Efficiency analysis of the australian wastewater treatment system in a pig slaughterhouse
Keywords:environmental monitoring, microbiological parameters, physicochemical parameters, treatment ponds.
Pig farming is a significant economic activity in the food industry and the meat trade. However, pig slaughterhouses release their waste through effluents, which may spread pathogenic microorganisms and degrade the environment, particularly in bodies of water. The aim of the present study was to assess the efficiency of the Australian wastewater treatment system and the quality of the Effluent Treatment Station (ETS) of a pig slaughterhouse, which flows into the Laranja Azeda stream in the city of Dourados (State of Mato Grosso do Sul, Brazil). Effluentsampling was carried out in the ETS using treatment ponds (Australian system), from the input to the output, over a period of one year. Physicochemical and biological parameters were assessed to measure the effluentquality. The results showed a reduction in organic matter and microorganisms. The concentration of dissolved oxygen, pH, effluent temperature, redox potential, as well as the amount of coliforms, exhibited a significant reduction (p<0.005). The waste management brought by the ETS promoted the removal of pollutants from the effluent. However, these procedures were not enough to satisfy Brazilian and international parameters proposed by the WHO, which regulate the dumping of waste into water bodies.
How to Cite
Copyright (c) 2017 Kelly Mari Pires de Oliveira, Péricles David dos Santos Júlio, Max Seiji Tsunada, Renata Pires de Araújo, Yzel Rondon Súarez, Alexéia Barufatti Grisolia
This work is licensed under a Creative Commons Attribution 4.0 International License.