Medição da taxa de consumo de oxigênio usando o modulador Sigma Delta no domínio biológico em Sistemas de Lodo Ativado
The activated sludge system is a wastewater treatment method, capable of removing water pollutants using aerobic bacteria metabolism. The oxygen uptake rate (OUR) is an important parameter to the evaluation and monitoring of the activated sludge system, since it allows evaluating the biodegradati...
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| Formato: | Dissertação |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/48349 |
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| Resumo: | The activated sludge system is a wastewater treatment method, capable of removing
water pollutants using aerobic bacteria metabolism. The oxygen uptake rate (OUR) is
an important parameter to the evaluation and monitoring of the activated sludge system,
since it allows evaluating the biodegradation of polluting organic matter. In this work, we
propose a new architecture to measure OUR based on the architecture of the first order
sigma delta modulator. In the proposed architecture, the operational functions of the
sigma delta modulator will be performed by biological processes and electronic circuits.
The proposed system has some advantages over existing OUR measurement methods.
When compared to the classical method, it improves the dynamic response, decreases and
fixes the sampling time; when compared to the PWM method, it introduces the benefits of
noise shaping and oversampling.The performance of the proposed model is demonstrated
through simulations. |
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