| 摘要 |
An in situ, on-the-ground method of cleaning contaminated soil comprises breaking and piling up contaminated soil, placing the broken soil in a substantially enclosed on-the-ground system and circulating air under pressure to promote an increase in temperature which aids the oxidation, vaporization and gasification of the contaminants and substantially harmless metabolic products thereof produced by indigenous microorganisms, extracting any gases or vapors comprising the contaminants and metabolic products thereof from the now substantially decontaminated soil under vacuum, filtering the thus extracted gas- or vapor-containing air to separate clean air from the contaminants, and return it to the environment or recycle it, and returning the decontaminated soil to the environment.
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