Consider Submerged Arc (SA) ...

Consider Submerged Arc (SA) depollution technology for removing organic colorants from wastewater. The SA uses a high-current low-voltage electrical discharge between electrodes in the wastewater to generate plasma bubbles within the water. This plasma produces ultra-violet (UV) radiation and short-lived radical oxidants. The radical oxidants, primarily hydroxyl (OH•) and its byproducts, oxidize organic molecules including pollutants and the cell walls of bacteria. UV damages the DNA of bacteria and viruses. The effectiveness of the method may be seen by its extremely high yield in treating treatment 100 mg/l methylene blue (MB) solution: ~500 g/kWh @ 95% removal. Most important, the cost is low (e.g.