Disinfection by peracetic acid for pos-treatment of wastewater of cattle slaughterhouse for reuse

Authors

  • Grasiele Soares Cavallini UFT
  • Wesley Pereira Silva UFT
  • Mayara Ferreira Gonzaga UFT

DOI:

https://doi.org/10.20873/uft.2359-3652.2017v4n4p41

Abstract

Bovine farming is one of the main productive activities of Brazilian agribusiness, placing the country in the first place in beef exports in the world. The large number of slaughter of animals implies in the generation of high volume of liquid effluent, being estimated a consumption of 2500L of water per slaughtered animal. This effluent, in addition to being rich in organic matter, also presents pathogenic microorganisms from the lavas of the viscera and feces of the animals. The necessary inactivation of these microorganisms does not occur through secondary treatment, such as stabilization ponds, the most used treatment for this type of effluent, restricting the possibilities of reuse of this effluent. For this reason, this work investigated a non-chlorinated disinfectant, peracetic acid (PAA) 15%, which allows, in addition to disinfection, oxygenation of the effluent. The proposed tertiary treatment had the objective of improving the quality of the final effluent for its possible reuse. The concentration of 5mg/L APA at a contact time of 10 minutes was sufficient for the microbiological suitability required by the EPA Reuse Manual for restrictive agricultural reuse. However, the dosage of 20mg/L APA, in addition to greater disinfection, does not increase BOD of the effluent.

Keywords: Effluent reuse, pasture irrigation, peracetic acid.

References

APHA / AWWA / WEF. Standard Methods of the Examination of Water and Wastewater. 20th ed. APHA (American Public Health Association) CD-ROM. USA, 1998.

CLEMENTINO, I. J.; PIMENTA, C. L. R. M.; FERNANDES, L. G.; BEZERRA, C. S.; ALVES, C. J.; DIAS, R. A.; AMAKU, M.; FERREIRA, F.; TELLES, E. O.; GONÇALVES, V. S. P.; FERREIRA NETO, J. S.; AZEVEDO, A. S. Caracterização da pecuária bovina no Estado da Paraíba, Nordeste do Brasil. Semina: Ciências Agrárias, Londrina, v. 36, n. 1, p. 557-570, jan./fev. 2015.

CNPC (Conselho Nacional de Pecuária de Corte). Pecuária traz possibilidades de um futuro melhor. Publicado em 23/03/2015. Disponível em: http://www.cnpc.org.br/news1.php?ID=8178. Acessado em 12 de abril de 2015.

CONAMA (Conselho Nacional de Meio Ambiente) Resolução n° 357 de 17 de março de 2005. Dispõe sobre a classificação dos corpos de água e diretrizes ambientais para o seu enquadramento, bem como estabelece as condições e padrões de lançamento de efluentes, e dá outras providências. Disponível em: <http://www.mma.gov.br/port/conama/res/res05/res35705.pdf>. Acessado em: 23 jun. 2010.

DANIEL, L. A.; BRANDÃO, C. C. S.; GUIMARÃES, J. R.; LIBÂNIO, M.; DE LUCA, S. J. Métodos Alternativos de Desinfecção da Água: Processos de Desinfecção e Desinfetantes Alternativos na Produção de Água Potável. 1° Edição. São Paulo: RiMa Artes e Textos, 2001. 139p.

EPA (United States Environment Protection Agency). Manual para reúso de água. EPA/ 600/R – 12/618, 2012.

HESPANHOL, I. Potencial de Reuso de Água no Brasil Agricultura, Indústria, Municípios, Recarga de Aquíferos. RBRH – Revista Brasileira de Recursos Hídricos, v.7, p.75-95, 2002.

JORDÃO, C. P.; RIBEIRO, P. R. da S; MATOS, A. T. de; FERNANDES, R. B. A. Aquatic contamination of the Turvo Limpo river basin at the Minas Gerais state, Brazil. Journal of the Brazilian Chemical Society, v. 18, n. 1, p.116 - 125, 2007.

KITIS, M. Disinfection of wastewater with peracetic acid: a review. Environment International, v. 30, p. 47-55, 2004.

Published

2017-10-03

How to Cite

Cavallini, G. S., Silva, W. P., & Gonzaga, M. F. (2017). Disinfection by peracetic acid for pos-treatment of wastewater of cattle slaughterhouse for reuse. DESAFIOS - Revista Interdisciplinar Da Universidade Federal Do Tocantins, 4(4), 41–50. https://doi.org/10.20873/uft.2359-3652.2017v4n4p41

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Section

Artigos