Effect of Electro-generated Active Chlorine in Produced Water Treatment of Northeast Region of Brazil
Organic componds; Real produce water; Electrochemical oxidation.
This work studies the effect of electro-generated active chlorine in the degradation of organic compounds of real produce water, generated by local petroleum exploration, through indirect electrochemical oxidation (IEO), using Ti/Ru0.3Ti0.7O2, platinum supported on Ti (Ti/Pt) and boron doped diamond (BDD) anodes in batch cells. For each electrode was applied current density 45 mA cm-2, to verify the chemical oxygen demand (COD) and the intermediates produced were made spectrophotometric analyzes, the evolution of chlorinated species were measured by their concentration at the end of the treatment. According to the results obtained, the COD removal was approximately 42% and 52% using BDD and Ti/Pt respectively, Ti/Ru0.3Ti0.7O2 anode showed a better degradation efficiency with 85% removal of organic matter. As a consequence of the greater formation of chlorinated oxidative species (ClO2-, ClO2, Cl2) in this anode during the electrochemical treatment.