2007855https://locus.ufv.br//bitstream/123456789/3683/1/texto%20completo.pdf20362581ab1f117c6a53506a0fbc584cMD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain238532https://locus.ufv.br//bitstream/123456789/3683/2/texto%20completo.pdf.txta00e06c0d2dd9ce14d0a9310e199a2fbMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3562https://locus.ufv.br//bitstream/123456789/3683/3/texto%20completo.pdf.jpge7f4ffd1b5af9188ac535dd3f0071b25MD53123456789/36832016-04-09 23:11:22.707oai:locus.ufv.br:123456789/3683Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-10T02:11:22LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. |
dc.title.alternative.eng.fl_str_mv |
Modelin of the water quality and of the self-purification capacity of Pomba River. |
title |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. |
spellingShingle |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. Guedes, Hugo Alexandre Soares Recursos hídricos - Administração Água - Qualidade Sucessão ecológica Modelos matemáticos Limnologia Rio Pomba, Bacia (MG) Water resources - Administration Water - Quality Ecological succession Mathematical models Limnology Pomba River, Basin (MG) CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA |
title_short |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. |
title_full |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. |
title_fullStr |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. |
title_full_unstemmed |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. |
title_sort |
Modelagem da qualidade da água e da capacidade de autodepuração do Rio Pomba. |
author |
Guedes, Hugo Alexandre Soares |
author_facet |
Guedes, Hugo Alexandre Soares |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/5120976859905217 |
dc.contributor.author.fl_str_mv |
Guedes, Hugo Alexandre Soares |
dc.contributor.advisor-co1.fl_str_mv |
Matos, Antonio Teixeira de |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783529H2 |
dc.contributor.advisor1.fl_str_mv |
Silva, Demetrius David da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4786123E5 |
dc.contributor.referee1.fl_str_mv |
Mendonça, Antônio Sérgio Ferreira |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783891Z6 |
dc.contributor.referee2.fl_str_mv |
Borges, Alisson Carraro |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4706302U9 |
dc.contributor.referee3.fl_str_mv |
Ramos, Márcio Mota |
dc.contributor.referee3Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783666U8 |
contributor_str_mv |
Matos, Antonio Teixeira de Silva, Demetrius David da Mendonça, Antônio Sérgio Ferreira Borges, Alisson Carraro Ramos, Márcio Mota |
dc.subject.por.fl_str_mv |
Recursos hídricos - Administração Água - Qualidade Sucessão ecológica Modelos matemáticos Limnologia Rio Pomba, Bacia (MG) |
topic |
Recursos hídricos - Administração Água - Qualidade Sucessão ecológica Modelos matemáticos Limnologia Rio Pomba, Bacia (MG) Water resources - Administration Water - Quality Ecological succession Mathematical models Limnology Pomba River, Basin (MG) CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA |
dc.subject.eng.fl_str_mv |
Water resources - Administration Water - Quality Ecological succession Mathematical models Limnology Pomba River, Basin (MG) |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA |
description |
Water quality management in Brazil has not been deserving the same prominence given to water quantity management, being these in legal aspects, institutional arrangements, or in the planning and operation of management systems. Thus, the main focus of this research was to contribute, in the ambit of water resources and environment, for the knowing, in mathematical and experimental terms, of water quality and of the capacity of self- purification of Pomba river, using mathematical models as supporting decision-making in the process of planning and management of water resources. It was used the mathematical models of Streeter-Phelps, modified, QUAL-UFMG and QUAL2Kw for evaluating water quality and the capacity of self-purification, both in terms of space and time, of the medium course of Pomba river. The spatial analysis covered the study of water quality along nine sections of monitoring, between the cities of Astolfo Dutra and Cataguases, completing a total distance of 42,8 km, and the time analysis comprised studies in dry and rainy periods, between the months of October of 2008 to January of 2009. In order to better represent the qualitative conditions of the aquatic ecosystems, the models were calibrated and confirmed using, respectively, 16 and 6 parameters of water quality. The study of the capacity of self-purification of Pomba river was made following the results generated by quality models, mainly in terms of dissolved oxygen (DO), biochemical oxygen demand (BOD), deoxygenation rate constant (K1) and reaeration (K2). The found results showed that one of the main sources of degradation of water quality of the medium course of the Pomba river refers to the throwing of domestic sewage in both hydrological periods studied, due to the great concentration of organic matter found. During the dry period, the water quality constituent that influenced the most in the degradation of the water of Pomba river was the BOD, presenting concentrations of order of 5 mg L-1, the greatest concentrations were found in the city of Cataguases, with 13 mg L-1. In that city the BOD concentration was above the limit established by the resolution of CONAMA 357/2005, being this water course ranked in class 4. The medium concentration of dissolved oxygen found in the dry period of the year was 5,6 mg L-1. During the rainy period it was found a improvement of water quality in terms of DO (6 mg L-1), but the excess of organic matter (7,3 mg L-1) and the increasing of the concentration of other water quality parameters, as sediments, phosphorus, nitrogen and coliforms, made decrease the satisfactory levels of water quality making it impossible to use these waters for certain activities. The qualitative situation of water sources in this period is not worse just because of the expressive flowing of Pomba river, since it occurs a process of dilution of organic matter and of constituents of the water quality. According to the resolution CONAMA 357/2005, all the studied patch is ranked in class 3. In the patch located between the cities of Astolfo Dutra and Dona Euzébia it was found, in both hydrological conditions, the least capacity of self-purification of effluents, making it necessary to take preventive actions to control the throwing in natura of domestic sewages directly on water flow. The mathematical model that adjusted better to the data of water quality of Pomba river was the QUAK-UFMG, considering both dry and rainy periods. It was verified that the use of mathematical models in the evaluation of water quality and in studies of self- depuration in rivers may constitute an important tool as support in the decision-making in the process of planning, monitoring, and management of water resources. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009-07-21 |
dc.date.accessioned.fl_str_mv |
2015-03-26T13:24:02Z |
dc.date.available.fl_str_mv |
2015-03-06 2015-03-26T13:24:02Z |
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info:eu-repo/semantics/masterThesis |
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dc.identifier.citation.fl_str_mv |
GUEDES, Hugo Alexandre Soares. Modelin of the water quality and of the self-purification capacity of Pomba River.. 2009. 149 f. Dissertação (Mestrado em Construções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produ) - Universidade Federal de Viçosa, Viçosa, 2009. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/3683 |
identifier_str_mv |
GUEDES, Hugo Alexandre Soares. Modelin of the water quality and of the self-purification capacity of Pomba River.. 2009. 149 f. Dissertação (Mestrado em Construções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produ) - Universidade Federal de Viçosa, Viçosa, 2009. |
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http://locus.ufv.br/handle/123456789/3683 |
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UFV |
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BR |
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Construções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produ |
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Universidade Federal de Viçosa |
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