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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/10048


    Title: Oxidation of printed circuit board wastes in supercritical water
    Authors: Chien,Yi-Chi;Wang, H. Paul;Lin, Kuen-Song;Yang, Y. W.
    Contributors: 輔英科技大學 環境工程與科學系
    Keywords: supercritical water;printed circuit board;EXAFS
    Date: 2000-12
    Issue Date: 2010-11-17 14:54:08 (UTC+8)
    Abstract: A feasibility study for oxidation of printed circuit board wastes with NaOH in supercritical water has been investigated. Experimentally, Br species in the printed circuit board resin was abstracted by sodium cations and the destruction efficiency of the waste was enhanced in the supercritical water oxidation (SCWO) process. By X-ray diffraction (XRD) spectroscopy, Cu2O, CuO, and Cu(OH)2 were found in the SWCO solid residue of the printed circuit board wastes. The extended X-ray absorption fine structural (EXAFS) spectra indicated that the bond distance of Cu–O in the residue was 1.87 Å with a coordination number of 2.61. Since the Cu–Br species was not observed by XRD and EXAFS spectroscopies, one may eliminate the possibility that the copper was involved in the abstraction of bromine species from the resin matrix in the SCWO process.
    Relation: Water Research,Volume 34, Issue 17, Pages 4279-4283
    Appears in Collections:[環境工程與科學系] 期刊論文

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