An Experimental Study of Removing Sulfur Dioxide and Nitrogen Oxides by Stabilized Chlorine Dioxide

In the experiment,stabilized chlorine dioxide solution was used as absorbent and gas-liquid countercurrent was adopted in operation.The effects of packing height,mass concentration of chlorine dioxide solution and solution pH value,etc.on the efficiency of removal rate of sulfur dioxide and nitrogen oxides by stabilized chlorine dioxide were investigated.The results show that the mass concentration of chlorine dioxide has the greatest impact on the removal rate and the pH value is of less influence on the removal rate.The removal rate can reach a higher level under both acidic and alkaline conditions.When the packing height is greater than 20 cm,chlorine dioxide concentration is 0.6 g/L,pH is 3.47,the removal rates of NOx and SO2 can reach 90 % and 99.95 % respectively.