Title:
METHOD FOR CLEANING SOIL
Document Type and Number:
Japanese Patent JP2015196135
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for cleaning soil, in which contaminated soil can be cleaned easily while reducing a cleaning cost regardless of the presence or absence of a ground facility.SOLUTION: The method for cleaning soil comprises: an observation well formation step of forming an observation well 10 in the soil S containing at least one contaminant of oil, volatile organic compounds, heavy metals and cyan compounds; an injection well formation step of forming an injection well 11 on the outer peripheral side of the observation well 10; a measurement step of measuring an oxidation-reduction potential of the soil S in the observation well 10; an injection step of injecting high-concentration oxygen water into the soil S from the injection well 11 as an injection liquid L so that the measured oxidation-reduction potential becomes a value which is suitable to activity of microorganisms in the soil S and falls within a predetermined range; and a cleaning step of cleaning the soil by decomposing the contaminants by the microorganisms.
Inventors:
IMAYASU EIICHIRO
NOGUCHI KAZUHIRO
FUKUNAGA KAZUHISA
YAMASHITA NOBUHIKO
NIIMURA TOMOYA
HAGINO YOSHIAKI
NOGUCHI KAZUHIRO
FUKUNAGA KAZUHISA
YAMASHITA NOBUHIKO
NIIMURA TOMOYA
HAGINO YOSHIAKI
Application Number:
JP2014075813A
Publication Date:
November 09, 2015
Filing Date:
April 01, 2014
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN ENG CO
OSAKA GAS CO LTD
FUDO TETRA CORP
OSAKA GAS CO LTD
FUDO TETRA CORP
International Classes:
B09C1/10
Domestic Patent References:
| JP2010263824A | 2010-11-25 | |||
| JP2007268401A | 2007-10-18 | |||
| JP2005279345A | 2005-10-13 | |||
| JP2004066195A | 2004-03-04 |
Foreign References:
| WO2006122537A1 | 2006-11-23 |
Attorney, Agent or Firm:
Masatake Shiga
Mitsuo Teramoto
Sumio Tanai
Hiroshi Yamaguchi
Mitsuo Teramoto
Sumio Tanai
Hiroshi Yamaguchi