Coagulation and oxidation in the treatment of swine wastewater

Authors

Adrian David Vélez Zambrano Escuela Superior Politécnica Agropecuaria de Manabí “Manuel Félix López” ESPAM MFL. Carrera de Ingeniería Ambiental. Ecuador. https://orcid.org/0009-0001-1103-4789
Jorge Alessandro Zambrano Rosados Escuela Superior Politécnica Agropecuaria de Manabí “Manuel Félix López” ESPAM MFL. Carrera de Ingeniería Ambiental. Ecuador. https://orcid.org/0009-0006-3490-4093
Carlos Banchón Escuela Superior Politécnica Agropecuaria de Manabí “Manuel Félix López” ESPAM MFL. Carrera de Ingeniería Ambiental. Ecuador. https://orcid.org/0000-0002-0388-1988

DOI:

https://doi.org/10.33936/revbasdelaciencia.v9i3.7040

Keywords:

Ozone, Polyacrilamide, Wastewater, Aluminium polychloride, Swine wastes

Abstract

The present study addresses the management of waste generated by intensive pig farming, focusing on sustainable solutions for the treatment of swine wastewater through physico-chemical processes. The results demonstrated that the coagulation-flocculation process, using coagulants such as polyaluminum chloride (PAC) and flocculants like PAM, is highly effective in reducing wastewater turbidity, achieving a 100% removal with optimal concentrations. However, its effect on electrical conductivity (EC) and total solids (TS) was limited. Regarding advanced oxidation methods, the use of sodium hypochlorite and ozone was evaluated for their purification capacity. Ozone showed greater efficiency and stability in reducing EC, turbidity, and TS, achieving a 55.3% decrease in EC and total turbidity elimination in just four minutes of treatment. These findings highlight the potential of ozone as a more effective and faster option compared to sodium hypochlorite, which, while also effective, exhibited more variability in the parameters evaluated. In conclusion, the combination of coagulation-flocculation processes and advanced oxidation, particularly with ozone, offers a promising strategy to mitigate environmental contamination associated with pig production, improving wastewater quality and minimizing risks to human health and the environment.

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References

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