Efficiency of chemical and thermo processes to hygienize sewage sludge

Authors

  • Giovanna Caputo Almeida CESUMAR
  • Jamile Corina Fanhani CESUMAR
  • Pérsio Sandir D'Oliveira CESUMAR
  • Benedito Prado Dias Filho CESUMAR

Keywords:

lodo de esgoto, patógenos, reciclagem

Abstract

This work was carried out to study efficiency of chemical and thermo processes to reduce pathogens in sewage sludge, to recycle it in agriculture. Sewage sludge was collected in dry bed of Sanepar, Maringá-PR. There were three treatments: control, chemical (liming, 25% dry weight); and thermo (we hot, in vertical autoclave, 121ºC, during 2 hours, and press of 1,05 kg/cm2, repeated a day after). Test were done to verify presence of thermotolerant and total coliform, Salmonella sp. and viable helminthes eggs. It was verified that both chemical and thermo processes were able to reduce pathogen populations, allowing agriculture use of sewage sludge.

Author Biographies

Giovanna Caputo Almeida, CESUMAR

Acadêmica do Curso de Ciências Biológicas do CESUMAR - Centro Universitário de Maringá

Jamile Corina Fanhani, CESUMAR

Acadêmica do Curso de Ciências Biológicas do CESUMAR - Centro Universitário de Maringá

Pérsio Sandir D'Oliveira, CESUMAR

Docente do Curso de Ciências Biológicas do Centro Universitário de Maringá - CESUMAR

Benedito Prado Dias Filho, CESUMAR

Docente do Curso de Farmácia da Universidade Estadual de Maringá - UEM

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Published

2007-07-23

How to Cite

Almeida, G. C., Fanhani, J. C., D'Oliveira, P. S., & Dias Filho, B. P. (2007). Efficiency of chemical and thermo processes to hygienize sewage sludge. Iniciação Científica Cesumar, 8(1), 95–99. Retrieved from https://periodicos.unicesumar.edu.br/index.php/iccesumar/article/view/129

Issue

Vol. 8 No. 1 (2006)

Section

Artigos Originais

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