Examination of the concept of volume reduction of contaminated soil. Separation of fine silt, capture and volume reduction method for pollution organic matter

PCS Co., Ltd. (PCS: Pollution Control Systems) considered that the artificially creation of a greater number of places with lower potential field (micro-bubble) in radioactively polluted areas by the accident of Fukushima Daiichi NPP can be very effective measure for the removal of radioactivity pollution, after site investigation in the radioactive polluted fields in Namie town, PCS then developed decontamination technology using own unique structured floating pressure-treatment device. We have confirmed the performance of this technology in a polluted field in Koriyama city, Fukushima Prefecture. By further developing this method, jointly using the subcritical water processing equipment and a high concentration microbial decomposition device, PCS has finally developed a method that is useful for a wider polluted area including organic contamination. (author)