Treatability investigation of anodic oxidation of cephalosporin group some antibiotics

In this study, it is aimed to investigate the efficacy of new generation and stable Ti doped Sn/Sb/Ni anodes to eleminate Cefazolin (CFZ) antibiotic from wastewater (hospital and pharmaceutical factories) by electrochemical methods. These anodes are well known by their promising results in ozone generation. Synthetic wastewater samples containing 50 mg/L CFZ were prepared and used in this treatment process. Ultra-Performance Liquid Chromatography (UPLC) was used to measure CFZ residual consentration. Three control (working) parameters were measured; salt types and concentrations (NaCl: 1000-2500 mg/L, Na2SO4: 1000-2500 mg/L, KCl: 250-1500 mg/L), pH (3-9) and current density (10-50 mA/cm2). However, salt type and concentration were concidered to be the most influential parameters for electrochemical removal of COD, TOC and CFZ. Based on the efficient results obtained from the use of KCl salt, it was considered as the optimum salt type in this oxidation process. As a result of this study, optimum conditions for COD, TOC and CFZ removal have been selected as 750 mg/L KCl, pH:7 and 50 mA/cm 2 current density.