Abstract

About 70 m3 of highly active liquid waste generated by the former German WAK (Wiederaufarbeitungsanlage Karlsruhe) reprocessing plant will be conditioned in a new vitrification facility of Forschungszentrum Karlsruhe (FZK). The use of s small-scale liquid-fed ceramic melter necessitates the filling of the glass canisters by four separate pourings. The effect of the multiple batches on relevant properties of the glass product was investigated within the operation of an inactive prototype test facility. The paper describes results from the investigation of glass samples taken from the interfaces between the batches from a cut canister and from non-destructive canister examination using computer tomography.

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