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    Please use this identifier to cite or link to this item: http://ir.fy.edu.tw/ir/handle/987654321/9887


    Title: Effect of [Fe2+/total metal] on Treatment of Heavy Metals from Laboratory Wasteliquid by Ferrite Process
    Authors: Huang,Yuh-Jeen;Tu, Chiu-Hui;Chien,Yi-Chi;Chen, Hung-Ta
    Contributors: 輔英科技大學 環境工程與科學系
    Keywords: Ferrite;Heavy metals;XRD;XANES;Laboratory wasteliquid
    Date: 2006-12
    Issue Date: 2010-11-15 16:08:02 (UTC+8)
    Abstract: In this study, the X-ray absorption near-edge structure shows that poisonous Cr6+ in the laboratory wasteliquid were reduced to Cr3+ by adding Fe2+ at [Fe2+/total metal, mole ratio higher than 4:1. The X-ray diffraction analysis shows that greater the [Fe2+/total metal] mole ratios used (such as 6:1, 10:1, 20:1 and 30:1), the more spinel-structured ferrites were formed (0.26, 0.30, 0.48 and 0.59). When [Fe2+/total metal] mole ratio was larger than 20:1, the saturation magnetization and coercive field were about 5.21 emu/g and 6.2 kOe, respectively. The ferrite precipitates could be recovered as magnitude materials. However, the TCLP test result was beyond the standard of EPA when the [Fe2+/total metal] mole ratio was 30:1. The optimum operation for the laboratory wasteliquid by ferrite process in the [Fe2+/total metal] mole ratio was 20:1.
    Relation: Radiation Physics and Chemistry,Volume 75, Issue 11, Pages 1884-1887
    Appears in Collections:[環境工程與科學系] 期刊論文

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