2019 Volume 48 Issue 3 Pages 156-161
The municipal solid waste incineration ash from the Fukushima Prefecture includes radioactive Cs. There is a need to grasp the basic physical properties of this ash, determine the leaching properties of radioactive Cs, and examine leaching suppression methods in order to continue to advance appropriate disposal techniques. For this purpose, we carried out material sampling from a municipal solid waste incineration plants in the Fukushima Prefecture in summer and winter. We then conducted tests on the samples. Results showed that the radioactive Cs leaching suppression method for mixing clay minerals at weight ratio of 5 to 20％ can become an effective safety measure.
