Chemosphere 2000-02-01

Minimization of cobalt nuclide emissions in supercritical water oxidation of spent resin.

Y J Huang, H P Wang, C T Li, Y C Chien

Index: Chemosphere 40(4) , 347-9, (2000)

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Abstract

A rapid and complete destruction of organics in the supercritical water oxidation (SCWO) of the Co-exchanged resin was found experimentally. Due to an extremely low solubility of CoSO4 salt formed and separated effectively in the SCWO process, a minimal release of the nuclide Co would be warranted. In addition, recycling of Co nuclides is also possible by decomposition of the CoSO4 species at elevated temperatures (> 1040 K).