CPC B09C 1/10 (2013.01) [B09C 1/02 (2013.01); B09C 1/08 (2013.01); B09C 2101/00 (2013.01)] | 13 Claims |
1. A subsurface soil purification method comprising:
warming an activator liquid, for stimulating decomposer microorganisms that decompose a contaminant in subsurface soil, to a higher temperature than a groundwater temperature;
feeding the activator liquid into the subsurface soil by injecting the activator liquid into an injection well; and
forcing air into the injection well,
wherein forcing air into the injection well comprises feeding the air into the subsurface soil from a position in the injection well that is lower than a position in the injection well for feeding the activator liquid; and
wherein feeding the activator liquid into the subsurface soil and forcing air into the injection well are performed together.
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