A combined plasma photolysis (CPP) method for removal of CS2 from gas streams at atmospheric pressure.
A combined plasma photolysis (CPP) reactor that utilizes a dielectric barrier discharge (DBD) plasma and 207 nm UV radiation from discharge-driven KrBr* excimers was designed and constructed. Gas streams containing CS2 were treated with stand-alone DBD and CPP at atmospheric pressure. In comparison to DBD, CPP greatly enhanced the removal efficiency at the same applied voltage, waste gas concentration and gas residence time. Thus the applied voltage could be reduced to a certain extent in the plasma processing of industrial wastes. Influences of the KrBr* radiation, inlet CS2 concentration and gas residence time on CS2 removal by CPP were also studied. In addition, the likely reaction mechanisms for the removal of CS2 by CPP are suggested based on the byproducts analysis. The enhanced removal efficiency and reaction mechanisms implied that the CPP process would probably be suitable for the removal of a large number of gaseous pollutants.
Fang
Hao Jie
HJ
Institute of Environmental Science, Fudan University, Shanghai 200433, China.
Hou
Hui Qi
HQ
Xia
Lan Yan
LY
Shu
Xiao Hong
XH
Zhang
Ren Xi
RX
D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry / Q000528:radiation effects; D000397:Air Pollution / Q000517:prevention & control*; D001274:Atmospheric Pressure; D002246:Carbon Disulfide / Q000032:analysis* / Q000737:chemistry / Q000528:radiation effects; D004563:Electrochemistry; D005740:Gases / Q000032:analysis; D010782:Photolysis; D014466:Ultraviolet Rays
D000393:Air Pollutants; D005740:Gases; D002246:Carbon Disulfide