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Filtros anaeróbios na remoção de algas de lagoas de estabilização

Filtros anaeróbios na remoção de algas de lagoas de estabilização

Germario Araújo

79,06 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2019
Materia
Tecnología: cuestiones generales
ISBN:
9786139667598
79,06 €
IVA incluido
Disponible
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O processo conhecido genericamente como lagoas de estabilização é um dos processos de tratamento de esgotos mais difundidos no mundo. Por tratar de processo de baixo custo de implantação e grande facilidade operacional, as lagoas de estabilização são bastante atrativas, mesmo quando comparadas com as técnicas mais modernas de tratamento. Entretanto com a crescente exigência dos órgãos ambientais de uma melhor qualidade dos efluentes das estações de tratamento, as lagoas de estabilização passam a ter seu uso limitado em função da frequente presença de sólidos suspensos em seu efluente devido as algas. Os sólidos suspensos podem provocar consequências indesejáveis no corpo receptor, como o aumento da demanda de oxigênio no mesmo ou o surgimento de problemas de cor, odor e sabor na água, em função da presença de algas. As algas são extremamente importantes dentro do sistema de tratamento, são elas que fornecem o oxigênio para as bactérias degradarem a matéria orgânica (simbiose natural), mas quando o efluente sai do sistema de tratamento as algas tornam-se um inconveniente. A remoção das algas proporciona um melhor aspecto visual e possibilita o reúso do efluente tratado.

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