Abstract
A technique of solidification in bottle had been desired of plutonium liquid wastes for safe transportation and storage. Experiments were thus carried out for studying the physico-chemical properties of materials concerning a solidification of the wastes.
It has been found that vermiculite was superior to water absorbability, water permeability, acid resistibility and plutonium sorbability, and that plaster was excellent in solidifying ability over the wide range of acidity. And that the mixture of vermiculite and plaster with an optimum composition was useful for the solidification of the wastes.
In conclusion, the best result is obtained by pouring the wastes into the mixture consisting of vermiculite and plaster in 1: 1 by volume, and hereupon, volume of the wastes poured is limited to half compared with volume of the mixture.
Furthermore, the practical procedure of solidification in bottle and safety controls regarding storage disposal of the resultant wastes have been described.
