The study of removing the organic from wastewater by periodically reversing electrocoagulation

Zhao Nan Sun, Yong Gang Huang, Chang E. Dong, Xiao Min Hu*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Electro-coagulation (EC) is an effective technique for decolorization and removing organics. The purpose of this study was to investigate the removal of chemical oxygen demand (COD) and color from the simulated pharmaceutical wastewater by the application of the EC technique with iron and aluminum electrodes, and periodically alternating power supply. Besides, the effects of various operational parameters including electrolysis time, electrolysis voltage, alternating period, distance between the electrode plates, and speed of stirring were also studied. Under the optimal conditions, the removal rates of color and COD could be up to 99.36 % and 92.54 %, respectively. As the results shown that the removal rates of color and COD have the same trend, and the different value is about 5%. The results show that using the method of periodically reversing electro-coagulation (PREC) can remove the ionic organic from the wastewater effectively.

Original languageEnglish (US)
Title of host publication2012 World Automation Congress, WAC 2012
StatePublished - Dec 14 2012
Event2012 World Automation Congress, WAC 2012 - Puerto Vallarta, Mexico
Duration: Jun 24 2012Jun 28 2012

Other

Other2012 World Automation Congress, WAC 2012
CountryMexico
CityPuerto Vallarta
Period6/24/126/28/12

Keywords

  • COD
  • decolorization
  • Electrocoagulation
  • periodically alternate
  • pharmaceutical wastewater

ASJC Scopus subject areas

  • Control and Systems Engineering

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  • Cite this

    Sun, Z. N., Huang, Y. G., Dong, C. E., & Hu, X. M. (2012). The study of removing the organic from wastewater by periodically reversing electrocoagulation. In 2012 World Automation Congress, WAC 2012 [6321369]