Microbiological Quality Adequation of Effluents from Secondary Lagoons by the Application of Ozone

Autor(es)

Luci Sartori ^[1] ; Luiz A Daniel ^[2] ; Harry E Schulz ^[3]

Afiliação do(s) autor(es)

^[1] Universidad de São Paulo. Escuela de Ingeniería de São Carlos. Departamento de Hidráulica y Saneamiento - Brasil

^[2] Universidad de São Paulo. Escuela de Ingeniería de São Carlos. Departamento de Hidráulica y Saneamiento - Brasil

^[3] Universidad de São Paulo. Escuela de Ingeniería de São Carlos. Departamento de Hidráulica y Saneamiento - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Información tecnológica; v. 18, n. 6, p. 83-92, 2007-00-00.

Resumo

The disinfection of secondary effluents with ozone using Escherichia coli, coliphages and Clostridium perfringens as indicator microorganisms was evaluated. The secondary effluents of Lins Wastewater Treatment Plant and Araraquara in Brazil, were used. The results showed that values of ozone-in-water concentration of 29, 54, 82, 164 and 246 mg min /L for Lins effluent and 25, 95, 142, 147, 189, 220 and 294 mg min /L for Araraquara effluent were adequate, according to the standards of the World Health Organization for unrestricted irrigation, considering only E. coli concentration. It is concluded that the application of ozone to regulate the microbiological quality of the wastewaters is adequate. However, the efficiency of disinfection is affected by the previous treatment given to the wastes. (AU)

• Processo FAPESP: 00/08253-5 - Adequação da qualidade parasitológica de efluentes secundários de esgoto sanitário pela aplicação dos desinfetantes ozônio, permanganato de potássio e ácido peracético para fins de reúso
• Beneficiário: Luci Sartori
• Modalidade de apoio: Bolsas no Brasil - Doutorado