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Adsorption of Hg0 on the Unburned Carbon with HF Acid Leaching

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DOI: 10.4236/jmmce.2004.31005    2,781 Downloads   3,598 Views   Citations

ABSTRACT

Unburned carbons from fly ash were leached with concentrated HF acid solutions in this study. The mercury adsorption abilities of the treated unburned carbons were examined. Effects of temperature, contact time, preloaded mercury emission and gaseous mercury concentration on adsorption behaviors were investigated. Leached by HF acid solution, unburned carbons were altered both physically and chemically. The influences of structure alteration on adsorption behaviors were also discussed.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

J. Luo, J. Hwang, B. Greenlund and Z. Xu, "Adsorption of Hg0 on the Unburned Carbon with HF Acid Leaching," Journal of Minerals and Materials Characterization and Engineering, Vol. 3 No. 1, 2004, pp. 41-51. doi: 10.4236/jmmce.2004.31005.

References

[1] J.Y.Hwang, X.Sun, Z.Li, “Unburned Carbon from Fly Ash for Mercury Adsorption: I. Separation and Characterization of Unburned Carbon”, Journal of Minerals & Materials Characterization & Engineering, Vol1. No.1, p39-60
[2] Dewey,M.VPI/ALRC Coal Refuse Leach Project Physical Characterization. U.S. Bureau of Mines. Albany, OR, Research Center, 1995
[3] J.Y.Hwang, “Wet Process for Fly Ash Beneficiation”, U.S. Patent 5,047,145 (1991)
[4] JEROME 431-X Mercury Vapor Analyzer Manual
[5] Shendrikar, A.D.; Damle, A.; Gutknect, W.F. “Collection Efficiency Evaluation of Mercury Trapping Media for the SASS Train Impinger System”, U.S. Environmental Protection Agency. U.S. Government Printing Office: Washing, DC, 1984, EPA-600/7-84-089
[6] J.Luo, J.Y.Hwang, “Adsorption of Vapor Phase Mercury on Various Carbons”, Journal of Minerals & Materials Characterization & Engineering, Vol.3, No.1, 2004

  
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