Detalhes bibliográficos
Ano de defesa: |
2011 |
Autor(a) principal: |
Silva, Francisco Jadilson dos Santos
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Orientador(a): |
CATUNDA, Sebastian Yuri Cavalcanti
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Banca de defesa: |
Não Informado pela instituição |
Tipo de documento: |
Dissertação
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Tipo de acesso: |
Acesso aberto |
Idioma: |
por |
Instituição de defesa: |
Universidade Federal do Maranhão
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Programa de Pós-Graduação: |
PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA DE ELETRICIDADE/CCET
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Departamento: |
Engenharia
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País: |
BR
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Palavras-chave em Português: |
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Palavras-chave em Inglês: |
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Área do conhecimento CNPq: |
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Link de acesso: |
http://tedebc.ufma.br:8080/jspui/handle/tede/470
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Resumo: |
The measurement and utilization of the oxygen uptake rate (OUR), or respiration rate, is very important in biological wastewater treatment process. The OUR provides information about the biological activity and may indicate the presence of the toxic elements capable of corrupting the system. Due to the lack of reliable real time sensors for measurement of the respiration rate, computer codes, based on estimation techniques, have been used to develop software sensors to overcome such difficulties. In this work a software sensor, using a Kalman Filter algorithm, is developed to estimate the OUR in an aerobic reactor, in which the dissolved oxygen concentration is controlled by aerators of on-off type triggered by pulse width modulation. Simulations and experimental results performed in a bench-scale activated sludge reactor are compared. It follows from the analysis of results, that the proposed method is able to estimate the OUR reliably and in real time. |