Progress in Characteristics of Heavy Metals during Melting of Fly Ashes from Municipal Solid Waste Incinerator

Fly ashes from municipal solid waste(MSW)incinerator contain a great deal of toxic heavy metals and their compounds.They are defined as hazardous waste because these fly ashes in having high leaching ratios of heavy metals.Melting technology can effectively control emission of heavy metals in fly ashes from MSW incinerator.It is one of the major techniques of fly ashes innocent treatment.This review introduces the research present status of fly ash melting treatments for MSW incineration at home and abroad,the results of migration and control on heavy metals in fly ash from MSW incinerator during melting process.Meanwhile,the development direction of the stabilization treatment for fly ash from MSW incinerator in the future would be put forward.