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Degradation of biopolymeric pigments in distillery spentwash by electrocoagulation using copper anodes: statistical and canonical analysis

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Abstract

The electrocoagulation studies of distillery spentwash using copper anodes were utilized to demonstrate the usefulness of Box–Behnken experimental design of response surface analysis to derive a statistical model and the optimum parameters for color removal. The current intensity (1.5 A), dilution (10%) and time of electrolysis (5 h) had been found to be the optimum conditions for maximum 77.11% color removal. The actual color removal at optimized conditions was found to be 78.26%, which is to the predicted response using response surface methodology. The energy consumption and current efficiency were determined from reduction in chemical oxygen demand.

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Authors and Affiliations

  1. School of Chemical and Biotechnology, SASTRA University, Thanjavur, 613 402, India

    R. Krishna Prasad

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  1. R. Krishna Prasad
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Correspondence to R. Krishna Prasad.

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Krishna Prasad, R. Degradation of biopolymeric pigments in distillery spentwash by electrocoagulation using copper anodes: statistical and canonical analysis. Environ Chem Lett 8, 149–155 (2010). https://doi.org/10.1007/s10311-009-0202-5

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  • DOI: https://doi.org/10.1007/s10311-009-0202-5

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