Removal of pharmaceuticals from wastewaters by electrooxidation

The removal of the non-steroidal anti-inflammatory drug diclofenac (DCF) was carried out by
electrooxidation on Dimensionally Stable Anodes (DSA) with the composition Ti/RuO2-TiO2.
The DSA electrodes were obtained by thermal decomposition of the appropriate precursors.
The electrolyses were carried by using solutions of 100 mg/L DCF in 0.1 M Na2SO4
supporting electrolyte in acidic medium at various current densities and electrolysis times.
The removal of DCF was assessed by recording UV-VIS spectra and chemical oxygen
demand (COD) determination of the electrolysed solutions. The results showed the
mineralization of the DCF during the electrooxidation on Ti/Ru0.3Ti0.7O2 electrodes.