| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of treating soil rendering an organohalogen compound containing in the soil harmless. <P>SOLUTION: The method comprises the steps of: vaporizing water and the organohalogen compound by indirectly heating the soil containing the organohologen compound at a temperature not lower than the boiling point of the organohalogen compound to be a dried clean soil not containing water; heating the vaporized organohalogen compound together with the water at a predetermined temperature range to thermally decompose the organohalogen compound; cooling the exhaust gas discharged from the decomposition process under a predetermined temperature not higher than the boiling point of water to condense the water containing in the exhaust gas; carrying out a water treatment of removing suspended particulate so that the suspended particulate concentration containing the condensed water is not higher than 1,000 mg/L; and returning the treated water to the cleaned soil as a wetting water to reuse. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
