Soil Decontamination and Soil Volume Reduction Technologies for Benthic Sediment in Lakes, Reservoirs, and Other Bodies of Water
Type:
Presented during:
WODCON XX: "The Art of Dredging" - 2013, Brussels, Belgium
Authors:
Enomoto T
Abstract: Radioactive materials released into the atmosphere following the accident at the Fukushima Daiichi Nuclear Power Plant fell across a wide region of Japan. A significant portion of this radioactive fallout was adsorbed into soil particles and carried into streams and rivers, eventually accumulated on the bottoms of lakes, reservoirs, and other bodies of water. Little is known at this point regarding the distribution and characteristics of the radioactive materials and the soil particles to which they were adsorbed.
Our research seeks to identify and develop technologies for decontaminating such benthic sediment and reducing the volumes of contaminated soil.
As part of these efforts, rather than drawing on new and special mechanisms, we explored ways to achieve the decontamination desired by modifying and combining existing dredging and dehydration technologies. This study focuses on the following aspects of soil decontamination and soil volume reduction technologies:
-
Understanding the distribution of radioactive contaminants
-
Soil decontamination technologies
-
Soil volume reduction technologies
Keywords: Soil decontamination technology, soil volume reduction technology, bottom sludge dredging equipment, high-density thin-layer soil dredging,