Journal
ELECTROCHIMICA ACTA
Volume 53, Issue 5, Pages 2289-2295Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2007.09.044
Keywords
current steps electrolysis; theoretical model; boron-doped diamond electrodes; electrochemical oxidation; wastewater treatment
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In this paper, a theoretical model is presented for organic pollutants mineralization at high current efficiency (close to 100%) and low energy Consumption on boron-doped diamond electrodes. The model is formulated for a Perfect mixed electrochemical reactor operated as a batch recirculation system under multiple current steps, in which the applied current is adjusted during the electrolysis to be close to the limiting value. An experimental validation with the anodic oxidation of 3,4,5-trihydroxybenzoic acid is also provided. The results have shown that multiple current steps electrolysis and continuous current control allowed obtaining high oxidation rate and current efficiency. (c) 2007 Elsevier Ltd. All rights reserved.
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