Method for pyrohydrolitic decomposition of phosphorus-containing liquid contaminated with highly enriched uranium

Wastes containing haloorganics and/or phosphorus compounds are incinerated in a steam-fluidized bed of Al and/or Mg and/or Ca compounds, e.g. CaO, at 300-800.degree.; the waste gases are then incinerated at approx. 1000.degree. and scrubbed at pH 5. A 3/7 tri-Bu phosphate kerosene mixture contaminated with Uranium was sprayed into the bed at 15 kg/h. The afterburner at 100.degree. was fed with 33 m3 oxygen/h to facilitate complete combustion to CO2 and H2O. After 36 h the CaO was exhausted. The recirculating waters in the scrubber contained only 0.02% of the activity of the wastes and the gaseous effluent none activity. (orig./PW)