Municipal solid waste incinerator residue recycling by thermal processes

The melting technology makes incinerator residues, bottom ash and fly ash, stable and non-toxic. Moreover, this type of treatment allows the melted slag to be used as a resource again. In Japan, the melting process was developed in the 1980ʹs and has been in practical operation at around 24 municipal solid waste (MSW) incineration facilities including scheduled ones. By the melting process, PCDDs/PCDFs in residues are decomposed at a temperature of approximately 1400°C in the furnace and volatile heavy metals are concentrated in the fly ash of the melting process.