PROCESS FOR RECYCLING FLY ASH WITH A GIVEN HUMIDITY IN A COMBUSTION PLANT FOR THE DESTRUCTION OF ORGANIC NOXIOUS MATTER IN THE FLY ASH

摘要

In a process for recycling organic pollutants contained in the fly ash from an incinerator into the latter for the destruction of dioxins and furans in filter cakes formed, for example, by solid/liquid separation from fly ash combined with scrubbing fluid, as residues from a waste incinerator, the pollutants are embedded before the recycle into a ceramic matrix which remains essentially stable dimensionally even under the mechanical stress in the incincerator until after the temperature action due to the combustion of the slag. For this purpose, the filter cakes are adjusted to a defined residual moisture content, subsequently mixed with a defined fraction of bentonite, heated and then recycled at a defined geometry into the incinerator furnace.