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

Authors

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

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

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). <b>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

Issue

Vol. 37 No. 3 (2015)

Section

Chemistry

License

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