| 摘要 |
PROBLEM TO BE SOLVED: To provide a contaminated soil cleaning system and a contaminated soil cleaning method for feeding oxygen to the whole of a contaminated region and capable of rapidly and efficiently performing water passing cleaning and cleaning with aerobic bacteria in situ. SOLUTION: A water injecting well 10 and a pumping well 20 are installed so as to sandwich the contaminated region 60, respectively and an air injecting well 30 is installed between the water injecting well 10 and the pumping well 20. The air injecting well 30 is provided with a superfine bubble generator 40 capable of forming superfine bubbles, by which oxygen can be fed to water passing through the air injecting well 30. Thus, the oxygen can be fed to the whole of the contaminated region 60, and the water passing cleaning and the cleaning with aerobic bacteria can be rapidly and efficiently performed in situ. COPYRIGHT: (C)2006,JPO&NCIPI
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