The activity started from investigations on the characteristics of the main components of FA deriving from different Municipal Waste Incinerator Plant (MWIP) and led to a tentative classification of FA. This goal was achieved on the ground of some new timely tests based on the sequential solubilisation of the FA samples in water and acidic solution, whose results correlate with the heavy metals leachability of FA. By the models, it was possible to investigate in details the effect of some main components on pH and the role that Chlorides play on metals mobility. The use of the models allowed finding the conditions for a better and sustainable stabilisation for each class of FA. The results were confirmed at industrial scale.
Physical models of fly ash as a tool for predicting heavy metals mobility and improving the efficiency of stabilisation processes
VALENTINI, GIORGIO;
2011-01-01
Abstract
The activity started from investigations on the characteristics of the main components of FA deriving from different Municipal Waste Incinerator Plant (MWIP) and led to a tentative classification of FA. This goal was achieved on the ground of some new timely tests based on the sequential solubilisation of the FA samples in water and acidic solution, whose results correlate with the heavy metals leachability of FA. By the models, it was possible to investigate in details the effect of some main components on pH and the role that Chlorides play on metals mobility. The use of the models allowed finding the conditions for a better and sustainable stabilisation for each class of FA. The results were confirmed at industrial scale.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
