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KMID : 1024520050140050513
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Journal of the Environmental Sciences
2005 Volume.14 No. 5 p.513 ~ p.520
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Complete Decomposition of Chlorinated-Organic Compounds(PCB, 4-DCBz) with Improved Supercritical Water Oxidation Method
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Lee Sang-Hwan
Park Ki-Chul
Park Yoon-Yul
Yang Jong-Gyu
Kim Jung-Sung
Hiroshi Tomiyasu
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Abstract
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For the destruction of toxic chlorinated organic compounds, this study proposes improved supercritical water oxidation method (multistep oxidation) using sodium nitrate as an oxidizer. This method solves the problems involved in the existing supercritical water oxidation method. Multistep oxidation means that is oxidized to and NO. Toxic and hard to destroy organic substances like para-dichlorobenzen(4-DCBz), polychlorinate biphenyl(PCB) ware oxidized to non toxic substances in a condition, in which rapid pressure and temperature rise is restrained as much as possible. 4-dichlorobenzene(4-DCBz) and Polychlorinate biphenyl(PCB) in condition Was discomposed perfectly.
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KEYWORD
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Supercritical Water, Oxidation, Sodium Nitrate, Sodium Nitrite, PCB
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