AN OVERVIEW OF ELECTROCHEMICAL OXIDATION METHOD FOR WASTEWATER TREATMENT: ANODE SELECTION CHALLENGES

Population demands are leading to an increase in the dumping of wastewater from domestic and industrial activities worldwide. Electrochemical oxidation (EO) has received a lot of attention in wastewater treatment as one of the treatment technologies. The purpose of this paper is to provide readers with valuable information about EO definitions, mechanisms, operational conditions, and statistical analysis based on recent articles. According to the review, EO is more effective in removing organic contaminants than other methods. This depends on whether additional chemicals are used and the type of anode materials. The material of the anode, contact time, pH, and current density are the most crucial parameters of EO technology. The paper demonstrates that selecting the appropriate anode electrode was a significant challenge in treating wastewater through electro-oxidation. According to the cited papers, EO has been used by more than 85% of them alone, while the remaining 10% have utilized it in combination with other conventional and development methods for wastewater treatment. Compared to other materials, titanium was the most commonly used material for anode manufacturing in EO technology. Electrochemical oxidation technology is a reliable method to eliminate a diverse range of pollutants from various wastewater types