Abstract

This study examines the impact of chlorine and glass additives (SiO2 and B2O3) on heavy metal volatilization during vitrification of simulated Municipal Solid Waste Incineration (MSWI) fly ashes. Different simulated MSWI fly ash compositions were subjected to chloride volatilization, revealing that treating MSWI fly ash with Cl increases heavy metal volatilization especially Pb and Cu to about 40% and 20% respectively. Incorporating glass additives into fly ash with chlorine increases Pb volatilization by almost 80%, and Cu by 50%, and enables non-volatile Cd and Zn to vaporize.

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