Abstract: In a method for increasing the throughput of packages of waste material of a high caloric value of rotary kiln plants which include a rotary tube with a combustion chamber and a post combustion chamber to which the combustion gases from the rotary tube are supplied and which includes at least one burner supplied by gas from a gas supply, the waste packages are supplied to the rotary tube and burned therein with oxygen containing gas and the combustion gas flows to the post combustion chamber for post combustion, the combustion process being continuously monitored in the kiln and the post combustion chamber and controlled by adjustment of the combustion conditions in the kiln and the post combustion chamber.

Abstract: In a method for increasing the throughput of packages of waste material of a high caloric value of rotary kiln plants which include a rotary tube with a combustion chamber and a post combustion chamber to which the combustion gases from the rotary tube are supplied and which includes at least one burner supplied by gas from a gas supply, the waste packages are supplied to the rotary tube and burned therein with oxygen containing gas and the combustion gas flows to the post combustion chamber for post combustion, the combustion process being continuously monitored in the kiln and the post combustion chamber and controlled by adjustment of the combustion conditions in the kiln and the post combustion chamber.

Abstract: A process for the conversion into a usable condition of actinide ions contained in the solid residue of a sulfate reprocessing process for organic actinide-containing radioactive solid waste, which are present in the form of water soluble sulfato complexes. The residue is absorbed with water of 1 to 2 molar nitric acid so that the residue or the largest amount of residue goes in the solution. The resulting solution is separated from the insoluble constituents of the residue in case of any insoluble residue, and heated to a temperature in the range of 40.degree. C. below the boiling point of the solution to form a hot solution. To the hot solution is added an aqueous barium nitrate solution having an amount of barium nitrate which corresponds to a small excess of barium ions over the amount required stoichiometrically for complete precipitation of the sulfate ions. The resulting reaction solution is held at a selected temperature in the same range as above for a period in the range of 0.5 to 2 hours.