Mineralization of bisphenol A by anodic oxidation with mixed metal oksit and boron doped diamond

In this study, mineralization of BPA by anodic oxidation by using mixed metal oxide and boron doped diamond electrodes was researched. In order to observe the effect of anode electrode material on mineralization level, 6 electrodes of different types were used in the anode. (5 MMO and 1 BDD) In this study, mixed metal anode electrode mineralization level of BPA was measured in the beginning and end of the experiment by measuring the total organic carbon value of BPA solution. The study was realized in two stages. In the first stage effect of electrode type on total organic carbon removal efficiency was researched at 3 different current density. In second stage, most effective anode was selected as electrode and effect of various parameters (current density, mixing rate, distance between electrodes, BPA concentration and electrolyte (phosphoric acid) concentration) on total organic carbon removal efficiency, was researched. Besides, depending on the electric amount spent for total organic carbon removal, specific energy consumption was calculated. BDD electrode managed to mineralize all of the BPA with 100% total organic calrbon removal efficiency at the end of 180 minutes and at 125 mA/cm2 current density. PtO2 electrode managed a removal of 42.61% and other MMO electrodes managed a removal of 35% at same current density and period. At the end of the study, it was observed that total organic carbon removal efficiency increased as current density increased, that increasing mixing rate caused maximum 6% increase in efficiency, that increasing BPA concentration decreased efficiency and that increasing electrolyte amount by 8 times increased the efficiency by 10%.