Kinetics of pyrite to pyrrhotite reduction by hydrogen in calcite buffered solutions between 90 and 180°C: Implications for nuclear waste disposal

2010 ◽  
Vol 74 (10) ◽  
pp. 2894-2914 ◽  
Author(s):  
Laurent Truche ◽  
Gilles Berger ◽  
Christine Destrigneville ◽  
Damien Guillaume ◽  
Eric Giffaut
Keyword(s):  
Nuclear Waste ◽  
Waste Disposal ◽  
Nuclear Waste Disposal ◽  
Kinetics Of

Modelling the Activity of Sulphate-Reducing Bacteria and the Effects on Container Corrosion in an Underground Nuclear Waste Disposal Vault

1999 ◽  
Vol 556 ◽  
Author(s):  
Fraser King ◽  
Miroslav Kolar ◽  
Simcha Stroes-Gascoyne ◽  
Peter Bellingham ◽  
James Chu ◽  
...  
Keyword(s):  
Nuclear Waste ◽  
Waste Disposal ◽  
Fractured Rock ◽  
Nuclear Waste Disposal ◽  
Sulphate Reduction ◽  
Sulphate Reducing Bacteria ◽  
Transport Barriers ◽  
Backfill Materials ◽  
Reducing Bacteria ◽  
Kinetics Of

AbstractA mathematical model has been developed to predict the extent of sulphate reduction by sulphate-reducing bacteria (SRB) in an underground nuclear waste disposal vault and the consequences for corrosion of the waste package. The model is based on a series of massbalance equations that describe the kinetics of sulphate reduction by two types of SRB (one organotrophic and one chemoheterotrophic), the growth and death of SRB, the supply and consumption of nutrients (acetate and hydrogen) and reactants (SO42−) and the consumption of sulphide by precipitation with aqueous Fe(II) or by container corrosion. The disposal vault is described by a series of 1-D mass-transport barriers representing the buffer and backfill materials and fractured rock. The model can also be used to simulate the effects of γ-radiation and desiccation of the buffer and backfill materials on the extent of microbial activity.

scholarly journals BNFL and Nirex in deep water over nuclear waste disposal plans

Nature ◽  
1987 ◽  
Vol 329 (6137) ◽  
pp. 278-278
Author(s):  
Kathy Johnston
Keyword(s):  
Nuclear Waste ◽  
Waste Disposal ◽  
Deep Water ◽  
Nuclear Waste Disposal
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