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문일식,Manickam Matheswaran,Subramanian Balaji,Vasily V. Kokovkin,Sang Joon Chung 한국화학공학회 2007 Korean Journal of Chemical Engineering Vol.24 No.5
operation units for the successful working mediated electrochemical oxidation (MEO) proces. In this study, elec-trochemical cells with DSA electrodes of two types, single stack and double stack connected in series, were used. Theperformances towards the electrochemical generation of Ce(IV) in nitric acid media at 80oC were studied. The cur-rent-voltage curves and cerium electrolysis kinetics showed the dependence on number of cell stacks needed to be con-nected in series for the destruction of a given quantity of organic pollutant. The presence of an optimum region forCe(III) oxidation with a contribution of oxygen evolution, especially at low Ce(III) concentration (high conversiontor processes were fited in a simple model proposed and used to calculate the curent needed in terms of Ce(III) oxi-dation rate and the number of cel stacks required for maintaining Ce(IV)/Ce(III) ratio at the same level during the organicdestruction. This consideration was based on the kinetic model previously developed by us for the organic destructionin the MEO proces.