International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2557

Full Length Research Paper

Application of response surface methodology for electrochemical destruction of cyanide

Li-Chun Cheng1, Wei-Lung Chou2, Cheng-Ping Chang3, Yi-Ming Kuo1 and Chih-Ta Wang1*
1Department of Safety Health and Environmental Engineering, Chung Hwa University of Medical Technology, Tainan County 717, Taiwan. 2Department of Industrial Safety and Health and Institute of Occupational Safety and Hazard Prevention, HungKuang University, Sha-Lu, Taichung 433, Taiwan. 3Department of Occupational Safety and Health, Chang Jung Christian University, Taiwan.
Email: [email protected]

  •  Accepted: 11 June 2012
  •  Published: 23 November 2012

Abstract

This study investigated the influence of experimental factors on the electrochemical cyanide destruction efficiency in a flow-through reactor using response surface methodology. Central composite experimental design was used to obtain the four main operating factors, such as current density, initial cyanide concentration, chloride concentration, and electrolysis time, on the response surface of cyanide destruction efficiency. Analysis of variance (ANOVA) showed a high coefficient of determination value (R2) and insignificant lack of fit for the quadratic response surface model. The Pareto analysis gave the percentage effect of each factor on the response.

 

Key words: Response surface methodology, cyanide destruction, electrolysis.

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