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| Experiments of sarin simulant DMMP decontamination by strong ionization discharging plasma |
1.School of Environment,Jiangsu University,Zhenjiang,Jiangsu 212013,China; 2.Department of Environment,Yangzhou Vocational College of Environment and Resource,Yangzhou,Jiangsu 225127,China; 3.Department of Physics,Dalian Maritime University,Dalian,Liaoning 116026,China）
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Abstract Dimethyl methylphosphonate（DMMP）,which acts as the simulant of sarin,was treated by strong ionization discharging plasma. Several operation parameters such as acidity,discharge gas flow,discharge power,discharge chamber pressure and plasma flow were investigated respectively through the experiment.The results show that the treatment efficiency of DMMP in alkaline solution is higher than in acid solution. Reaction of DMMP in acid solution is pseudo zero order kinetic reaction,and pseudo first order kinetic reaction in alkaline solution. The treatment efficiency increases with the increasing plasma flow and discharge power. The treatment efficiency increases first and decreases afterwards with the rise of discharge gas flow and discharge chamber pressure. DMMP solution at the concentration of 50 mg/L can be completely degraded in 7 min in the best reaction conditions.
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2009, Vol. 30 
