Journal
CERAMICS INTERNATIONAL
Volume 37, Issue 7, Pages 2437-2444Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2011.05.088
Keywords
Incinerator ash; Thermal plasma technology; Glass-ceramics
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Funding
- National Science Council of ROC
- Institute of Nuclear Energy Research, ROC [NSC95-2221-E027-057-MY2]
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This research employed two thermal plasma melting systems and vitrification technology to treat incinerator ash. The melted slag was used for the production of glass-ceramics via powder sintering and heat treatment. When using the pilot-scale plasma molten system, the melt was rapidly quenched in water to yield glassy slag. The properties of quenched slag glass-ceramics were superior to that glass-ceramics produced by slowly cooling the slag with air. The glass-ceramics with the best physical/mechanical properties and chemical resistance was produced by heat treatment at 1150 degrees C for 2 h. Diopside and gehlenite were formed as the major crystalline phases. Glass-ceramics produced from incinerator ash demonstrate great potential for reutilization as non-porous or water permeable materials. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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