The aim of this work is to show possibilities for recycling solid waste by the vitrification/devitrification technique, mixing municipal bottom ash with glass cullet and steel plant fly ash, and by adding the municipal waste to ceramic bodies used for floor tiles manifacture. Experimental tests were performed investigating thermal, thermomechanical, mechanical, chemical and physical properties, and it has been demonstrated that it is possible to dispose of different kinds of wastes through their valorization as an alternative raw material to produce new coloured and inert glass, glass-ceramic and ceramic materials with good technological properties.