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

1 , , , ,

Chemosphere

Elsevier BV

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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.

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      Affiliations
      [1 ] Institute of Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan, ROC. twcheng@ntut.edu.tw
      Journal
      Chemosphere
      Chemosphere
      Elsevier BV
      0045-6535
      0045-6535
      Aug 2007
      : 68
      : 10
      17412393 S0045-6535(07)00299-8 10.1016/j.chemosphere.2007.02.046

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