Desempenho de um reator anaeróbio com leito móvel de biofilme e membrana de microfiltração no tratamento de água cinza clara

• Ano de defesa: 2016
• Autor(a) principal: Belotti Junior, Gabriel Dalberto
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado Profissional em Engenharia e Desenvolvimento Sustentável; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia e Desenvolvimento Sustentável
• Palavras-chave em Português: Water reuse; Reactors anaerobic; Membrane microfiltration; Water gray; Reatores anaeróbios; Água reuso; Águas cinzas; Água - Reuso; Filtração por membranas; Águas cinzentas (Resíduos de águas domésticas); Engenharia Sanitária; 628
• Link de acesso: http://repositorio.ufes.br/handle/10/9548

This paper presents the study of light gray water component of a portion of the wastewater through anaerobic reactor with moving bed biofilm membranes (MBBMR) followed by microfiltration membrane pilot scale. Therefore, this research aimed to study the influence of hydraulic retention time (HRT) of the reactor in the performance of the treatment light gray water. The MBBMR was composed of a reactor 20 m² filled with support media type random rings high density polypropylene, followed by a microfiltration membrane of the external type with hollow fiber, tangential flow filtration, operating with different HDT (8h and 4h). The biggest MBBMR removal efficiencies were during reactor operation with the TDH 8 am, with the average global removal of 78.2%. With TDH 4h was no reduction in overall efficiency, the average global removal of 69%. The final effluent met the necessary quality for reuse, following the recommendations in the standards of Germany and Canada at 100% of the samples for the BOD and TSS parameters, in TDH 8h. However, the effluent did not meet the ceiling established by these standards for turbidity and total coliform parameters. In relation to service the Brazilian standard with this TDH, the turbidity parameter showed 48% of the samples with the value below the set for reuse in toilets, but all samples did not meet the threshold for total coliforms. For MBBR operating at 4pm TDH for the DBO parameter all samples met the standard limit of Canada and 60% of the samples met the standards of Florida, Australia and Germany. For the SST parameter, 80% of the samples were below the value set in the standard of Canada and Germany. However, turbidity and total coliform parameters did not meet the limits of international and Brazilian standards for reuse in sanitary bowl with TDH 4h. Thus, the best results achieved with the system studied was the highest HDT for the reactor