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Complete Decomposition of Chlorinated-Organic Compounds(PCB, 4-DCBz) with Improved Supercritical Water Oxidation Method

개량된 초임계수 산화법에 의한 염소계 유기물(PCB, 4-DCBz)의 완전분해반응

  • Published : 2005.05.01

Abstract

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 $NaNO_3$ is oxidized to $N_2\;via\;NaNO_2$ 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$(450^{\circ}C,\;p_w=0.25g/cm^3,\;30min)$ Was discomposed perfectly.

Keywords

Supercritical Water;Oxidation;Sodium Nitrate;Sodium Nitrite;PCB

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