| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for cleaning contaminated soil in which the treatment efficiency is improved and the apparatus is simplified by continuously treating the contaminated soil. SOLUTION: The cleaned soil is obtained by removing gravel having about≥5 mm particle diameter in the contaminated soil with a vibration screen 13, settling and separating a soil coarse particle having about≥2 mm particle diameter and overflowing soil fine particle having a particle diameter smaller than that of the soil coarse particle while stirring the contaminated soil made slurry-like in a 1st slurry vessel 14, stirring and cleaning and ultrasonic-cleaning the soil fine particle, ultrasonic cleaning the slurry like soil fine particle while circulating in a finish cleaning pipe 17 to strip off the contaminant stuck on the surface of the soil fine particle, classifying the soil fine particle after being finish-cleaned with cyclone type classifiers 18 and 19 to take out the soil having about≥30μm particle diameter and dehydrating the soil. COPYRIGHT: (C)2005,JPO&NCIPI
|
