FLOCCULATION SEDIMENTATION AGENT AND DECONTAMINATION METHOD OF SOIL INCLUDING RADIOACTIVE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a flocculation sedimentation agent capable of absorbing a radioactive material in radioactive contaminated water (slurry) including fine grains of soil and clay silt containing the radioactive material after cleaning the soil containing the radioactive material, as well as coprecipitating the fine grains of soil and clay silt containing the radioactive material in the radioactive contaminated water (slurry) including fine grains of soil and clay silt containing the radioactive material after cleaning the soil containing the radioactive material, through being added to the radioactive contaminated water (slurry) including fine grains of soil and clay silt containing the radioactive material after cleaning the soil containing the radioactive material.SOLUTION: Bryozoa whose grain size is 0.5 mm or smaller is included as a main component.