Preliminary Performance Assessment of the Engineered Barriers for a Low- and Intermediate-Level Radioactive Waste Repository

1996 ◽  
Vol 116 (1) ◽  
pp. 115-126 ◽  
Author(s):  
Won-Jin Cho ◽  
Jae-Owan Lee ◽  
Pil-Soo Hahn ◽  
Kwan-Sik Chun
Keyword(s):  
Radioactive Waste ◽  
Performance Assessment ◽  
Intermediate Level ◽  
Radioactive Waste Repository ◽  
Waste Repository ◽  
Engineered Barriers ◽  
Intermediate Level Radioactive Waste

Safety Analysis for the Loviisa Low- and Intermediate-Level Radioactive Waste Repository

1997 ◽  
Vol 506 ◽  
Author(s):  
T. Eurajoki ◽  
S. Outa ◽  
T. Routamo
Keyword(s):  
Radioactive Waste ◽  
Sea Level ◽  
Safety Analysis ◽  
Intermediate Level ◽  
Radioactive Waste Repository ◽  
Waste Repository ◽  
Intermediate Level Radioactive Waste

ABSTRACTThe Loviisa low and intermediate level radioactive waste repository is located in southern Finland, at Loviisa NPP site on Hästholmen island, where two VVER-440 reactor units are operated by Imatran Voima Oy (IVO). The repository is excavated in the bedrock, 110 meters below the sea level.

Effect of Redox Conditions on the Sorption of Plutonium onto Geological Materials

2002 ◽  
Vol 713 ◽  
Author(s):  
J.A. Berry ◽  
M. Brownsword ◽  
D.J. Ilett ◽  
C.M. Linklater ◽  
C. Mason ◽  
...  
Keyword(s):  
Experimental Design ◽  
Radioactive Waste ◽  
Performance Assessment ◽  
Geochemical Modelling ◽  
Redox Conditions ◽  
Radioactive Waste Repository ◽  
High Level Radioactive Waste ◽  
Geological Materials ◽  
Waste Repository ◽  
High Level

ABSTRACTThis paper presents the latest results from a programme of generic sorption studies undertaken to increase confidence in data underpinning the performance assessment for a potential high-level radioactive waste repository in Japan. The sorption of plutonium onto basalt and sandstone was studied as a function of redox conditions that ranged from strongly reducing to oxidising. Geochemical modelling was used to aid experimental design and the interpretation of results.

The Sorption of Polonium, Actinium and Protactinium Onto Geological Materials

1999 ◽  
Vol 556 ◽  
Author(s):  
G. M. N. Baston ◽  
J. A. Berry ◽  
M. Brownsword ◽  
T. G. Heath ◽  
D. J. Ilett ◽  
...  
Keyword(s):  
Radioactive Waste ◽  
Performance Assessment ◽  
Room Temperature ◽  
Radioactive Waste Repository ◽  
Geological Materials ◽  
Reducing Conditions ◽  
Chemical Modelling ◽  
Waste Repository

AbstractThis paper describes a combined experimental and modelling programme of generic sorption studies to increase confidence in the performance assessment for a potential highlevel radioactive waste repository in Japan. The sorption of polonium, actinium and protactinium onto geological materials has been investigated. Sorption of these radioelements onto bentonite, tuff and granodiorite from equilibrated de-ionised water was studied under reducing conditions at room temperature. In addition, the sorption of actinium and protactinium was investigated at 60°C. Thermodynamic chemical modelling was carried out to aid interpretation of the results.

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