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4381844 Lid seal for nuclear waste containers
NEW
PATENTS
4381844 LID SEAL FOR NUCLEAR WASTE CONTAINERS Ferdinand H Bondy .
A folded gasket formed of a length of flexible fabric-like material is disclosed as being disposed between juxtaposed surfaces at the juncture of the lid periphery to a container mouth to adapt the container to withstand the rigors of transport, storage and burial as in the case of the nuclear waste material and the like.
A method of and an apparatus for the treatment of radioactive waste water from a nuclear electricity-generating power plant. The radioactive waste water containing soluble solids, usually boric acid, is concentrated by evaporation according to the invention to a solids concentration above that which will form a saturated solution at room temperature, whereupon the resulting concentrate is introduced into a storage vessel and cooled therein to room temperature. Solids precipitate and sediment in this vessel and water is decanted from the sediment and recycled to the evaporator where the process is repeated. The process allows the amount of waste in terms of the original material treated which must be stored for a given prolonged period, say between one half and three quarters of a year, for radioactive decay prior to packaging of the waste to be significantly reduced by comparison with earlier systems.
4441437
4440673 METHOD OF AND APPARATUS FOR THE TREATMENT OF RADIOACTIVE WASTE WATER FROM NUCLEAR POWER PLANTS
PROCESS FOR THERMIC TREATMENT OF SLUDGES, PARTICULARLY TREATMENT OF CLARIFICATION SLUDGES Gerhard Moskau, Saarbruecken Dudweiler, Federal Republic Of Germany assigned to Saarberg-Fernwarme GmbH
Rainer Ambros, Norbert Brenner, Jurge Fischer, Biblis, Federal Republic Of Germany assigned to Rheinisch-Westfalisches Elektrizitatswerk AG
In a process for the utilization of the heat content of combustible components in sludges, in particular in clarification sludges, the sludge, which still contains a proportion of water, is burnt in a pressure-tight furnace. The resulting steam and exhaust gases are conducted through heat exchangers and a thin layer evaporator, and the exhaust heat and heat of condensation effect, in one or more stages, a heating and thickening of the sludge to be burnt. Pressure-drop machines can be driven by the excess pressure of
PATENTS
4381844 LID SEAL FOR NUCLEAR WASTE CONTAINERS Ferdinand H Bondy .
A folded gasket formed of a length of flexible fabric-like material is disclosed as being disposed between juxtaposed surfaces at the juncture of the lid periphery to a container mouth to adapt the container to withstand the rigors of transport, storage and burial as in the case of the nuclear waste material and the like.
A method of and an apparatus for the treatment of radioactive waste water from a nuclear electricity-generating power plant. The radioactive waste water containing soluble solids, usually boric acid, is concentrated by evaporation according to the invention to a solids concentration above that which will form a saturated solution at room temperature, whereupon the resulting concentrate is introduced into a storage vessel and cooled therein to room temperature. Solids precipitate and sediment in this vessel and water is decanted from the sediment and recycled to the evaporator where the process is repeated. The process allows the amount of waste in terms of the original material treated which must be stored for a given prolonged period, say between one half and three quarters of a year, for radioactive decay prior to packaging of the waste to be significantly reduced by comparison with earlier systems.
4441437
4440673 METHOD OF AND APPARATUS FOR THE TREATMENT OF RADIOACTIVE WASTE WATER FROM NUCLEAR POWER PLANTS
PROCESS FOR THERMIC TREATMENT OF SLUDGES, PARTICULARLY TREATMENT OF CLARIFICATION SLUDGES Gerhard Moskau, Saarbruecken Dudweiler, Federal Republic Of Germany assigned to Saarberg-Fernwarme GmbH
Rainer Ambros, Norbert Brenner, Jurge Fischer, Biblis, Federal Republic Of Germany assigned to Rheinisch-Westfalisches Elektrizitatswerk AG
In a process for the utilization of the heat content of combustible components in sludges, in particular in clarification sludges, the sludge, which still contains a proportion of water, is burnt in a pressure-tight furnace. The resulting steam and exhaust gases are conducted through heat exchangers and a thin layer evaporator, and the exhaust heat and heat of condensation effect, in one or more stages, a heating and thickening of the sludge to be burnt. Pressure-drop machines can be driven by the excess pressure of