Removal of Co-Present Cr(VI) and Cu(II) by Fe⁰

Abstract:

Zero-valent iron (Fe0) as one kind of redox material has widely been used to remove heavy metals from aqueous environments due to its low cost, simplicity and reliability. In this paper, interaction of Cr(VI) with Cu(II) in Fe0-H2O systems was studied in order to understand better the performance of Fe0 in wastewater containing multiple heavy metals. Results showed that Cr(VI) had inhibitory impact on Cu(II) removal by Fe0, resulting from competition of electrons generated from Fe0, while Cu(II) obviously enhanced the removal of Cr(VI), which could result from redox of Cr(VI) with Fe2+ from reaction of Fe0 with Cu(II) and then formed weak acid environments which were favorable for the removal of Cr(VI).

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 1624-1627
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.1624
• Online since: December 2012
• Authors: Pin Hua Rao*, Wenqi Zhang, Qi Zhou
• Keywords: Cr(VI), Cu(II), Interaction, Zero Valent Iron

References

[1] A. Baral and R.D. Engelken: Environmental Science & Policy. Vol. 5(2002), p.121

[2] K.J. Sreeram and T. Ramasami: Resources, Conservation and Recycling. Vol. 38(2003), p.185.

[3] H. Honma and S. Miura: Surface and Coatings Technology. Vol. 169-170(2003), p.91.

[4] C.A. Basha, N.S. Bhadrinarayana, N. Anantharaman and K.M. Meera Sheriffa: Journal of Hazardous Materials. Vol. 152(2008), p.71.

DOI: 10.1016/j.jhazmat.2007.06.069

[5] E. Katsou, S. Malamis and K. J. Haralambous: Chemosphere. Vol. 82(2011), p.557.

[6] L. Charerntanyarak: Water Science and Technology. Vol. 39(1999), p.135.

[7] P.H. Rao, M.S.H. Mak, T.Z. Liu, K.C.K. Lai and I.M.C. Lo: Chemosphere. Vol. 75(2009), p.156

[8] R. Rangsivek and M.R. Jekel: Water Research. Vol. 39(2005), p.4153.

[9] H.L. Lien and R.T. Wilkin: Chemosphere. Vol. 59(2005), p.377.