2009 Volume 71 Issue 1 Pages 1_101-1_107
The developed seeding material is powdery, and it is therefore difficult to transport and handle and is easily flushed out of the Johkasou. To solve these problems, the seeding material was solidified. Solidification was achieved by kneading seeding material and water together with rice powder as binder and by applying a load to the kneaded solid in a mold. Knead frequency, ratios of added water and binder, and load applied to the kneaded material were changed as experimental conditions. Good solidification was achieved under the conditions in which knead frequency was over 20 times, ratios of added water and binder were 25-27.5w/w% and 5-15w/w%, respectively, and solidification load was over 147N.
