Application of electrochemical/BDD process for the treatment wastewater effluents containing pharmaceutical compounds

Application of electrochemical/BDD process for the treatment wastewater effluents containing pharmaceutical compounds

The degradation of solutions with paracetamol and diclofenac has been studied by electro-oxidation(EOx), in a reactor with a boron-doped diamond (BDD) anode and a stainless steel cathode. Differentcurrent densities were applying: 1.56 to 6.25 mA/cm2. Close to 50% of mineralization is always achieveddue to the great concentration of OH generated at the BDD surface under EOx, with release of NH4+ andNO3ions. Same solutions have been comparatively treated with electro-Fenton (EF/BDD) process,improved the mineralization reached 80% of efficiency. Reversed-phase chromatography was carryingout to identify some by products that evolve under de degradation process.

The degradation of solutions with paracetamol and diclofenac has been studied by electro-oxidation(EOx), in a reactor with a boron-doped diamond (BDD) anode and a stainless steel cathode. Differentcurrent densities were applying: 1.56 to 6.25 mA/cm2. Close to 50% of mineralization is always achieveddue to the great concentration of OH generated at the BDD surface under EOx, with release of NH4+ andNO3ions. Same solutions have been comparatively treated with electro-Fenton (EF/BDD) process,improved the mineralization reached 80% of efficiency. Reversed-phase chromatography was carryingout to identify some by products that evolve under de degradation process.