Tracking of copper species in incineration fly ashes

M. C. Hsiao, H. Paul Wang, Juu En Chang, C. Y. Peng

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)


Speciation of copper in the incineration waste heat boiler (HB) and the down stream electrostatic precipitator (EP) fly ashes during the flue gas cooling down (1123 → 473 K) has been studied by X-ray absorption near edge structural (XANES) spectroscopy in the present work. Copper species such as Cu(OH)2 (59-67%), CuCl2 (5-12%), CuO (24-26%), and a small amount of CuS (3-4%) in fly ashes were determined by semi-quantitative analyses of the XANES spectra. In the toxicity characteristics leaching procedure (TCLP) tests, about 83 and 20% of copper were leached from the EP and HB fly ashes, respectively. The relatively high leachability of copper for the EP fly ash might be due to the fact that CuCl2 was enriched on the surfaces as observed by X-ray photoelectron spectroscopy (XPS). On the contrary, CuCl2 was mainly encapsulated in the HB fly ashes.

頁(從 - 到)539-542
期刊Journal of Hazardous Materials
出版狀態Published - 2006 12月 1

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 廢物管理和處置
  • 污染
  • 健康、毒理學和誘變


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