The high cost of landfilling municipal waste incineration slag & ash makes the inertization process by vitrification of these materials economically viable. A chemically stable glass can be obtained by melting these two waste materials after deferrization & grinding, starting from a mixture of 60wt% ash & 40wt% slag (maximum limit for ash content). An increase of the slag content improves the melting behaviour markedly. The obtained glass has a composition similar to a calcium oxide enriched basalt & can be used to produce insulating building materials similar to foam glass & expanded clay.
Origin
Unknown
Journal Title
Rivista Staz Sper Vetro 33 4 2003 27-30
Sector
Special Glass
Class
S 3289