Avaliação (em escala laboratorial) da aplicação do processo eletrolítico em efluente de lagoa de estabilização de esgoto urbano

Química Nova

Elis Marina Turini Claro²  Marcelo Henrique Otenio²  Edério Dino Bidóia¹  Natália Maria Maciel Guerra Silva¹  Valdecir Dos Santos¹ 

[1] ,Embrapa Gado de LeiteJuiz de Fora MG

关键词: electrolysis;    treatment of effluent;    disinfection;   

DOI  :  10.1590/S0100-40422010000300012

来源: SciELO

【 摘 要 】

Physico-chemical and microbiological parameters were evaluated before and after applying an electrolytic process to effluents of a stabilization lagoon, in the presence or absence of "salt". Chlorine generation and bactericidal properties of the treatments were studied following two experiments. Effluent pH increased with electrolysis time. In the absence of "salt", 20 min electrolysis resulted in a COD (Chemical Oxygen Demand) reduction of 44%, along with ca. 99.9% (3 log10 cfu/mL) reduction in total coliforms, heterotrophic bacteria and Escherichia coli. These results indicated that the electrolytic process is a promising complementary technology to improve effluent quality for stabilization lagoons.

【 授权许可】

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