DECONTAMINATION METHOD AND DECONTAMINATING APPARATUS FOR CONTAMINATED SOIL

PROBLEM TO BE SOLVED: To provide a unified decontamination method and a unified decontaminating apparatus for contaminated soil regardless of the kind of contaminant, considering energy saving, and to provide a decontamination method and a decontaminating apparatus for contaminated soil causing little environmental load. SOLUTION: Magnetite is mixed into contaminated soil contaminated with toxic substances and the mixture is irradiated with microwave, then the magnetite selectively reacting with the microwave is effectively heated and raises the temperature of the surrounding contaminated soil, volatile organic compounds in the contaminated soil are vaporized and released from the contaminated soil, and heavy metals in the further heated contaminated soil are involved and fixed and captured in the magnetite. The vaporized volatile organic compounds and heavy metals involved in the magnetite can be easily separated from the contaminated soil. COPYRIGHT: (C)2010,JPO&INPIT