Removal of NOx and SO2 in plasma reactor with water film

SO₂ and NO_x have become serious air pollutants in such things as photochemical smog and acid rain. In spite of an attempt to reduce the amount of SO₂ and NO_x emitted, the density of SO₂ and NO_x in the atmosphere has remained on a stable level, or even become worse. Here, we designed a novel type of a water film corona discharge experiment model. The reactor is composed of needle-plate electrodes that are placed in a glass container filled with the flue gas, (the plate electrode is immersed in the water). In this paper, we emphasized the influence of water on removal rates of NO and SO₂. The experimental results show that the NO removal rate significant increased with increasing applied DC voltage but the SO₂ removal rate was not significantly affected by applied DC voltage and slightly improved in the presence of water film. This project is very significant for the prevention of acid rain and the treatment of dust of flue gas and the improvement on the traditional electrical dust precipitator.