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Title:
METHOD FOR SUBSURFACE SOIL PURIFICATION
Document Type and Number:
WIPO Patent Application WO/2018/043507
Kind Code:
A1
Abstract:
A method for subsurface soil purification, having a first step for injecting, into an injection well disposed in a ground area, a purification solution that is heated to a temperature higher than the groundwater temperature and that desorbs pollutants in the subsurface soil from the subsurface soil, and a second step for pumping, from a pumping well disposed in the ground area at a distance from the injection well, groundwater containing the purification solution in which pollutants desorbed from the subsurface soil are dissolved.

Inventors:
YAMAZAKI, Yuji (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
SHIMIZU, Takaaki (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
OKUDA, Nobuyasu (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
FURUKAWA, Yasuhide (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
NAKASHIMA, Tomohiro (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
KIYOTOMO, Haruka (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
MUKAI, Kazuhiro (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
INABA, Kaoru (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
MAE, Koudai (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
FUNAKAWA, Masafumi (TOKYO Main Office 1-1, Shinsuna 1-chome, Koto-k, Tokyo 75, 〒1360075, JP)
HASEGAWA, Ai (TOKYO Main Office 1-1, Shinsuna 1-chome, Koto-k, Tokyo 75, 〒1360075, JP)
OMURA, Keisuke (1-1, Shinsuna 1-chome, Koto-k, Tokyo 75, 〒1360075, JP)
TANABE, Kota (1-1, Shinsuna 1-chome, Koto-k, Tokyo 75, 〒1360075, JP)
Application Number:
JP2017/031015
Publication Date:
March 08, 2018
Filing Date:
August 29, 2017
Export Citation:
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Assignee:
TAKENAKA CORPORATION (1-13, Hom-machi 4-chome Chuo-ku, Osaka-sh, Osaka 53, 〒5410053, JP)
TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO.,LTD. (1-1 Shinsuna 1-chome, Koto-ku Tokyo, 75, 〒1360075, JP)
International Classes:
B09C1/02; B09C1/08; B09C1/10
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (TAIYO, NAKAJIMA & KATO Seventh Floor, HK-Shinjuku Bldg., 3-17, Shinjuku 4-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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