Abstract: A centrifugal feed distributor or feeder (10) to distribute feed (16) in a substantially circular distribution array (58) for fish or livestock. Feeder (10) includes a domed housing (20), a fan assembly (32), and a rotating base (34). The domed housing (20) includes a substantially cylindrical sidewall (22), a closed upper end (24), and a large open lower end (26), which together define a inner chamber (28) and an exterior (30). The fan assembly (32) includes a plurality of fan blades (36) each connected to a vertical shaft (40) that rotates about a center of shaft when an external force (18) is applied to the fan blades. The shaft (40) is also connected to base (34), which rotates about shaft center at the same speed the fan blades rotate. The fan assembly (32) is positioned within domed housing chamber (28). An output gap (52) is defined by the position of the lower end (26) of the housing (20) in relationship to the rotating base (34).

Abstract: A method of predictably dewatering a slurry that contains radioactive particles to a condition for safe permanent storage. Interstitial water is removed from the slurry, and then a sufficient quantity of adsorbed water is removed from the particles so that at the permanent storage temperature the particles will be just unsaturated with respect to adsorbed water. The dewatering endpoint is set to at least unsaturate the particles at the permanent storage temperature. This minimum volume of adsorbed water removal is necessary to assure the subsequent uptake of any condensed water that develops during storage in a sealed container. An upper dewatering endpoint is preferably set so that the volume of adsorbed water removed from the particles does not excessively unsaturate the particles, so that the sealed storage container that eventually confines the dewatered particles will not burst if the particles later become exposed to ambient water or water vapor.