Also known as anodic oxidation, is considered a way to treat wastewater, mainly for industrial effluents. The simple case consists of two electrodes, operating as anode and cathode. Appropriate power input alongside sufficient electrolyte leads to strong oxidizing species, which interact with and degrade the contaminants.
The simple set-up and effective treatment of pathogenic organic pollutants, has resulted in great popularity. Significantly, no external additives are required, as the species are released right at the anode surface.