alexa Production of coloured glass-ceramics from incinerator ash using thermal plasma technology.


Journal of Environmental & Analytical Toxicology

Author(s): Cheng TW, Huang MZ, Tzeng CC, Cheng KB, Ueng TH, Cheng TW, Huang MZ, Tzeng CC, Cheng KB, Ueng TH

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Abstract Incineration is a major treatment process for municipal solid waste in Taiwan. It is estimated that over 1.5 Mt of incinerator ash are produced annually. This study proposes using thermal plasma technology to treat incinerator ash. Sintered glass-ceramics were produced using quenched vitrified slag with colouring agents added. The experimental results showed that the major crystalline phases developed in the sintered glass-ceramics were gehlenite and wollastonite, but many other secondary phases also appeared depending on the colouring agents added. The physical/mechanical properties, chemical resistance and toxicity characteristic leaching procedure of the coloured glass-ceramics were satisfactory. The glass-ceramic products obtained from incinerator ash treated with thermal plasma technology have great potential for building applications. This article was published in Chemosphere and referenced in Journal of Environmental & Analytical Toxicology

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