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The effects of silicic acid, aluminate ion activity and hydrosilicate gel development on the dissolution rate of a simulated British Magnox waste glass

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Abstract

The dissolution rate of a simulated Magnox waste glass has been investigated in single-pass flow-through experiments designed to investigate the role of Al and Si in the dissolution process. The results indicate that both Al and Si species suppress the rate of dissolution. These effects may be modelled using a combined Al/Si affinity term in a conventional glass dissolution rate law. Aluminium species may also play an inhibitory role when present at relatively high solution activities. In Si-rich alkaline media, the concentration of aluminium is controlled to very low levels by the development of secondary aluminosilicate phases. Removal of Al by secondary phase precipitation results in dissolved Al activities below that required to reach ‘saturation’ with respect to the glass.

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References

  1. A. C. Lasaga in Kinetics of Geochemical Processes ed. A. C. Lasaga and R. J. Kirkpatrick, Reviews in Mineralogy 8, chapter 4, p. 135–169 (1981).

    Article  CAS  Google Scholar 

  2. P. Aagaard and H. C. Helgeson, Am. J. Sci. 282 (1982) p. 237–285.

    Article  CAS  Google Scholar 

  3. A. C. Lasaga in Chemical Weathering Rates of Silicate Minerals, eds. A. F. White and S. L. Brantley, Reviews in Mineralogy 31, chapter 2, p. 23–81 (1995).

    Article  CAS  Google Scholar 

  4. B. Grambow, Mat. Res. Symp. Proc. Vol. 44 (1985), p. 209–216.

    Google Scholar 

  5. W. L. Bourcier, D. W. Peiffer, K. G. Knauss, K. D. McKeegan and D. K. Smith, Mat. Res. Symp. Proc. Vol. 176 (1990), p. 209–216.

    Article  CAS  Google Scholar 

  6. S. Gin, Mat. Res. Symp. Proc. Vol. 412 (1996), p. 189–196.

    Article  CAS  Google Scholar 

  7. V. Daux, C. Guy, T. Advocat, J. L. Crovisier and P. Stille, Chemical Geology Vol. 142 (1997) p. 109–126.

    Article  CAS  Google Scholar 

  8. T. Advocat, J. L. Chouchan, J. L. Crovisier, C. Guy, V. Daux, C. Jegou, S. Gin and E. Vernaz, Mat. Res. Symp. Proc. Vol. 412 (1998), p. 63–70.

    Google Scholar 

  9. B. P. McGrail, W. L. Ebert, A. J. Bakel and D. K. Peeler, Journal of Nuclear Materials, Vol. 249 (1997), p. 175–189.

    Article  CAS  Google Scholar 

  10. ASTM, Standard Test Methods for Determining the Chemical Durability of Nuclear Waste Glasses: The Product Consistency Test (PCT), ASTM C 1285-94, Annual Book of ASTM standards, Philadelphia, PA (1994).

    Google Scholar 

  11. D. L. Parkhurst, U. S. Geological Survey, Water-Resources Investigations Report 95-4227 (1995).

    Google Scholar 

  12. P. K. Abraitis, D. J. Vaughan, F. R. Livens, J. Monteith, D. P. Tnivedi and J. S. Small, Mat. Res. Symp. Proc. Vol. 412 (1998), p. 47–54.

    Google Scholar 

  13. B. F. L. Smith in Clay Mineralogy: Spectroscopic and Chemical Determinative Methods. ed. M. J. Wilson, chapter 9, p. 331–357 (1994).

  14. P. Van Iseghem, T. Amaya, Y. Suzuki and H. Yamamoto, Journal of Nuclear Materials, Vol. 190 (1992), p. 269–276.

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Earth Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK

    P. K. Abraitis

  2. Applied Geology and Geochemistry Department, Pacific Northwest National Laboratory, Richland, WA, 99352, USA

    B. P. McGrail

  3. British Nuclear Fuels plc., Environmental Assessments, R002, Risley, Warrington, WA3 6AS, UK

    D. P. Trivedi

Authors
  1. P. K. Abraitis
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  2. B. P. McGrail
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  3. D. P. Trivedi
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Correspondence to P. K. Abraitis.

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Abraitis, P.K., McGrail, B.P. & Trivedi, D.P. The effects of silicic acid, aluminate ion activity and hydrosilicate gel development on the dissolution rate of a simulated British Magnox waste glass. MRS Online Proceedings Library 556, 401 (1998). https://doi.org/10.1557/PROC-556-401

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