[go: up one dir, main page]
More Web Proxy on the site http://driver.im/ Skip to main content
Log in

Reduction of Cr(VI) by peat and coal humic substances

  • Original Paper
  • Published:
Environmental Chemistry Letters Aims and scope Submit manuscript

Abstract

The reduction of Cr(VI) by humic substances from leonardite and peat was investigated by capillary zone electrophoresis at various pHs. Both humic materials reduced Cr(VI) at pH 5.4, but not at basic pH. The capacity of leonardite humic substances to reduce Cr(VI) was lower than that of peat humic substances. Fe(III) accelerated the reduction of Cr(VI) by peat humic substances, but not by leonardite humic substances. Cr(VI) reduction mechanisms are proposed. The coal humic substances seem more suitable for remediation of Cr(VI)-contaminated sites.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
£29.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price includes VAT (United Kingdom)

Instant access to the full article PDF.

Fig. 1a, b
Fig. 2
Fig. 3

Similar content being viewed by others

Explore related subjects

Discover the latest articles, news and stories from top researchers in related subjects.

References

  • Baraj B, Niencheski LFH, Soares JA, Martinez M, Merkoci A (2000) Comparison of chromium speciation by CZE and ion exchange followed by AAS. Fresenius J Anal Chem 367:12–16

    Article  CAS  PubMed  Google Scholar 

  • Fukushima M, Nakayasu K, Tanaka Sh, Nakamara H (1997) Speciation analysis of chromium after reduction of chromium (VI) by humic acid. Toxicol Environ Chem 62:207–215

    CAS  Google Scholar 

  • Gu B, Chen J (2003) Enhanced microbial reduction of Cr(VI) and U(VI) by different natural organic matter fractions. Geochim Cosmochim Acta 67:3575–3582

    Article  CAS  Google Scholar 

  • Hertkorn N, Permin A, Perminova I, Kovalevskii D, Yudov M, Petrosyan V, and Kettrup A (2002) Comparative analysis of partial structures of a peat humic and fulvic acid using one- and two-dimensional nuclear magnetic resonance spectroscopy. J Environ Qual 31:375–387

    CAS  PubMed  Google Scholar 

  • Kaniansky D, Masar M, Marak J, Bodor R. (1999) Capillary electrophoresis of inorganic anions. J Chromatogr A 834:133–178

    Article  CAS  PubMed  Google Scholar 

  • Kudryavtsev A.V., Perminova I.V., Petrosyan V.S. (2000). Size-exclusion chromatographic descriptors of humic substances. Anal Chim Acta 407:193–202

    Article  CAS  Google Scholar 

  • Palmer CD, Puls RW (1994) Natural attenuation of hexavalent chromium in groundwater and soils. EPA Ground Water Issue EPA/540/5–94/505 October 1994

  • Wittbrodt PR, Palmer CD (1995) Reduction of Cr(VI) in the presence of excess soil fulvic acid. Environ Sci Technol 29:255–263

    CAS  Google Scholar 

  • Wittbrodt PR, Palmer CD (1996a) Reduction of Cr(VI) by soil humic acids. Eur J Soil Sci 47:151–162

    Google Scholar 

  • Wittbrodt PR, Palmer CD (1996b) Effect of temperature, ionic strength, background electrolytes and Fe(III) on the reduction of hexavalent chromium by soil humic substances. Environ Sci Technol 30:2470–2477

    Article  CAS  Google Scholar 

Download references

Acknowledgements

The young-scientist fellowship provided to D.M. Zhilin from INTAS (YSF2001/2–126) is deeply appreciated. The particular thanks are to INTAS officer Ms. Gyll-Murray for friendly collaboration. The research was supported by the GSF funding (Neuherberg, Germany) – FE 75184, BA 31/139166/02/U.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Denis M. Zhilin.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhilin, D.M., Schmitt-Kopplin, P. & Perminova, I.V. Reduction of Cr(VI) by peat and coal humic substances. Environ Chem Lett 2, 141–145 (2004). https://doi.org/10.1007/s10311-004-0085-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10311-004-0085-4

Keywords