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Abstract

For a coherent approach in long-term waste management a potential resolution for MAW management is considered involving the merging of selected medium level liquid waste (MLLW) streams with HAW. This is based on the fact that ;the vitrification process is highly flexible and adaptable from the range of acceptable chemical constituent compositions which can be incorporated. Blending such streams of variable chemical composition with HAW may however produce compatibility problems for the vitrification process and so management control and usage of complexing agents etc., needs to be exercized. Such a management concept of blending of wastes is foreseen to accrue benefits in the form of eliminating a MAW category and with it all the process steps and costs involved and an added advantage of grouping together the long-lived waste fractions into the presently best available matrix. Going another step further, the merging of the HAW and MLLW streams followed by a common OXAL treatment step allows a complete integrated liquid alpha waste splitting scheme to be realized and in particular offers amongst a number of conceivable selective options and benefits the possibility for isolating and treating separately Np and its precursors. These waste management alternatives are being considered for incorporation into the work activity programme of the PETRA project currently underway at the JRC Ispra and briefly described herein.

Additional information

Authors: DWORSCHAK H, JRC ISPRA ESTAB. (ITALY);HUNT B, JRC ISPRA ESTAB. (ITALY);MOUSTY F JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY)
Bibliographic Reference: INTERNATIONAL MEETING "FUEL REPROCESSING AND WASTE MANAGEMENT", JACKSON, WYOMING, (USA), AUG. 26-29, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31488 ORA
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