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Electro-oxycoagulation Efficiency for the Treatment of Domestic Effluents

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Abstract

Although environment protection efforts worldwide, the chemistry and biological contamination of waters represents an important challenge to be overcome, especially regarding its contamination by domestic wastewater effluents. In this context, this research presented an analysis by using an innovative wastewater treatment system for domestic effluents based on the electro-oxycoagulation approach implanted in wastewater treatment station located at Palma Sola, Santa Catarina, Brazil. We evaluated samples from domestic effluent (before and after treatment), fountain water, and river water collected from the municipality water system, as well as investigated the residual compound yielded by wastewater treatment. In these samples, we performed physicochemical analysis, investigation of viable helminth eggs, and toxicity and microbiological measurements before and after the treatment. Further, the levels of contaminant metals by X-ray fluorescence-based technique were analyzed. Results show an improvement in the quality of treated water, as demonstrated by microbiological, physicochemical, toxicity, and metal analysis of effluent after treatment. After treatment, river water and fountain water levels of metals in accordance with the maximum limits allowed by Brazilian regulatory agencies. Analysis of residual compound indicated that the workers that handle the residue were not contaminated with the identified metals. Thus, the electro-oxycoagulation-based method demonstrated high efficiency for the treatment of domestic effluents and further prevents contamination of the rivers by the released effluent without treatment.

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Acknowledgments

The authors are grateful to Cleomar José Mantelli, Mayor of Palma Sola, Santa Catarina, Douglas Fernando Ribeiro, Director of Environment and Civil Defense, and Waldir Rossetti, System Operator, for their excellent technical assistance and allow our work in the Human Waste Station Treatment in Palma Sola, Santa Catarina, Brazil.

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Authors and Affiliations

  1. Department of Health Sciences, State University of Western Paraná, Francisco Beltrao, Paraná, Brazil

    Larissa Salla, Gisele Arruda, Ana Clara Daros Massarollo, Carolina Panis, Ketlyn Lucyani Olenka Rizzotto & Franciele Aní Caovilla Follador

  2. Pathology Laboratory, State University of North Paraná, Londrina, Paraná, Brazil

    Adriano Martin Felis Aranome

  3. Laboratory of Research and Innovation in Healthy, Federal Institute of Paraná, Londrina, Paraná, Brazil

    Marcelo Estevam

  4. Laboratory of Applied Nuclear Physics, State University of Londrina, Londrina, Paraná, Brazil

    Fábio Luiz Melquiades

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  1. Larissa Salla
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  2. Gisele Arruda
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All authors contributed for the conception and study delimitation. Preparation of the manuscript, collection, and data analysis were performed by Gisele Arruda, Ketlyn Lucyani Olenka, Carolina Panis, Adriano Martin Felis Aranome, Marcelo Estevam, Fábio Luiz Melquiades, Ana Clara Daros Massarollo, Larissa Salla, and Franciele Aní Caovilla Follador. All authors read and approved the final manuscript version.

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Salla, L., Arruda, G., Massarollo, A.C.D. et al. Electro-oxycoagulation Efficiency for the Treatment of Domestic Effluents. Water Air Soil Pollut 231, 462 (2020). https://doi.org/10.1007/s11270-020-04831-4

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