کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9585405 | 1505782 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Speciation of copper in a contaminated soil during H3PO4-assisted EKR
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Speciation of copper in a contaminated soil during electrokinetic remediation (EKR) assisted by H3PO4 was studied by in situ X-ray absorption near edge structural (XANES) spectroscopy. The least-square fit of the XANES spectrum showed that CuCO3 (68%) and CuCl2 (32%) were the major copper species in the contaminated soil. In the presence of H3PO4 (40%), most of CuCl2 and about 24% of CuCO3 were dissolved into the aqueous phase. After 90Â min of EKR, at least 30% of Cu(II) ions were transported towards the cathode by electric field. A similar dissolution behavior of copper from the soil with 40% H3PO4 and 2% H2O2 was also observed. Nevertheless, migration of Cu(II) ions to the cathode was highly enhanced in the presence of H3PO4 and H2O2 by EKR for the first 90Â min.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volumes 144â147, June 2005, Pages 311-314
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volumes 144â147, June 2005, Pages 311-314
نویسندگان
S.-H. Liu, H. Paul Wang, M.Y. Yu, Y.-J. Huang, H.-C. Wang,