Concentrations of nitrate, nitrite, total kjeldahl nitrogen and potassium in effluents from poultry and swine abattoir

Authors

  • Ludmilla Santana Soares e Barros Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Medicina Veterinária Preventiva e Reprodução Animal, Jaboticabal, SP
  • Luiz Augusto do Amaral Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Medicina Veterinária Preventiva e Reprodução Animal, Jaboticabal, SP
  • Cintia Sobue Lorenzon Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Medicina Veterinária Preventiva e Reprodução Animal, Jaboticabal, SP
  • Jorge de Lucas Júnior Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Engenharia Rural, Jaboticabal, SP
  • Joaquim Gonçalves Machado Neto Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Fitossanidade, Jaboticabal, SP

Keywords:

abattoirs, residual water, macronutrients, nitrate, potassium

Abstract

Current research aimed to collect information about the risk of wastewaters from swine and poultry abattoirs on the quality of rivers in of São Paulo state, Brazil, in periods of dry and rainy seasons in the region. Water collected sites: supply, different sites in the slaughtering flowchart, affluents and effluents of treatment systems and three sites of the receiving water body (emission locus, 100 m upstream and 100 m downstream) were analyzed. Measurements included nitrate, nitrite, total kjeldahl nitrogen (TKN) and potassium. Results showed that supply waters of the abattoirs complied with Rule 518 of the Health Ministry, (BRAZIL, 2004) in nitrate, nitrite and TKN. According to CONAMA (2005) and Decree 8486 (São Paulo, 1976), waters of the three sites in the receiving water body in the two types of abattoirs belonged to Classes II and III with regard to nitrate and nitrite concentrations. Such results were not observed on TKN concentrations.

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Published

2013-11-26

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Concentrations of nitrate, nitrite, total kjeldahl nitrogen and potassium in effluents from poultry and swine abattoir. (2013). Bulletin of Animal Husbandry, 63(2), 63-70. http://35.198.24.243/index.php/bia/article/view/1271

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