scholarly journals Citizens guide to the Waste Isolation Pilot Plant Compliance Certification Application to the EPA

1996 ◽  
Author(s):  
Keyword(s):  
Pilot Plant ◽  
Waste Isolation Pilot Plant ◽  
Compliance Certification ◽  
Compliance Certification Application

Establishment of Uncertainty Ranges and Probability Distributions of Actinide Solubilities for Performance Assessment in the Waste Isolation Pilot Plant

2010 ◽  
Vol 1265 ◽  
Author(s):  
Yongliang Xiong ◽  
Jim Nowak ◽  
Laurence H. Brush ◽  
Ahmed E. Ismail ◽  
Jennifer Long
Keyword(s):  
Ionic Strength ◽  
Performance Assessment ◽  
Oxidation State ◽  
Pilot Plant ◽  
Probability Distributions ◽  
Waste Isolation Pilot Plant ◽  
Activity Coefficient Model ◽  
Binary Mixing ◽  
Compliance Certification ◽  
Compliance Certification Application

AbstractThe Fracture-Matrix Transport (FMT) code developed at Sandia National Laboratories solves chemical equilibrium problems using the Pitzer activity coefficient model with a database containing actinide species. The code is capable of predicting actinide solubilities at 25 °C in various ionic-strength solutions from dilute groundwaters to high-ionic-strength brines. The code uses oxidation state analogies, i.e., Am(III) is used to predict solubilities of actinides in the +III oxidation state; Th(IV) is used to predict solubilities of actinides in the +IV state; Np(V) is utilized to predict solubilities of actinides in the +V state. This code has been qualified for predicting actinide solubilities for the Waste Isolation Pilot Plant (WIPP) Compliance Certification Application in 1996, and Compliance Re-Certification Applications in 2004 and 2009.We have established revised actinide-solubility uncertainty ranges and probability distributions for Performance Assessment (PA) by comparing actinide solubilities predicted by the FMT code with solubility data in various solutions from the open literature. The literature data used in this study include solubilities in simple solutions (NaCl, NaHCO3, Na2CO3, NaClO4, KCl, K2CO3, etc.), binary mixing solutions (NaCl+NaHCO3, NaCl+Na2CO3, KCl+K2CO3, etc.), ternary mixing solutions (NaCl+Na2CO3+KCl, NaHCO3+Na2CO3+NaClO4, etc.), and multi-component synthetic brines relevant to the WIPP.

scholarly journals Scenario development for the Waste Isolation Pilot Plant Compliance Certification Application

2000 ◽  
Vol 69 (1-3) ◽  
pp. 129-149 ◽  
Author(s):  
D.A Galson ◽  
P.N Swift ◽  
D.R Anderson ◽  
D.G Bennett ◽  
M.B Crawford ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Scenario Development ◽  
Waste Isolation Pilot Plant ◽  
Compliance Certification ◽  
Compliance Certification Application

Problems With the Spallings Model in the Compliance Certification Application of the Waste Isolation Pilot Plant

1997 ◽  
Vol 506 ◽  
Author(s):  
William W.-L. Lee
Keyword(s):  
Performance Assessment ◽  
Pilot Plant ◽  
Waste Isolation Pilot Plant ◽  
Compliance Certification ◽  
Compliance Certification Application

This paper questions the spallings model in the performance assessment supporting the compliance certification application (CCA) of the Waste Isolation Pilot Plant (WIPP). Spallings release is one of the dominant release pathways.

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