Share This Article:

Column Leaching for Simulating Heap and In-situ Soil Remediation with Metallic Fenton Reaction

Abstract Full-Text HTML Download Download as PDF (Size:24KB) PP. 33-39
DOI: 10.4236/jmmce.2004.31004    5,427 Downloads   6,871 Views   Citations

ABSTRACT

Metallic Fenton reaction was found to be more effective than classical Fenton reaction in decomposing Pentachlorophenol (PCP) in contaminated soil. The combination of metallic iron and hydrogen peroxide was used in column leaching experiments to simulate heap and in-situ soil remediation. PCP in the contaminated soil was effectively decomposed by 32% in 24 hours leaching tests, and by 41% in 48 hours leaching experiments. PCP destruction was further increased to 52% in the 48 hours leaching by lowering the solution pH to 1.8. Other than ferric oxide and carbon dioxide, no byproducts were found at the end of the reaction.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

H. Lin and H. Luong, "Column Leaching for Simulating Heap and In-situ Soil Remediation with Metallic Fenton Reaction," Journal of Minerals and Materials Characterization and Engineering, Vol. 3 No. 1, 2004, pp. 33-39. doi: 10.4236/jmmce.2004.31004.

References

[1] Barbeni, M., Minero, C. and Pelizzetti, E., 1987, “Chemical degradation of chlorophenols with Fenton’s reagent”, Chemosphere, vol. 16, no.(10-12), pp2225-2237.
[2] Chen, R. and Pignatello, J. J., 1997, “Role of quinone intermediates as electron shuttles in Fenton and photoassisted Fenton oxidations of aromatic compounds”, Environmental Science and Technology, vol. 31, pp2399-2406.
[3] Dorey, R., van Zyl, D. and Kiel, J., 1988, “Overview of heap leaching technology”, in Introduction to Evaluation, Design and Operation of Precious Metal Heap Leaching Projects, edited by D. J. A. van Zyl, I. P. G. Hutchison and J. E. Kiel, Society of Mining Engineers Inc., pp3-22.
[4] Heil, D., Hanson A. and Samani, Z., 1996, “Competitive binding of lead by EDTA in soils and implications for heap leaching remediation”, Radioactive Waste Management and Environmental Restoration, vol. 20, no.(2-3), pp111-127.
[5] Hiskey, J. B., 1985, “Gold and silver extraction: The application of heap leaching cyanidation”, Field Notes, Arizona Bureau of Geology and Mineral Technology, Tucson, vol. 15, no.(4), pp1-5.
[6] Luong H. V. and Lin, H. K., 1999, “Remediation of soil contaminated with organic compounds”, U. S. Patent 5,855,791.
[7] Luong, H. V. and Lin, H. K., 2000, “Controlling Fenton reaction for soil remediation”, Analytical Letters, vol. 33, no.(14), pp3051-3065.
[8] Man, X., 1997, “Removal of lead from contaminated soils by gravity concentration, oxidation leaching and sulfide precipitation”, M. S. thesis, University of Alaska Fairbanks.
[9] Pignatello, J. J., 1992, “Dark and photoassisted Fe+3-catalyzed degradation of chlorophenoxy herbicides by hydrogen peroxide”, Environmental Science and Technology, vol. 26, pp944-951.
[10] Taylor, W. R., 1979, “Ground water quality protection in in situ uranium mines”, in Insitu Uranium Mining and Ground Water Restoration, edited by W. J. Schlitt and D. A. Shock, Society of Mining Engineers, pp1-6.
[11] Thorsad, L. E., 1987, “How heap leaching changed the west”, World Investment News, A Pacific Regency Publication, Vancouver, B. C., February, pp31, 33.
[12] Voelker, B. M. and Sulzberger, B., 1996, “Effects of fulvic acid on Fe(II) oxidation by hydrogen peroxide”, Environmental Science and Technology, vol. 30, pp1106-1114.
[13] York, D. A. and Aamodt, P. L., 1990, “Remediation of contaminated soil using heap leaching mining technology”, Proceedings of Western Regional Symposium on Mining and Mineral Processing Wastes, May 30-June 1, 1990, Berkeley, CA, pp255-259.

  
comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.