Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes

Electrochemical oxidation (EO) using boron-doped diamond (BDD) electrodes attracted increasing interests due to its high efficiency in mineralizing chlorinated organic pollutants water. However, it produces hazardous disinfection by-products (DBPs) including chloramines, chlorate and perchlorate ions discharges acidic streams. In this work, an attempt neutralize the effluent reduce production of DBPs was developed. To do that, EO 2-chloroaniline (2-CA) single divided electrochemical flow cells BDD anode stainless steel cathode investigated. The results showed that complete degradation 2-CA mineralization yields were achieved compartment cells. separation anolyte catholyte by anion exchange membrane (AEM) configuration enhanced treatment reduced energy consumption; while, higher concentrations free chlorine, nitrate, chlorate, generated anolyte. A post-treatment treated solution cathodic at low current density effective reducing amount chlorine ions, transferring chloride nitrate anodic electro-dialysis, neutralizing catholyte. Divided cell has potential achieve more efficient for recovery valuable (which can be considered as a powerful synthetic tool, from environmental point view; produce high-added value products).