Water-Pollution Control Using Repetitive In Situ Electrical Discharges Combined With Ozone and a Catalyst

For water-pollution control, a combined method was used: in situ electrical discharges, ozonized oxygen flow, and a catalyst. The electrical discharges are formed in water, which is inside the ozonized oxygen bubbles. FeCl
₂
was used as a catalyst (0.25 mmol/L). The streamer discharges in the reactor (with a volume of 1.2 L) were produced with high-voltage pulses. The methylene blue degradation was analyzed from the absorption peak height at 665 nm. In the pollutant-destroying process, an energy efficiency of 9 g/kWh or 8 × 10
^-9
mol/J has been obtained.