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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Behavior of Metals, Pathogen Parasites, and Indicator Bacteria in Sewage Effluents During Biological Treatment by Activated Sludge

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Autor(es):
Tonani, K. A. A. [1] ; Juliao, F. C. [1] ; Trevilato, T. M. B. [2] ; Takayanagui, A. M. M. [3] ; Bocio, Ana [4] ; Domingo, Jose L. [4] ; Segura-Munoz, Susana I. [1]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Lab Ecotoxicol & Environm Parasitol, Maternal Infant Nursing & Publ Hlth Dept, Ribeirao Preto Coll Nursing, BR-14040902 Sao Paulo - Brazil
[2] Univ Sao Paulo, Pediat Lab, Div Met, Univ Hosp Sch Med, BR-14040902 Sao Paulo - Brazil
[3] Univ Sao Paulo, Environm Hlth Lab, Maternal Infant Nursing & Publ Hlth Dept, Ribeirao Preto Coll Nursing, BR-14040902 Sao Paulo - Brazil
[4] Univ Rovira & Virgili, Lab Toxicol & Environm Hlth, Sch Med, IISPV, E-43201 Reus, Catalonia - Spain
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: BIOLOGICAL TRACE ELEMENT RESEARCH; v. 143, n. 2, p. 1193-1201, NOV 2011.
Citações Web of Science: 11
Resumo

The purpose of this study was to evaluate the behavior of metals, pathogen parasites, and indicator bacteria in sewage effluents during biological treatment by activated sludge in a wastewater treatment plant in Ribeiro Preto (WTP-RP), Sao Paulo, Brazil. The evaluation was done during a period of 1 year. Results showed that metal concentrations in treated effluents decreased, reaching concentrations according to those established by national regulations. The activated sludge process at the WTP-RP promoted a partial removal of parasites considered as possible indicators according to the WHO guidelines. Reduction factors varied between 18.2% and 100% for agents such as Endolimax nana, Entamoeba coli, Entamoeba hystolitica, Giardia sp., Ancylostoma sp., Ascaris sp., Fasciola hepatica, and Strongyloides stercoralis. A removal was also observed in total and fecal coliforms quantification. The present study represents an initial evaluation of the chemical and microbiological removal capacity of the WTP-RP. The results should be of interest for the authorities responsible for the environmental health at municipal, regional, national, and international levels. (AU)

Processo FAPESP: 05/58036-4 - Identificação e quantificação de metais pesados, parasitas e bactérias no esgoto bruto e tratado da Estação de Tratamento de Esgoto de Ribeirão Preto, SP
Beneficiário:Karina Aparecida de Abreu Tonani
Linha de fomento: Bolsas no Brasil - Mestrado