Review

  • Journal of Nuclear Fuel Cycle and Waste Technology
  • Volume 2(3); 2004
  • Article

Journal of Nuclear Fuel Cycle and Waste Technology 2004;2(3):165-174. Published online: Sep, 30, 2004

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Characteristics of Vitrification Process for Mixture of Simulated Radioactive Waste Using Induction Cold Crucible Melter

  • Cheon-Woo Kim ; Kyung-Hwa Yang ; Byoung-Chul Park ; Seung-Chul Park ; Tae-Won Hwang ; Jong-Kil Park ; Sang-Woon Shin ; Jong-Hyun Ha and Myung-Jae Song
Abstract

In order to simultaneously vitrify the ion exchange resin(IER) and combustible dry active waste(DAW) generated from Korean nuclear power plants, a vitrification pilot test was conducted using an induction cold crucible melter(CCM). The energy necessary for startup of the glass using a Ti-ring was evaluated as about 290 kWh. The power supplied from a high frequency generator to melt the glass properly was ranged from 160 to 190 kW without any interruption. When the mixture of the IER and DAW was fed into the CCM, the concentration of CO was lowered up to 1/40 compared to feeding the IER solely. It may be caused by the DAW which can produce about 1.8 times higher heat compared to the IER. When the swelling phenomenon occurred in the glass melt, the concentration of NO2, oxidizing gas, was higher than NO, reducing gas. Total feed amounts of the IER and DAW were 368 and 751 kg, respectively. And then, about 74 of volume reduction factor was achieved.

Keywords

Vitrification,DAW,IER,Ignition,Swelling