Efficiency and operating cost of electrocoagulation system applied to the treatment of dairy industry wastewater

Authors

  • Henrique Cesar Lopes Geraldino Universidade Estadual de Maringá Author
  • Julliana Izabelle Simionato Universidade Tecnologica Federal do Paraná Author
  • Thábata Karoliny Formicoli de Souza Freitas Universidade Estadual de Maringá Author
  • Juliana Carla Garcia Universidade Estadual de Maringá Author
  • Orlando de Carvalho Júnior Universidade Tecnologica Federal do Paraná Author
  • Caryna Januario Correr Universidade Estadual de Londrina Author

DOI:

https://doi.org/10.4025/actascitechnol.v37i3.26452

Keywords:

conductivity, COD, electrolysis, iron electrode, oxidation.

Abstract

The objective of this study was to apply the technique of electrocoagulation (EC) in the treatment of dairy industry wastewater, using a system of bench. It was used a source of 10 amps and an electrode of iron containing six plates of 14x6 cm. Were made variation of pH (4.5 to 6), intensity of electric current (1 to 2A) and time of electrolysis (30 to 60 min.). The efficiency of the treatment was confirmed by analysis of turbidity, color and COD. The reduction of turbidity was greater than 98%, reaching a record 99.98%. The largest reduction in color was 94.90% and 11 of the 27 tests the efficiency was greater than 90%. The greatest reduction of COD was 96.36%. The treatment proved to be more efficient at pH 4.5, time 60 min. and current 1.5A. The estimated cost of operation was US$ 1.04 m3 which demonstrates the viability of treatment of dairy industry wastewater.

 

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Author Biographies

  • Henrique Cesar Lopes Geraldino, Universidade Estadual de Maringá
    Programa de pós-graduação em Quí­mica UEM, Quí­mica analí­tica ambiental
  • Julliana Izabelle Simionato, Universidade Tecnologica Federal do Paraná
    Quí­mica - Engenharia Ambiental
  • Thábata Karoliny Formicoli de Souza Freitas, Universidade Estadual de Maringá
    Pós graduação em Quí­mica - Análise de Traços e Quí­mica Ambiental
  • Juliana Carla Garcia, Universidade Estadual de Maringá
    Quí­mica, graduação e pós-graduação - Análise de Traços e Quí­mica Ambiental
  • Orlando de Carvalho Júnior, Universidade Tecnologica Federal do Paraná
    Curso de graduação em Eng Ambiental / Tratamento de águas residuárias
  • Caryna Januario Correr, Universidade Estadual de Londrina
    Quí­mica Analí­tica e Quí­mica Ambiental

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Published

2015-07-01

Issue

Vol. 37 No. 3 (2015)

Section

Chemistry

License

DECLARATION OF ORIGINALITY AND COPYRIGHTS

I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. 

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

Read this link for further information on how to use CC BY 4.0 properly.

 

How to Cite

Geraldino, H. C. L., Simionato, J. I., Freitas, T. K. F. de S., Garcia, J. C., Carvalho Júnior, O. de, & Correr, C. J. (2015). Efficiency and operating cost of electrocoagulation system applied to the treatment of dairy industry wastewater. Acta Scientiarum. Technology, 37(3), 401-408. https://doi.org/10.4025/actascitechnol.v37i3.26452

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