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Patent Searching and Data


Title:
CONTAMINATED SOIL CLEANING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/043508
Kind Code:
A1
Abstract:
This contaminated soil cleaning system is for decomposing a contaminant in a contaminated soil E, and comprises: a step for injecting, from a water injection well, into the contaminated soil, an injection liquid that includes a cleaning agent for decomposing the contaminant or an activator for activating biological decomposition exhibited by the cleaning agent; a step for measuring the concentration of the cleaning agent or the activator in underground water in an observation well or a pumping well provided to a place away from the water injection well; and a step for automatically controlling an added amount of the cleaning agent or the activator to the injection liquid or a pumping amount from the pumping well, on the basis of the measured concentration.

Inventors:
NAKASHIMA, Tomohiro (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
SHIMIZU, Takaaki (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
KIYOTOMO, Haruka (5-1 Otsuka 1-chome, Inzai-sh, Chiba 95, 〒2701395, JP)
SHIMIZU, Yamato (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)
YAMAZAKI, Yuji (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)
Application Number:
JP2017/031017
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)
International Classes:
B09C1/10; B09C1/02; B09C1/08
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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