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Article
Chemical behavior of grey phases in LiCl molten salt for oxide reduction in pyroprocessing
Chemical stabilities of SrZrO3, BaZrO3, and Sr0.5Ba0.5ZrO3 in LiCl molten salt were investigated to evaluate dissolution properties of Sr and Ba in grey phases of spent nuclear fuels during oxide reduction. Sr in...
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Article
Electrochemical properties of noble metal anodes for electrolytic reduction of uranium oxide
Noble metals (Rh, Pd, Ir, and Au) were investigated as O2-evolving anodes for electrolytic reduction of UO2 in LiCl–Li2O molten salt to replace Pt anodes, which are gradually consumed owing to Li2PtO3 layer forma...
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Article
Distillation characteristics of LiCl–Li2O electrolyte for UO2 electrolytic reduction process
As a process improvement, the distillation and recovery of the salts used in UO2 electrolytic reduction is required. The basic characteristics of the distillation of a LiCl–Li2O electrolyte containing UO2 pellets...
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Article
Carbon anode with repeatable use of LiCl molten salt for electrolytic reduction in pyroprocessing
Carbon was investigated as an anode material for electrolytic reduction in pyroprocessing. UO2 was successfully reduced to U repeatedly using the carbon anode and the LiCl molten salt could be reused. While reusi...
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Article
Production of uranium metal via electrolytic reduction of uranium oxide in molten LiCl and salt distillation
Recovery of metallic uranium has been achieved by electrolytic reduction of uranium oxide in a molten LiCl–Li2O electrolyte at 650 °C, followed by the removal of the residual salt by vacuum distillation at 850 °C...
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Article
Electrochemical behavior of liquid Sb anode system for electrolytic reduction of UO2
A liquid Sb anode was investigated in this study to evaluate its ability to promote the electrolytic reduction of UO2. The liquid Sb anode consumed O2− ions to convert UO2 into metallic U during electrolytic redu...
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Article
Anaerobic ammonia-oxidation coupled with Fe3+ reduction by an anaerobic culture from a piggery wastewater acclimated to NH4 +/Fe3+ medium
The oxidation of ammonia coupled with the reduction of iron is a unique pathway mostly reported in soils and sediments. An anaerobic sludge from a piggery wastewater treatment plant had been acclimated to an NH+/...
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Article
Quantitative analysis of the trophic groups with a fluorescence in situ hybridization (FISH) and the competitive kinetics of a propionate enriched anaerobic culture
An anaerobic culture had been enriched with propionate, which was a critical compound inhibiting the total anaerobic process when significantly accumulated. In addition, the distribution of the trophic groups ...