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Water, Air, and Soil Pollution

, Volume 191, Issue 1–4, pp 5–13 | Cite as

Design of Optimum Response Surface Experiments for Electro-Coagulation of Distillery Spent Wash

  • R. Krishna Prasad
  • R. Ram Kumar
  • S. N. Srivastava
Article

Abstract

Electro-coagulation (EC) of a distillery spent wash has been optimized by Box–Behnken design of surface response analysis in terms of color removal. The design was employed to derive a statistical model for the effect of parameters studied on removal of color using iron anodes. The current density (31 mA/cm2), dilution (17.5%) and time of electrolysis (4 hours) had been found to be the optimum conditions for maximum 95% color removal. The actual color removal at optimized conditions was found to be 93.5% which confirms close to the predicted response using response surface methodology.

Keywords

Box–Behnken design Electro-coagulation Molasses spentwash Iron anodes Waste water treatment 

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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • R. Krishna Prasad
    • 1
  • R. Ram Kumar
    • 1
  • S. N. Srivastava
    • 1
  1. 1.School of Chemical and BiotechnologySASTRA UniversityThanjavurIndia

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