Gas Migration from Low-Level Radioactive Waste Repositories in Hard Rocks

1988 ◽  
Vol 82 (1) ◽  
pp. 60-70 ◽  
Author(s):  
Carol Braester ◽  
Roger Thunvik
Keyword(s):  
Radioactive Waste ◽  
Gas Migration ◽  
Low Level ◽  
Hard Rocks ◽  
Radioactive Waste Repositories ◽  
Waste Repositories ◽  
Low Level Radioactive Waste

The Modelling of Gas Migration through Compacted Bentonite Buffers in Radioactive Waste Repositories: the Work of the GAMBIT Club

2003 ◽  
Vol 807 ◽  
Author(s):  
William R Rodwell ◽  
Andrew R Hoch ◽  
Ben T Swift
Keyword(s):  
Experimental Data ◽  
Radioactive Waste ◽  
Geological Environment ◽  
Gas Migration ◽  
Compacted Bentonite ◽  
Radioactive Waste Repositories ◽  
Water Saturated ◽  
Waste Repositories ◽  
Modelling Approaches

ABSTRACTUse of compacted bentonite buffers is frequently planned in radioactive waste repositories to isolate waste canisters from the geological environment. When gas is generated from the wastes or their containers, it will need to migrate through the bentonite if pressure rises local to the canisters are to be avoided. Assessment of the effect of gas produced from waste canisters in bentonite buffers requires both experimental data on and models of gas migration through initially water-saturated bentonite. Several different approaches to modelling gas migration through bentonite are described. Some example comparison of model results with experimental data are provided, and some general discussion about the modelling approaches is offered.

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