Removal of SO₂ by Corona Discharge Combined with Fe (II) Catalysis

Abstract

The effects of the supply voltage, water flow rate, concentration of inlet SO2and Fe2+in liquid phase on the desulfurization efficiency were investigated by corona discharge with liquid phase on the condition of DC discharge and pulse discharge. The experimental results showed that the desulfurization efficiency increased with the increasing of the supply voltage, water flow rate, and concentration of Fe2+. However, the desulfurization efficiency was nearly unchanged with the increasing of the initial concentration of SO2. The desulfurization efficiency in pulse discharge was better than that of the DC discharge on the same condition, and the highest desulfurization efficiency could be more than 99%.