Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/7852 |
Resumo: | The use of the coefficient of reaeration and quantification of atmospheric reaeration templates for use in process water quality and can be determined by various methods or determined experimentally using formulas that describe the behavior of flow through its hydraulic system. The Approximate Delta method is a experimental method of the simple application. Mathematical models of water quality are instruments developed to assist in problem solving, however their use depends on experimental results. This research aimed to evaluate the importance of experimental determination of kinetic parameters, surface reaeration coefficient K2, in modeling of water quality of the river Vacacaí Mirim. To calculate the coefficient of reaeration, Delta Approximate method, used in the experiments, it was shown a technique to obtain easy field data, simple calculations and experimental apparatus with a low cost. However, this method has limitations in the calculation in places with sewage dumps, as was observed in the data obtained from monitoring points 1 and 2. In these places, in urban areas, there is the discharge of untreated wastewater into the river Vacacaí Mirim modifying the values of dissolved oxygen and causing a wobble in her bow. In monitoring point 3, where there is no presence of inflow of sewage into the river, the Delta Approximate method showed very favorable and consistent results. Obtaining the coefficient of reaeration through calculations of equations proposed in the literature and by the model QUAL2E exhibited large variations in their responses, confirming the claim limitation of using them for obtaining K2, being restricted to using these equations where been developed. When comparing data reaeration coefficient between the experimental methodology by Delta Approximate method and the responses of the equations, it was found that the proposed Formentini (2010) resulted in good fits to the observed data. The information collected experimentally were used as input data in QUAL2E model for simulation of dissolved oxygen in the river Vacacaí Mirim. The QUAL2E model has proved to be an effective tool for obtaining OD in rivers. |
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Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí MirimWater quality modelling using bibliographical and experimental coefficients - application to River Vacacaí MirimCoeficiente de reaeraçãoModelagemOxigênio dissolvidoQualidade da águaCoefficient of reaerationModelingDissolved oxygenWater qualityCNPQ::ENGENHARIAS::ENGENHARIA CIVILThe use of the coefficient of reaeration and quantification of atmospheric reaeration templates for use in process water quality and can be determined by various methods or determined experimentally using formulas that describe the behavior of flow through its hydraulic system. The Approximate Delta method is a experimental method of the simple application. Mathematical models of water quality are instruments developed to assist in problem solving, however their use depends on experimental results. This research aimed to evaluate the importance of experimental determination of kinetic parameters, surface reaeration coefficient K2, in modeling of water quality of the river Vacacaí Mirim. To calculate the coefficient of reaeration, Delta Approximate method, used in the experiments, it was shown a technique to obtain easy field data, simple calculations and experimental apparatus with a low cost. However, this method has limitations in the calculation in places with sewage dumps, as was observed in the data obtained from monitoring points 1 and 2. In these places, in urban areas, there is the discharge of untreated wastewater into the river Vacacaí Mirim modifying the values of dissolved oxygen and causing a wobble in her bow. In monitoring point 3, where there is no presence of inflow of sewage into the river, the Delta Approximate method showed very favorable and consistent results. Obtaining the coefficient of reaeration through calculations of equations proposed in the literature and by the model QUAL2E exhibited large variations in their responses, confirming the claim limitation of using them for obtaining K2, being restricted to using these equations where been developed. When comparing data reaeration coefficient between the experimental methodology by Delta Approximate method and the responses of the equations, it was found that the proposed Formentini (2010) resulted in good fits to the observed data. The information collected experimentally were used as input data in QUAL2E model for simulation of dissolved oxygen in the river Vacacaí Mirim. The QUAL2E model has proved to be an effective tool for obtaining OD in rivers.Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorO uso do coeficiente de reaeração é na quantificação do processo de reaeração atmosférica para utilização em modelos de qualidade da água e pode ser determinado através de diversos métodos de determinação experimental ou através de fórmulas que descrevem o comportamento do escoamento através de seu regime hidráulico. O método Delta Aproximado é um método experimental de simples aplicação. Os modelos matemáticos de qualidade da água são instrumentos desenvolvidos para auxiliar na solução de problemas, no entanto a sua utilização depende de resultados experimentais. Esta pesquisa objetivou-se avaliar a importância da determinação experimental do parâmetro cinético, coeficiente de reaeração superficial K2, na modelagem da qualidade da água do rio Vacacaí Mirim. Para o cálculo do coeficiente de reaeração, o método Delta Aproximado, usado nos experimentos, demonstrou-se uma técnica de fácil obtenção de dados a campo, de cálculos simples e com um aparato experimental de baixo custo. Porém, esse método possui limitação no cálculo em locais com despejos de esgoto, como foi observada nos dados obtidos dos pontos de monitoramento 1 e 2. Nesses locais, em áreas urbanas, nota-se o despejo de esgoto no rio Vacacaí Mirim modificando os valores de oxigênio dissolvido e provocando uma oscilação em sua curva. No ponto de monitoramento 3, onde não há presença de aporte de esgoto no rio, o método Delta Aproximado apresentou resultados bastante favoráveis e uniformes. A obtenção do coeficiente de reaeração através dos cálculos de equações propostas na literatura e pelo próprio