[Experimental research for simultaneous removal of SO2 and NOx by aqueous oxidation of O3].
The removal of SO2 and NOx by aqueous oxidation of O3 was studied by self-designed bubbling reactor. The results show that NO can be oxidized efficiently by O3 in liquid phase, while the existence of SO2 has a negative impact on the removal of NO and pH value has a little impact. The NO removal efficiency is 89.6% at [O3]/[NO] = 1.1. When the rang of pH value is in 3-11, NO removal efficiency can be achieved over 80%. At 20-65 degrees C, NO removal efficiency has no change. Combining with wet scrubbing tower, SO2 removal efficiency is nearly 100% and NO2 removal efficiency is 84.2% at [O3]/[NO] = 1.1. SO2 and NOx can be removed effectively by aqueous oxidation of O3 simultaneously.
Ma
Shuang-chen
SC
School of Environment, North China Electric Power University, Baoding 071003, China. msc1225@163.com
Su
Min
M
Ma
Jing-xiang
JX
Jin
Xin
X
Sun
Yun-xue
YX
Zhao
Yi
Y
D000393:Air Pollutants / Q000737:chemistry / Q000302:isolation & purification*; D000397:Air Pollution / Q000517:prevention & control*; D009569:Nitric Oxide / Q000737:chemistry / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D010126:Ozone / Q000737:chemistry*; D013458:Sulfur Dioxide / Q000737:chemistry / Q000302:isolation & purification*
D000393:Air Pollutants; D013458:Sulfur Dioxide; D009569:Nitric Oxide; D010126:Ozone