Cesium and strontium capsule disposal package
View Patent ↗A package and process of using the package for disposal of radioactive cesium and strontium waste capsules. The package comprises a standard Hanford vitrified high-level waste canister as an outer container, which is approximately filled with three components: the first is a monolithic material with a defined cavity having a composite density less than about 3.5 grams per cubic centimeter and a melting temperature above that expected within the disposal package; the second is a frame for limiting relative movement of the capsules; and, the third are components forming an uninterrupted physical contact, thermal conduction pathway from the waste container to the outside of the package. The package includes lids for closing the disposal package. In the method of the invention, the capsules are loaded into position within the monolithic material, encased in thermally conducting material, and then lids are added to close the package.
1. A cesium and strontium capsule disposal package comprising, (a) a means for holding contents of the disposal package wherein said disposal package has the external dimensions of a vitrified high-level waste canister; (b) a means for containing one or more capsules; (c) a means for retaining in relative position one or more capsules; (d) a means for conducting heat from within the package providing uninterrupted contact from the capsule to the exterior of the package; and, (e) lids for closing the means for containing and the means for holding.
2. A process of using the cesium and strontium capsule disposal package of claim 1 comprising, (a) a step for loading one or more capsules into the means for containing at the location dictated by the means for retaining; (b) step for employing the means for conducting heat from within the package to the exterior of the package; and (c) step of adding lids to close the means for containing and the means for holding.
3. A process of using the cesium and strontium capsule disposal package of claim 1 comprising, (a) a step for loading one or more capsules into the means for containing at the location dictated by the means for retaining; (b) step for employing the means for conducting heat from within the package to the exterior of the package; (c) a step of sealing the means for containing; (d) step for loading the means for containing into the means for holding; and (e) step of adding a lid for each open end of said means for holding.