Abstract
We developed a room temperature method to recondition intermediate-level homogeneous bituminized waste, called Eurobitum.
Using this method, Eurobitum could be separated in an aqueous and an organic effluent, and a solid asphaltene-salt mix. In
this paper, we present the results of the room temperature reconditioning method using real radioactive Eurobitum samples. The
dissolution and separation processes were optimized. The residual waste could then be pressed towards a material, that might be
suitable for geological disposal. The concentration of radionuclides in the two secondary waste effluents was thereafter determined.
The aqueous effluent contained radionuclide concentrations below the treatment levels for common radioactive waste water treatment
processes, whereas the alpha radioactivity of the organic phase was low enough to consider the possibility to inject it into the
CILVA radwaste incinerator where it would undergo a thermal treatment process together with other solid radwaste. Our proposed
process could reduce the Eurobitum volume considerably. The most flammable and the least radiation resistant molecules and the
nitrates were removed from the original Eurobitum waste. Finally, the residual waste is expected to be more stable in geological
disposal conditions.
Original language | English |
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Title of host publication | Proceedings of the ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management ICEM2011 (on CD) |
Place of Publication | Reims, France |
Pages | 1-11 |
Number of pages | 11 |
Volume | 1 |
DOIs | |
State | Published - Dec 2011 |
Event | 2011 - ICEM : 14th International Conference on Environmental Remediation and Radioactive Waste Management - ASME, Reims Duration: 25 Sep 2011 → 29 Sep 2011 http://www.asmeconferences.org/ICEM2011/ |
Conference
Conference | 2011 - ICEM |
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Country/Territory | France |
City | Reims |
Period | 2011-09-25 → 2011-09-29 |
Internet address |