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    题名: Mechanochemically induced synthesis of anorthite in MSW fly ash with kaolin
    作者: Wu, Ching-Wei;Sun, Chang-Jung;Gau, Sue-Huai;Hong, Cheng-Lin;Chen, Cheng-Gang
    关键词: Municipal solid waste;incinerator fly ash;Anorthite;Mechanical milling;Amorphization;Temperature program of sintering.
    日期: 2013-01-15
    上传时间: 2016-04-22 13:43:27 (UTC+8)
    出版者: Elsevier BV
    摘要: The process of mechanical milling has been found to effectively stabilize heavy metals in municipal
    solid waste incinerator (MSWI) fly ash, as well as to restrain the evaporation of heavy metals during
    thermo-treatment. This method is adopted in this study and the composition and degree of amorphization
    adjusted to improve the efficiency of crystalline anorthite synthesis. Different milling times (1, 5, 10 and
    20 h) and different sintering temperatures (900, 950, 1000, 1100, 1200 and 1300 ◦C) are utilized. The
    extracted fly ash and kaolin (KEFA) were mixed to simulate an anorthite composite. The experimental
    results indicate that the degree of amorphization of the KEFA increased as the milling time increased.
    Furthermore, the synthesis of crystalline anorthite increased as the degree of amorphization increased.
    The milling process allowed a reduction in the synthesization temperature from 1300 ◦C to 950 ◦C. The
    heavy metals are sealed in during the liquid sintering phase, which reduces the amount of heavy metals
    released from the sintered specimens.
    關聯: Journal of Hazardous Materials 244-245, pp.412-420
    DOI: 10.1016/j.jhazmat.2012.11.052
    显示于类别:[水資源及環境工程學系暨研究所] 期刊論文

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