Electrochemical degradation of anthraquinone dye Alizarin Red S by anodic oxidation on boron-doped diamond

The electrochemical oxidation of Anthraquinone dye (Alizarin Red S) has been studied on boron-doped diamond (BDD) electrodes on acid medium by cyclic voltammetry and bulk electrolysis. Galvanostatic electrolyses cause complex oxidation reactions that lead to the incineration of Alizarin Red S. The analyses of the chemical oxygen demand (COD) and the total organic carbon (TOC) during the galvanostatic electrolyses at BDD anodes confirm that the electro-oxidation of Alizarin Red S leads to CO2. The complete removal of organic compounds contained in the waste has been obtained at low and high current densities.