Phase Chemistry Study Of Products From The Vitrification Processes Asharc And Deglor

AshArc and Deglor are two new complementary vitrification processes for residues from incineration of municipal solid waste. The hazardous fly ash and bottom ash are converted into a glassy product, a heavy metal salt fraction, a metal fraction and an off-gas. AshArc is a reductive melting process based on DC arc furnace technology, whereas the Deglor process is based on a glass tank furnace with a more oxidizing gas atmosphere. Samples from pilot and technical scale operations of both processes were analyzed in detail using methods from petrography and chemical analysis by electron microprobe and X-ray fluorescence. Both processes produce homogenous glassy melts with variable amounts of metal-rich minute inclusions.