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公开(公告)号:US20190193129A1
公开(公告)日:2019-06-27
申请号:US16329735
申请日:2017-08-29
发明人: Yuji YAMAZAKI , Takaaki SHIMIZU , Nobuyasu OKUDA , Yasuhide FURUKAWA , Tomohiro NAKASHIMA , Haruka KIYOTOMO , Kazuhiro MUKAI , Kaoru INABA , Koudai MAE , Masafumi FUNAKAWA , Ai HASEGAWA , Keisuke OMURA , Kota TANABE
摘要: A subsurface soil purification method includes a first process of injecting a cleaning liquid, that separates a contaminant in subsurface soil from the subsurface soil and that has been warmed to a higher temperature than a groundwater temperature, into an injection well provided in the ground, and a second process of pumping up groundwater containing the cleaning liquid, in which the contaminant separated from the subsurface soil has been dissolved, from a pumping well that is provided in the ground so as to be spaced apart from the injection well.
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公开(公告)号:US20200061683A1
公开(公告)日:2020-02-27
申请号:US16346824
申请日:2017-08-29
发明人: Kaoru INABA , Yuji YAMAZAKI , Takaaki SHIMIZU , Nobuyasu OKUDA , Yasuhide FURUKAWA , Tomohiro NAKASHIMA , Haruka KIYOTOMO , Kazuhiro MUKAI , Masafumi FUNAKAWA , Ai HASEGAWA , Keisuke OMURA , Kota TANABE
摘要: A subsurface soil purification method including: warming an activator liquid, for stimulating decomposer microorganisms that decompose a contaminant in subsurface soil, to a higher temperature than a groundwater temperature, and feeding the activator liquid into the subsurface soil by injecting the activator liquid into an in-ground injection well; warming an activator liquid, for stimulating decomposer microorganisms that decompose a contaminant in subsurface soil, the decomposer microorganisms being infused in the activator liquid, to a higher temperature than a groundwater temperature, and feeding the activator liquid into the subsurface soil by injecting the activator liquid into an in-ground injection well, or warming a purification liquid for decomposing a contaminant in subsurface soil, to a higher temperature than a groundwater temperature, and feeding the purification liquid into the subsurface soil by injecting the purification liquid into an in-ground injection well. The subsurface soil purification method also includes forcing air into the injection well, and 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 feed-in of the activator liquid or the purification liquid.
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