Studies on Corrosion of Simulated Nuclear Waste Glasses Under Varying Physical and Chemical Environments

Authors

  • Tanmoy Das  Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, West Bengal, India

Keywords:

Radioactive Waste, Safe Immobilization, Glass Matrix, Leaching, Corrosion.

Abstract

Leaching investigations of nuclear waste glasses are significant since they will be buried for an extended length of time. In the Phosphate systems, glasses were melted. We were able to melt the glass at significantly lower temperatures (even at 750 C) with a soaking duration of 30 min-1 hr, which had previously been reported to be melted at temperatures above 1000°C. Lead Iron Phosphate (LIP) glasses are a subset of this system of glasses; the influence of the specific source of lead as a modifier was also discernible. LIP glasses provide various benefits, including a decreased aqueous corrosion rate and a lower processing temperature. Lead-iron phosphate (LIP) glasses are a promising new waste form for the long-term immobilization of both high-level defence and high-level commercial radioactive waste. LIP glasses have a number of benefits, including a reduced aqueous corrosion rate, a lower processing temperature, and so on. The lower the glass processing because the glass will be used to combine nuclear waste with some of the extremely volatile fission products. The higher the temperature, the better the glasses melt. The pH measurement of the leachate solution at ambient temperature exhibits intriguing and regular fluctuations ranging from 6.43 to 8.18. The results are consistent with previous authors' observed changes in equilibrium pH with changing leaching period. The Soxhlet leaching investigation of such glasses reveals lead (Pb*) to be a preferable contender as a modifier towards leach resistance. The findings are supported by the ionic size, ionic radius, and hence ionic potential of the modifier ions introduced into the glass structure.

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International Journal of Scientific Research in Science and Technology

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Published

2019-04-30

Issue

Volume 6, Issue 2, March-April-2019

Section

Research Articles

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[1]
Tanmoy Das, " Studies on Corrosion of Simulated Nuclear Waste Glasses Under Varying Physical and Chemical Environments , International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011, Volume 6, Issue 2, pp.978-993, March-April-2019.