Abstract
Asbestos waste has been disposed of in landfills for many years. However, since landfills will be unable to accept more waste in 2.5 to 4.5 years, we need new disposal methods for asbestos. This study reports the results of laboratory experiments that examined the disposal of asbestos and waste that contains asbestos by melting with fly ash and ash at temperatures below 1500°C.
The proportions of chrysotile, ash and fly ash influenced the melting of chrysotile in a test of 30 minutes at a temperature of 1300°C. The ash used in this experiment included much Fe2O3, and the fly ash used in this experiment had a lot of CaO. SiO2 also existed in the ash, but the amount depended on the type and volume of waste. Chrysotile contains much Si. Melting is possible when the proportions of SiO2, Fe2O3 and CaO are suitable. Using ash and fly ash, we were able to melt 40% pure chrysotile.
