Vitrification of Iron Oxide Rich Sludge Resulted from the Groundwater Treatment as New Glass Ceramic Materials

Résumé

This paper offers a new solution to vitrify the sludge resulted from washing the filters used for iron removal phase of the groundwater treatment process. The new glass ceramic materials, obtained after heat treatment at three different temperatures: 800, 900 and 1000 ^oC were characterized in terms of dimensional stability after firing, apparent density and porosity, hydrolytic stability and iron ions immobilization capacity. The effect of the calcined sludge amount upon  the mentioned properties was analysed.