| 摘要 |
PROBLEM TO BE SOLVED: To efficiently remove heavy metals from contaminated soil.SOLUTION: Arsenic is removed from contaminated soil 20 by dispersing soil grains 50 and colloids 52 which adsorb arsenic thereon, in ground water 18, and collecting the ground water 18 (contaminated water 19). In addition, a vibratory device 130 applies vibration to the ground water 18, thereby the dispersion of the soil grains 50 and the colloids 52 in the contaminated soil 20, which adsorb arsenic thereon, is accelerated, and as a result, arsenic 60 is effectively removed from the contaminated soil 20. |
