[Experiment study on the aqueous removal of SO2 by Mn2+ catalytic ozonation].
The removal of SO2 by Mn2+ catalytic aqueous ozonation was investigated by experiment, so as to find the effects of Mn2+ for aqueous removal of SO2 by ozonation. The concentration curve of ozone was drawn by standard iodine method. The operating factors included mole ratio of ozone to sulfur dioxide and concentration of Mn2+. When absorption solution has no Mn2+, the removal efficiency of SO2 was 35% at [O3 ]/[SO2 ] = 0.5,but the efficiency was 70% when Mn2+ was put into absorption solution at the same value of [O3 ]/[SO2].With the increasing of [3O]/[SO2], the removal efficiency of SO2 increases. And as concentration of Mn2+ increases, the efficiency also increases. There is an appropriate concentration range which is 1.2 x 10(-2)-1.2 x 10(-1) mol/L for Mn2+.
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
Sun
Yun-Xue
YX
Jin
Xin
X
Zhao
Yi
Y
D000393:Air Pollutants / Q000737:chemistry / Q000302:isolation & purification*; D002384:Catalysis; D002681:China; D008345:Manganese / Q000737:chemistry*; D010126:Ozone / Q000737:chemistry*; D013458:Sulfur Dioxide / Q000737:chemistry / Q000302:isolation & purification*
D000393:Air Pollutants; D013458:Sulfur Dioxide; D008345:Manganese; D010126:Ozone