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《Chinese Journal of Explosives & Propellants》 2007-02
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Study on 2,4-Dinitrotoluene Waste Water Disposal by Supercritical Water Oxidation(SCWO)

ZHAO Bao-guo,LIU Yu-cun,CHANG Shuang-jun(Department of Chemistry and Environment,North University of China,Taiyuan 030051,China)  
The non-catalytic supercritical water oxidation(SCWO) of DNT waster water was studied in an intermittent reactor.The oxidation decomposition efficiency of organic compounds in supercritical water was investigated.The treated water samples were determined by COD and detected with HLPC,and gas samples were analyzed with qualitatively color.Under the conditions of residence time 30s,600℃ and 25MPa pressure or so,the SCWO is efficient for disposal of explosive waste water containing DNT(CODcrof treated water samples reached 28mg/L,and without harmful gases).The relationship between reaction duration,pressure,temperature and the removal efficiency of DNT in explosives waste water was investigated.The impact degree and optimum condition of the oxidation decomposition were determined.The results show that the supercritical water oxidation can remove DNT mostly.Under the conditions of supercriticality and rich oxygen,the reaction temperature and duration are the principal factors affecting the removal of COD.
【Fund】: 教育部科学技术研究项目(200512)
【CateGory Index】: X789
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