Project Title : Foaming in Radioactive Waste Treatment and Immobilization Processes

Foaming in Radioactive Waste Treatment and Immobilization Processes

“Foaming and Antifoaming in Radioactive Waste Pretreatment and Immobilization”

The objective of this research is to develop a fundamental understanding of the physico-chemical mechanisms that cause foaminess in the DOE High Level (HLW) and Low Activity radioactive waste separation processes and to develop and test advanced antifoam/defoaming agents. Antifoams developed for this research will be tested using simulated defense HLW radioactive wastes obtained from the Hanfor...

eMinerals: Science Outcomes enabled by new Grid Tools

In the eMinerals project we use computational modelling to research mineralogical processes at an atomistic level, providing information on transport and immobilisation processes of pollutants, including radioactive waste. Prior to the eMinerals project most calculations where undertaken on so-called model systems. With the new grid tools, available within the eMinerals project, we are instead ...

Crystal Chemistry of Immobilization of tetravalent Ce and Se in ceramic matrix of sodium zirconium phosphates

The safe and effective management of radioactive waste has been given utmost importance from the very inception of nuclear industry in India and it covers the entire range of activities from handling, treatment, conditioning, transport, storage and finally disposal. Radioactive waste is generated at various stages of the nuclear fuel cycle, which includes the mining and milling of uranium ore, ...

Behavior of technetium in nuclear waste vitrification processes

Nearly 100 tests were performed with prototypical melters and off-gas system components to investigate the extents to which technetium is incorporated into the glass melt, partitioned to the off-gas stream, and captured by the off-gas treatment system components during waste vitrification. The tests employed several simulants, spiked with 99mTc and Re (a potential surrogate), of the low activit...