Avaliação da qualidade do esgoto tratado e seus impactos no curso hídrico: o caso da ETE Norte do município de Presidente Venceslau - São Paulo - Brasil
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Data
2019-10-01
Autores
Bertocco, Juliana Corrêa
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
Os serviços prestados por empresas de saneamento básico, como o tratamento de esgoto, são necessários para o desenvolvimento de uma comunidade saudável e um meio ambiente em equilíbrio. O presente estudo avaliou a qualidade do esgoto tratado na Estação de Tratamento de Esgoto (ETE) da Bacia Norte do município de Presidente Venceslau, estado de São Paulo e seus impactos no córrego do Veado. Assim, neste estudo fez-se uma análise da eficiência da ETE em questão, bem como do esgoto bruto e tratado e da água do córrego à montante e à jusante da ETE. Além disso, avaliou-se a autodepuração num trecho do córrego analisado após o lançamento do esgoto tratado até o rio principal. Para a determinação da capacidade de autodepuração do trecho analisado do córrego onde ocorre o lançamento do esgoto tratado pela ETE Norte de Presidente Venceslau, foi adotada a modelagem matemática de Streeter e Phelps. O presente trabalho constatou que a tecnologia da ETE Norte de Presidente Venceslau é de boa qualidade, apresentando uma eficiência de remoção de DBO de 84% e um perfil de autodepuração com oxigênio dissolvido com 7 mg/l à 1,2 km da ETE.
Services provided by sanitation companies, such as sewage treatment, are necessary for the development of a healthy community and a balanced environment. This study evaluated the quality of sewage treated at the North Basin Sewage Treatment Station in Presidente Venceslau municipality, state of São Paulo and its impacts on the Veado stream. Thus, in this study an analysis was made of the efficiency of the Sewage Treatment Station in question, as well as of raw and treated sewage and stream water upstream and downstream of the Sewage Treatment Station. In addition, self-purification was evaluated. To determine the self-purification capacity of the analyzed section of the stream where the sewage treated by Presidente Venceslau North Sewage Treatment Station occurs, the mathematical modeling of Streeter and Phelps was adopted. The present study obtained that Presidente Venceslau North Sewage Treatment Station technology is of good quality, with an 84% BOD removal efficiency and a 7 mg/l dissolved oxygen self-purification profile at 1.2 km from the Sewage Treatment Station.
Services provided by sanitation companies, such as sewage treatment, are necessary for the development of a healthy community and a balanced environment. This study evaluated the quality of sewage treated at the North Basin Sewage Treatment Station in Presidente Venceslau municipality, state of São Paulo and its impacts on the Veado stream. Thus, in this study an analysis was made of the efficiency of the Sewage Treatment Station in question, as well as of raw and treated sewage and stream water upstream and downstream of the Sewage Treatment Station. In addition, self-purification was evaluated. To determine the self-purification capacity of the analyzed section of the stream where the sewage treated by Presidente Venceslau North Sewage Treatment Station occurs, the mathematical modeling of Streeter and Phelps was adopted. The present study obtained that Presidente Venceslau North Sewage Treatment Station technology is of good quality, with an 84% BOD removal efficiency and a 7 mg/l dissolved oxygen self-purification profile at 1.2 km from the Sewage Treatment Station.
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Palavras-chave
Esgoto doméstico, Córrego do Veado, Autodepuração, Estação de tratamento de esgoto, Domestic sewage, Veado stream, Self-purification, Sewage treatment station