Abstract
Lately, various technologies for melting ash are introduced in order to decrease the environmental loads from waste-increation facilities. The fly ash from the melting process contains valuable metals of high volatility such as Pb, Zn and Cd at high concentration. But effective technologies for recycling these metals have not been established. This paper describes the method of recovering heavy metalsselectively from molten fly ash using molecular recognition technology (MRT) system. As a part of this attempt, we have installed a pilot plant of 30kg/h capacity in our premises and conducted Pb recovery tests. The result shows that high-purity lead was recovered. This paper also discusses the mass balance and the estimates of the operating cost based on the pilot test results.
