Recovery of Pd from spent fuel: 5. Recovery of Pd from high-level PUREX raffinate

Davydov, V.; Kirshin, M.; Korolev, V.; Pokhitonov, Yu.; Ryazantsev, V.; Savin, R.
March 2008
Radiochemistry;Mar2008, Vol. 50 Issue 2, p176
Academic Journal
Laboratory experiments were carried out on sorption and electrochemical recovery of Pd from actual high-level PUREX raffinate. The initial solutions were high-level liquid wastes after extraction processing of WWER-1000 spent fuel with a burn-up of about 40 MW (kg U)−1, cooled for 5–7 years. In sorption recovery with VP-1AP anion-exchange resin, the Pd yield into the eluent was about 90%. After additional refinement by precipitation, the activity of the resulting palladium black sample was no more than 0.8 mCi (g Pd)−1, and the total decontamination factor was 1.9 × 104.


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