A Room Temperature Stabilization and Waste Volume Reduction Method Tested on Belgian Intermediate-Level Homogeneous Bituminized Waste (Eurobitum)

Research output: Contribution to report/book/conference proceedingsIn-proceedings paper

Documents & links

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.

Details

Original languageEnglish
Title of host publicationProceedings of the ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management ICEM2011 (on CD)
Place of PublicationReims, France
Pages1-11
Volume1
Publication statusPublished - Dec 2011
EventICEM 2011 - 14th International Conference on Environmental Remediation and Radioactive Waste Management - ASME Web site: www.asmeconferences.org/icem2011 and SFEN Web site: www.sfen.fr/icem-11, Reims, France
Duration: 25 Sep 201129 Sep 2011
http://www.asmeconferences.org/ICEM2011/

Conference

ConferenceICEM 2011 - 14th International Conference on Environmental Remediation and Radioactive Waste Management
CountryFrance
CityReims
Period2011-09-252011-09-29
Internet address

Keywords

  • Eurobitum, Intermediate level waste, Waste treatment

ID: 307012