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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (12): 1235-1240. 上一篇    下一篇

研究论文

强电离放电气体洗消DMMP机理研究

吴春笃*,1,3，周建军2，储金宇3，依成武3，白敏冬4   

  1. (1扬州环境资源职业技术学院环境系 扬州 225127)
    (2山东省东营市环境保护局 东营 257091)
    (3江苏大学环境学院 镇江 212013)
    (4大连海事大学物理系 大连 116026)
  • 投稿日期:2009-02-10 修回日期:2009-10-19 发布日期:2010-03-01
  • 通讯作者: 吴春笃 E-mail:wcdujs@126.com
  • 基金资助:

    国家自然科学基金资助项目（No. 50778083）

Mechanism Study on DMMP Decontaminated by Strong Ionization Discharging Gas

Wu Chundu*,1,3 Zhou Jianjun2 Chu Jinyu3 Yi Chengwu3 Bai Mindong4   

  1. (1 Department of Environment, Yangzhou College of Environment and Resources, Yangzhou 225127)
    (2 The Environmental Protection Agency of Dongying City, Dongying 257091)
    (3 School of Environment, Jiangsu University, Zhenjiang 212013) (13556551453514 Department of Physics, Dalian Maritime University, Dalian 116026)
  • Received:2009-02-10 Revised:2009-10-19 Published:2010-03-01
  • Contact: Chun-Du WU E-mail:wcdujs@126.com

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利用强电离放电气体对神经性化学战剂模拟剂甲基磷酸二甲酯(DMMP)进行洗消. 强电离放电气体可以迅速降解DMMP, TOC也有明显下降. 自由基促进剂和抑制剂对DMMP的降解效率有明显影响, 降解以自由基反应为主. 活性极高的羟基自由基可以无选择地攻击DMMP中的CH3—P、P—OCH3、O—CH3等基团, 生成磷酸酯类、甲基磷酸酯类、甲基磷酸、、CO2等中间产物, DMMP最终可能被矿化. 推测强电离放电气体洗消DMMP主要有四条反应路径.

关键词: 强电离放电, 神经战剂, 模拟剂, DMMP, 机理研究

Dimethyl methylphosphonate (DMMP), which acted as the simulant of nerve warfare agents, was degraded by strong ionization discharge gas. Experimental results show that DMMP could be degraded rapidly by the strong ionization discharge gas, and the total organic carbon of the solution decreased significantly. Moreover, the free radical accelerant and inhibitors significantly influenced the degradation efficiencies of DMMP. Free radicals were the most important oxidants for the DMMP degradation reaction in this system. Hydroxyl radical could attack CH3—P, P—OCH3 and O—CH3 groups of DMMP to start a degradation reaction. The analysis of byproducts indicated that phosphate esters, methyl phosphoric acid, and CO2 etc. were formed after the treatment. Furthermore, DMMP would be probably mineralized. Finally, four reaction pathways were predicted for the DMMP degradation by the strong ionization discharge gas.

Key words: strong ionization discharge, nerve warfare agent, simulant, DMMP, mechanism study