| 摘要 |
<P>PROBLEM TO BE SOLVED: To decontaminate radiation-contaminated soil. <P>SOLUTION: Radioactive substances stuck to solid contents of radiation-contaminated soil are peeled off from the solid contents by impulse force of treatment water with high pressure and dissolved in the treatment water, solid contents (coarse particles) mixed with the treatment water are washed and removed, the solid contents washed and removed from the treatment water are reproduced to materials and the materials are separated from the treatment water. Solid contents (fine particles) are washed and removed from the treatment water by centrifugal separation, the treatment water is separated into a supernatant liquid and a precipitated slurry, radioactive substances included in the supernatant liquid generated by precipitation treatment are adsorbed and removed, the supernatant liquid from which the radioactive substances are removed and water collected through a series of processing are collected and reproduced to washing water for washing a treatment liquid and solid contents, the precipitated slurry including the radioactive substances is solidified, enclosed in a shield container and provided to waste management disposal. <P>COPYRIGHT: (C)2013,JPO&INPIT |
