Tracking of copper species in incineration fly ashes

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

研究成果: Article

12 引文 (Scopus)

摘要

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.

原文English
頁(從 - 到)539-542
頁數4
期刊Journal of Hazardous Materials
138
發行號3
DOIs
出版狀態Published - 2006 十二月 1

指紋

Coal Ash
Incineration
Waste incineration
incineration
Fly ash
fly ash
Copper
Electrostatic precipitators
copper
Static Electricity
Boilers
Hot Temperature
X ray absorption
X-Rays
Photoelectron Spectroscopy
Waste heat
Flue gases
Leaching
X-ray spectroscopy
Toxicity

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

引用此文

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abstract = "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.",
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Tracking of copper species in incineration fly ashes. / Hsiao, M. C.; Wang, Hong-Paul; Chang, Juu-En; Peng, C. Y.

於: Journal of Hazardous Materials, 卷 138, 編號 3, 01.12.2006, p. 539-542.

研究成果: Article

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T1 - Tracking of copper species in incineration fly ashes

AU - Hsiao, M. C.

AU - Wang, Hong-Paul

AU - Chang, Juu-En

AU - Peng, C. Y.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - 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.

AB - 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.

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