Avaliação do emprego da radiação ultravioleta na desinfecção de esgoto sanitário

Jeanette Beber Souza; Carlos Magno de S Vidal; Grasiele Soares Cavallini; Larissa Quartaroli; Lucas Ricardo C Marcon

doi:10.5433/1679-0375.2012v33n2p117

Evaluation of the use of ultraviolet radiation to disinfect sewage

Authors

Jeanette Beber Souza Universidade Estadual do Centro-Oeste - UNICENTRO
Carlos Magno de S Vidal Universidade Estadual do Centro-Oeste - UNICENTRO
Grasiele Soares Cavallini Universidade Estadual do Centro-Oeste - UNICENTRO
Larissa Quartaroli Universidade Estadual do Centro-Oeste - UNICENTRO
Lucas Ricardo C Marcon Escola de Engenharia de São Carlos - USP

DOI:

https://doi.org/10.5433/1679-0375.2012v33n2p117

Keywords:

Sewage treatment, Disinfection, UV radiation, E.coli, Total Coliforms

Abstract

The current research aimed to evaluate the potential to use the ultraviolet radiation (UV) as disinfectant agent of sewage coming from biological treatment having concentration of total suspended solids that varies from 30 to 75 mg/L. The disinfection tests were performed in a reactor in scale of laboratory work surface and the process effectiveness was evaluated applying total coliforms indicator microorganisms (TC) and Escherichia coli. Although the low quality of the effluent, as far as the presence of solids and turbidity is concerned has limited the process efficiency, the results of inactivation of TC and E.coli varied of values smaller than 1 log to 5 log of inactivation with dosages of UV applied radiation that varied from 10,54 to 317,1 mWs.cm^-2, allowing to conclude about the feasibility to use this technology to disinfect the secondary effluents.

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Author Biographies

Jeanette Beber Souza, Universidade Estadual do Centro-Oeste - UNICENTRO

Engenheira Civil pela UFOP. Doutora em Hidráulica e Saneamento pela Escola de Engenharia de São Carlos, Universidade de São Paulo EESC/USP. Professora do Departamento de Engenharia Ambiental da Universidade Estadual do Centro-Oeste (DENAM/UNICENTRO, PR).

Carlos Magno de S Vidal, Universidade Estadual do Centro-Oeste - UNICENTRO

Biólogo pela UFScar. Doutor em Hidráulica e Saneamento pela EESC/USP. Professor do Departamento de Engenharia Ambiental da Universidade Estadual do Centro-Oeste (DENAM/UNICENTRO, PR)

Grasiele Soares Cavallini, Universidade Estadual do Centro-Oeste - UNICENTRO

Técnica do Laboratório de Saneamento Ambiental e Qualidade da Água do Departamento de Engenharia Ambiental da Unicentro.Graduada em Química e Mestre em Química Aplicada pela UEPG.

Larissa Quartaroli, Universidade Estadual do Centro-Oeste - UNICENTRO

Engenheira Ambiental pela UNICENTRO. Ex-aluna do Programa de Iniciação Científica da UNICENTRO (bolsista PAIC, Fundação Araucária,). Mestranda em Ciências Florestais pela UNICENTRO.

Lucas Ricardo C Marcon, Escola de Engenharia de São Carlos - USP

Engenheiro Ambiental pela UNICENTRO, PR. Ex- aluno do Programa de Iniciação Científica da UNICENTRO. Mestre e Doutorando em Hidráulica e Saneamento pela EESC/USP.

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Published

2012-11-30

How to Cite

Souza, J. B., Vidal, C. M. de S., Cavallini, G. S., Quartaroli, L., & Marcon, L. R. C. (2012). Evaluation of the use of ultraviolet radiation to disinfect sewage. Semina: Ciências Exatas E Tecnológicas, 33(2), 117–126. https://doi.org/10.5433/1679-0375.2012v33n2p117

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Issue

Vol. 33 No. 2 (2012)

Section

Original Article

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