抄録
Municipal solid waste incinerator (MSWI) fly and bottom ashes were vitrified at about 1450°C, for the first time, using electolysis gas. Vitrification of pelletized fly ash (fly ash + water glass) results in decrease in leaching of toxic heavy metals to much below the Korean regulatory limit value, though melted fly ash was a poor vitrified product having dark grey appearance As the vitrified ash product of bottom ash and its mixture with fly ashes were found to be non-hazardous in nature and glassy in appearance, they could be considered as construction and road building material in future.