| 摘要 |
PROBLEM TO BE SOLVED: To provide a soil treating method which can efficiently reuse soil contaminated by a harmful substance containing at least a heavy metal or an organic contaminant as cleaned soil immediately after thermal treatment, as the heavy metal is not eluted despite such a thermal treatment. SOLUTION: This soil treating method is to thermally treat the soil after adding and mixing cerium hydroxide following the procedure for making an adding and mixing of the cerium hydroxide with the soil contaminated by the harmful substance containing at least the heavy metal or the organic contaminant. The organic contaminant includes at least one selected from the group consisting of polybiphenyl chlorides (PCBs), dioxins, volatile organic compounds (VOCs), benzenes and oils. In addition, the heavy metal preferably includes at least one selected from the group consisting of mercury, arsenic, lead, selenium, zinc, chromium and cadmium. COPYRIGHT: (C)2010,JPO&INPIT
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