| 摘要 |
PROBLEM TO BE SOLVED: To provide a cleaning method of contaminated ground and a cleaning apparatus of the contaminated ground, wherein injection trouble is easily eliminated and water permeability near a well is improved. SOLUTION: Disclosed is the cleaning method of the contaminated ground, in which the hydrogen peroxide solution is injected into the contaminated ground 1 via a well 20 to activate aerobic microorganisms living in the contaminated ground 1, to clean the contaminated ground 1 in situ. The upper part of the well 20 is in a closed state, and the hydrogen peroxide solution is injected into the contaminated ground 1 via a pipe 30 set in the well 20. When an injection trouble of the hydrogen peroxide solution occurs, the sealed part (concretely a release valve 21) at the upper part of the well 20 is opened. COPYRIGHT: (C)2010,JPO&INPIT
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