Autor(es): Claro, Elis Marina Turini ; Otenio, Marcelo Henrique ; Bidoia, Ederio Dino [UNESP] ; Silva, Natália Maria Maciel Guerra ; Santos, Valdecir dos
Data: 2013
Identificador Persistente: http://hdl.handle.net/11449/20095
Origem: Oasisbr
Assunto(s): electrolysis; treatment of effluent; disinfection; electrolysis; electrolysis; treatment of effluent; treatment of effluent; disinfection; disinfection
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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.
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Gado de Leite
Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências de Rio Claro
Universidade Estadual do Norte do Paraná (UENP) Departamento de Patologia Geral
Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências de Rio Claro
