Electrodegradation study of phenolic compounds containing in olive mill wastewaters of the chiadma region

The electrochemical oxidation of PP (polyphenols) in Oil Mill Wastewaters (OMW) has been studied on Tin oxide (SnO2) electrode in chloride containing solution. The degradation follows the pseudo-first-order kinetics indicating that the process was controlled by mass transfer. The supporting electrolytes containing nitrate and carbonate exhibited slower kinetics than those obtained using chloride. The PP can be electrochemically degraded effectively in chloride containing solution. The removal efficiency of PP was found to increase with the decrease of temperature and with the increase in both current density and NaCl concentration. The effect of temperature shows that for 25°C and 45°C a removal efficacy of PP was found to be 91% and 79%, respectively. For 1 % NaCl, 1.5 % NaCl and 2% NaCl solutions, the achieved removal of PP was 91%, 86% and 82%, respectively.