Estudo de tratabilidade de efluentes de industria de catalisadores quimicos por lodos ativados por batelada (LAB) : Degussa, Americana, SP / Treatment study of effluents from chemical catalyst industry by activated sludge using sequencing batch reactor: Degussa, Americana, SP, Brrazil

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The present work had as main objective the investigation of the utilization potential of activated sludge sequencing batch reactors on the combined treatment of several kinds of wastewaters originated in the chemical catalyst industry Degussa, located in Americana - SP, including the domestic sewage. Workbench reactors were used and two sludge ages were studied, simulating the conventional and the prolonged aerations. Four possible sceneries, or four different effluent compound samples, possible of being full-scale introduced, were also investigated. The results showed that the system of prolonged aeration was preferable in alI the studied situations, and that three of the sceneries were suitable for the biological treatment by activated sludge using sequencing batch reactors, once they achieved efficiencies of reduction in the COD values greater than 80%. In the treatment inc1uding the total reunion of the industry effluents, this efficiency was 85,7 and 92,1%, to the sludge age of 7 and 20 days, respectively, indicating that the use of activated sludge sequencing batch biological reactors is a feasible alternative for Degussa

ASSUNTO(S)

sewage purification aguas residuais - purificação - processo de lodo ativado water purification activated sludge process residuos industriais processo com reator por batelada - purificação - lodo aguas residuais - purificação - tratamento biologico sequencing batch reactor process sewage purification sewage biological treatment industrial wastewater

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