The possibility to recycle solid residues of the municipal waste incineration into a ceramic tile body

The feasibility of utilising solid residues of the municipal wastes inciner ation such as grate (bottom) ash and electrofilter and sleeve filter fly as h, in combination with a porcelain stoneware body, in the preparation of ti les has been investigated. While the chemical, mineralogical, thermal and r heological characterisation of the waste raw materials carries out some pro blems arising by using fly ash, these seem to be overcome with the bottom a sh. The introduction of up to 20 wt% of this powder into the ceramic body d oes not substantially change the mineralogical and thermal behaviour of the product. (C) 2001 Kluwer Academic Publishers.