Icone23-2180 Experiment on Release Inhibition of Ruthenium in Dry Out Situation of High Level Liquid Waste

Ishio, Takahiro; Shibata, Yuki; Kodama, Takashi; Kato, Tetsuya; Tsukada, Takeshi; Serrano‐Purroy, Daniel; Glatz, Jean‐Paul

doi:10.1299/jsmeicone.2015.23._icone23-2_70

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2022

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“…The experimental device is a rotary evaporator. Unlike Ishio et al [92], the nitric solution used The nitric solution containing Ru corresponds to the anolyte (Figure 5). Ru comes from commercial solutions containing nitrosyl ruthenium ions or comes from dissolution in HNO3 of RuO2.xH2Ü.…”

Section: Addition Of Sucrosementioning

confidence: 99%

Behaviour of ruthenium in nitric media (HLLW) in reprocessing plants: a review and some perspectives

Nerisson

Barrachin

Ohnet

et al. 2022

J Radioanal Nucl Chem

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The reprocessing of spent nuclear fuel produces high level liquid waste (HLLW). Due to the decay heat, the concentrated nitric solutions containing fission products (FP) are stored in cooled tanks. Actually, the loss-of-cooling accident on these HLLW storage tanks could lead to releases of radioactive materials to the environment, especially ruthenium volatile species.After a general presentation on the physico-chemical behaviour of ruthenium in concentrated nitric acid, this paper successively details the different transfer modes of ruthenium reported in the literature, and the available trapping techniques. Based on this review, research perspectives are presented aiming at updating data concerning ruthenium behaviour in this context.

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Section: Addition Of Sucrosementioning

confidence: 99%