modelo QUAL2E, apresentou grandes variações em suas respostas, confirmando a afirmativa de limitação do uso das mesmas para obtenção do K2, sendo essas equações restringidas ao uso onde foram desenvolvidas. Na comparação de dados de coeficiente de reaeração entre a metodologia experimental através do método Delta Aproximado e as respostas das equações, verificou-se que a proposta de Formentini (2010) resultou em bons ajustes com os dados observados. As informações coletadas experimentalmente foram usadas como dados de entrada no modelo QUAL2E para simulação do oxigênio dissolvido no rio Vacacaí Mirim. O modelo QUAL2E demonstrou-se uma ferramenta eficaz para obtenção do OD em rios.Universidade Federal de Santa MariaBREngenharia CivilUFSMPrograma de Pós-Graduação em Engenharia CivilGastaldini, Maria do Carmo Caudurohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4790803A8Swarowsky, Alexandrehttp://lattes.cnpq.br/9525157123018041Carissimi, Elvishttp://lattes.cnpq.br/4642912749433316Ávila, Lauren Cortezia2014-12-102014-12-102014-01-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfÁVILA, Lauren Cortezia. WATER QUALITY MODELLING USING BIBLIOGRAPHICAL AND EXPERIMENTAL COEFFICIENTS APPLICATION TO RIVER VACACAÍ MIRIM. 2014. 99 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2014.http://repositorio.ufsm.br/handle/1/7852porinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2017-07-27T13:05:04Zoai:repositorio.ufsm.br:1/7852Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2017-07-27T13:05:04Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim Water quality modelling using bibliographical and experimental coefficients - application to River Vacacaí Mirim |
title |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim |
spellingShingle |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim Ávila, Lauren Cortezia Coeficiente de reaeração Modelagem Oxigênio dissolvido Qualidade da água Coefficient of reaeration Modeling Dissolved oxygen Water quality CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
title_short |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim |
title_full |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim |
title_fullStr |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim |
title_full_unstemmed |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim |
title_sort |
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim |
author |
Ávila, Lauren Cortezia |
author_facet |
Ávila, Lauren Cortezia |
author_role |
author |
dc.contributor.none.fl_str_mv |
Gastaldini, Maria do Carmo Cauduro http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4790803A8 Swarowsky, Alexandre http://lattes.cnpq.br/9525157123018041 Carissimi, Elvis http://lattes.cnpq.br/4642912749433316 |
dc.contributor.author.fl_str_mv |
Ávila, Lauren Cortezia |
dc.subject.por.fl_str_mv |
Coeficiente de reaeração Modelagem Oxigênio dissolvido Qualidade da água Coefficient of reaeration Modeling Dissolved oxygen Water quality CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
topic |
Coeficiente de reaeração Modelagem Oxigênio dissolvido Qualidade da água Coefficient of reaeration Modeling Dissolved oxygen Water quality CNPQ::ENGENHARIAS::ENGENHARIA CIVIL |
description |
The use of the coefficient of reaeration and quantification of atmospheric reaeration templates for use in process water quality and can be determined by various methods or determined experimentally using formulas that describe the behavior of flow through its hydraulic system. The Approximate Delta method is a experimental method of the simple application. Mathematical models of water quality are instruments developed to assist in problem solving, however their use depends on experimental results. This research aimed to evaluate the importance of experimental determination of kinetic parameters, surface reaeration coefficient K2, in modeling of water quality of the river Vacacaí Mirim. To calculate the coefficient of reaeration, Delta Approximate method, used in the experiments, it was shown a technique to obtain easy field data, simple calculations and experimental apparatus with a low cost. However, this method has limitations in the calculation in places with sewage dumps, as was observed in the data obtained from monitoring points 1 and 2. In these places, in urban areas, there is the discharge of untreated wastewater into the river Vacacaí Mirim modifying the values of dissolved oxygen and causing a wobble in her bow. In monitoring point 3, where there is no presence of inflow of sewage into the river, the Delta Approximate method showed very favorable and consistent results. Obtaining the coefficient of reaeration through calculations of equations proposed in the literature and by the model QUAL2E exhibited large variations in their responses, confirming the claim limitation of using them for obtaining K2, being restricted to using these equations where been developed. When comparing data reaeration coefficient between the experimental methodology by Delta Approximate method and the responses of the equations, it was found that the proposed Formentini (2010) resulted in good fits to the observed data. The information collected experimentally were used as input data in QUAL2E model for simulation of dissolved oxygen in the river Vacacaí Mirim. The QUAL2E model has proved to be an effective tool for obtaining OD in rivers. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-10 2014-12-10 2014-01-17 |
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.uri.fl_str_mv |
ÁVILA, Lauren Cortezia. WATER QUALITY MODELLING USING BIBLIOGRAPHICAL AND EXPERIMENTAL COEFFICIENTS APPLICATION TO RIVER VACACAÍ MIRIM. 2014. 99 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/7852 |
identifier_str_mv |
ÁVILA, Lauren Cortezia. WATER QUALITY MODELLING USING BIBLIOGRAPHICAL AND EXPERIMENTAL COEFFICIENTS APPLICATION TO RIVER VACACAÍ MIRIM. 2014. 99 f. Dissertação (Mestrado em Engenharia Civil) - Universidade Federal de Santa Maria, Santa Maria, 2014. |
url |
http://repositorio.ufsm.br/handle/1/7852 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Engenharia Civil UFSM Programa de Pós-Graduação em Engenharia Civil |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Engenharia Civil UFSM Programa de Pós-Graduação em Engenharia Civil |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
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