| 摘要 |
PROBLEM TO BE SOLVED: To provide an organohalide decomposition treatment system for achieving the perfect treatment of PCB-containing matter, for example, such as insulating oil or the like of a transformer or the like. SOLUTION: The organohalide decomposition treatment system is equipped with a heat exchanger 12 for subjecting high temperature and high pressure wastewater 10 discharged from a hydrothermal oxidative decomposition device 20 to heat exchange treatment to form wastewater having a temperature of 100°C under atmospheric pressure, a gas-solid separation means 15 for separating the cooled wastewater 11 into a solid component 13 and a gas component 14, a cooling means 17 for cooling the gas component from the gas-solid separation means 15 to remove moisture as treated water 16, a gas refining means 19 for refining the gas passed through the cooling means 17 to form cleaned gas 18, a solid treatment means 21 for removing organic matter (e.g.; a very small amount of organohalide and decomposition matter or the like thereof) contained in the solid component 13 from the gas-solid separation means 15 by an organic washing liquid 20 and a wastewater cleaning means 14 for cleaning the wastewater 22 discharged from the solid treatment means 21 to obtain PCB-free wastewater 23. COPYRIGHT: (C)2003,JPO |
