Vitrification of Combustible Dry Active Waste Generated from Korean Nuclear Power Plants

概要

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In order to develop glass formulation for vitrifying combustible dry active waste (DAW) generated from nuclear power plants of Korea Hydro & Nuclear Power (KHNP) Co., Ltd., promising glass formulation was selected based on glass property model predictions for viscosity, electrical conductivity and leach resistance. Laboratory measurements were conducted to verify the model predictions. Based on the results, the models for viscosity, electrical conductivity, and 7-day product consistency test (PCT) elemental release are accurate for the DAW glass formulation. The glass formulation meets all the KHNP glass property constraints, and use of this glass formulation on the pilot scale was conducted successfully. The process parameters were in the desired ranges. The product quality such as chemical durability, phase stability, etc., was satisfactory.