Patent Number: 054988250
Section: claims

1. A method of effecting radiation shielding and thermal energy removal from a toxic waste storage facility, comprising using water in combination with epsom salt to provide relatively high specific gravity slurry material to block transmission of radiation and to remove thermal energy. 2. The method of claim 1, comprising removing epsom salt from the slurry by precipitation. 3. The method of claim 1, comprising increasing the loading of epsom salt in the slurry by raising the temperature of the slurry. 4. The method of claim 1, comprising absorbing nuclear radiation in the epsom salt and removing epsom salt from the slurry to reduce the radiation level of the slurry. 5. The method of claim 4, further comprising storing the removed epsom salt in the toxic waste storage facility. 6. The method of claim 1, further comprising circulating the slurry through at least one wall, floor or roof of the toxic waste storage facility. 7. The method of claim 6, said circulating comprising circulating the slurry through a plurality of walls, a floor and the roof of the toxic waste storage facility. 8. The method of claim 7, further comprising absorbing nuclear radiation in the epsom salt and removing epsom salt from the slurry to reduce the radiation level of the slurry. 9. The method of claim 8, further comprising reloading the slurry with epsom salt and recirculating the slurry through at least one wall, floor or roof of the toxic waste storage facility. 10. The method of claim 9, further comprising storing the removed epsom salt in the toxic waste storage facility. 11. The method of claim 1, further comprising monitoring the radiation level in the toxic waste storage facility and loading an amount of epsom salt in the slurry that is proportional to the radiation level. 12. A method of removing radioactivity from the interior of a building by transporting radioactive material within a slurry and filtering out the then contaminated material outside the building, thus removing it in a continuous fluid recirculation system. 13. The method of claim 12, said filtering comprising precipitating out the contaminated material. 14. The method of claim 13, further comprising storing the precipitated out material while providing shielding of radiation. 15. A radioactive material storage facility, comprising a building having a portion located below ground level,  wall means for bounding an interior space in the building, and  fluid means for removing thermal energy from the building and for providing radioactive shielding at least at part of the roof of the building.  a hole or open pit formed in ground,  a building having a portion located below ground level,  a liner between at least part of the building and the hole or open pit,  wall means for bounding an interior space in the building, and  fluid means for removing thermal energy from the building and for providing radioactive shielding at least at part of the roof of the building. 16. The facility of claim 15, said fluid means comprising pipes in walls of the building. 17. The facility of claim 15, said fluid means comprising pipes in the roof of the building. 18. The facility of claim 15 said fluid means comprising a liquid having a specific gravity greater than the specific gravity of pure water. 19. The facility of claim 15, said fluid means comprising a liquid having a specific gravity on the order of about 1.2 to about 1.6. 20. The facility of claim 15, wherein said fluid means comprises a liquid, and the facility further comprises circulating means for circulating at least a portion of said liquid. 21. The facility of claim 20, said liquid comprising water and epsom salt in slurry therewith. 22. The facility of claim 21, said epsom salt providing a maximum amount of epsom salt dissolved in the water by elevating temperature of the water above room ambient temperature. 23. The facility of claim 15, wherein said wall means comprises light weight panels. 24. A radioactive material storage facility, comprising 25. The facility of claim 24, said fluid means comprises a liquid, and said liquid comprises water and epsom salt in slurry therewith. 26. The facility of claim 24, wherein said fluid means comprises a liquid, and the facility further comprises circulating means for circulating at least a portion of said liquid. 27. The facility of claim 24, wherein said wall means comprises light weight panels.