The possibility of recycling the Municipal Solid Wastes Incinerated (MSWI) bottom ash by its incorporation in ceramic tiles was investigated. The MSWI bottom ash was introduced both in untreated (previous deironization) and vitrified condition. The sintering of the different products was investigated by determining water absorption and linear shrinkage. To evaluate possible variations due to the presence of different amount of bottom ash, mineralogical and microstructural examinations by quantitative X-ray diffraction and scanning electron microscopy, were performed. While the untreated bottom ash, till an amount of 5wt%, did not seem to affect the above characteristics of selected materials, the vitrified bottom ash, 5-10wt%, as strong fluxing agent, promoted the sintering of porcelain stoneware. Leaching results allow to assert that the fired samples are not dangerous.
E. Rambaldi, L. Esposito, F. Andreola, L. Barbieri, I. Lancellotti, I. Vassura (2010). THE RECYCLING OF MSWI BOTTOM ASH IN SILICATE BASED CERAMIC. CERAMICS INTERNATIONAL, 36, 2469-2476 [10.1016/j.ceramint.2010.08.005].
THE RECYCLING OF MSWI BOTTOM ASH IN SILICATE BASED CERAMIC
VASSURA, IVANO
2010
Abstract
The possibility of recycling the Municipal Solid Wastes Incinerated (MSWI) bottom ash by its incorporation in ceramic tiles was investigated. The MSWI bottom ash was introduced both in untreated (previous deironization) and vitrified condition. The sintering of the different products was investigated by determining water absorption and linear shrinkage. To evaluate possible variations due to the presence of different amount of bottom ash, mineralogical and microstructural examinations by quantitative X-ray diffraction and scanning electron microscopy, were performed. While the untreated bottom ash, till an amount of 5wt%, did not seem to affect the above characteristics of selected materials, the vitrified bottom ash, 5-10wt%, as strong fluxing agent, promoted the sintering of porcelain stoneware. Leaching results allow to assert that the fired samples are not dangerous.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
