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Development of A Model for Handling the Movement of Redox Fronts and Other Sharp Reaction Fronts

Published online by Cambridge University Press:  25 February 2011

Nyman C. ,
Ozolins V. ,
Moreno L.  and
Neretnieks I.
Nyman C.
Affiliation:
Department of Chemical Engineering Royal Institute of Technology S- 100 44 Stockholm, Sweden
Ozolins V.
Affiliation:
Department of Chemical Engineering Royal Institute of Technology S- 100 44 Stockholm, Sweden
Moreno L.
Affiliation:
Department of Chemical Engineering Royal Institute of Technology S- 100 44 Stockholm, Sweden
Neretnieks I.
Affiliation:
Department of Chemical Engineering Royal Institute of Technology S- 100 44 Stockholm, Sweden
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Abstract

We have developed a coupled transport and reaction computer program which is adapted to handle sharp reaction fronts. Such fronts develop in the ground and typical examples are redox fronts and dissolution/precipitation fronts. The program is developed to describe the chemical evolution around radioactive waste repositories but it is applicable to other situations as well. To validate the program we compare our results with data from other geochemical equilibrium programs, such as EQ3/6 [1], PHREEQE [2] and transport programs such as CHEQMATE [3]. Natural analogues like the Osamu Utsumi mine at Poços de Caldas in Brazil and the uranium ore body at Cigar Lake in Saskatoon, Canada, are studied using the program.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 257: Symposium – Scientific Basis for Nuclear Waste Management XV , 1991 , 591
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

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