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Sorption of Plutonium and Americium on Repository, Backfill and Geological Materials Relevant to The JNFL Low-Level Radioactive Waste Repository at Rokkasho-Mura

Published online by Cambridge University Press:  15 February 2011

G M N Baston ,
J A Berry ,
M Brownsword ,
T G Heath ,
C J Tweed  and
S J Williams
G M N Baston
Affiliation:
AEA Technology, 220 Harwell, Oxfordshire, UK
J A Berry
Affiliation:
AEA Technology, 220 Harwell, Oxfordshire, UK
M Brownsword
Affiliation:
AEA Technology, 220 Harwell, Oxfordshire, UK
T G Heath
Affiliation:
AEA Technology, 220 Harwell, Oxfordshire, UK
C J Tweed
Affiliation:
AEA Technology, 220 Harwell, Oxfordshire, UK
S J Williams
Affiliation:
AEA Technology, 220 Harwell, Oxfordshire, UK
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Abstract

An integrated programme of batch sorption experiments and mathematical modelling has been carried out to study the sorption of plutonium and americium on a series of repository, backfill and geological materials relevant to the JNFL low-level radioactive waste repository at Rokkasho-Mura.

The sorption of plutonium and americium on samples of concrete, mortar, sand/bentonite, tuff, sandstone and cover soil has been investigated. In addition, specimens of bitumen, cation and anion exchange resins, and polyester were chemically degraded. The resulting degradation product solutions, alongside solutions of humic and iso-saccharinic acids were used to study the effects on plutonium sorption onto concrete, sand/bentonite and sandstone.

The sorption behaviour of plutonium and americium has been modelled using the geochemical speciation program HARPHRQ in conjunction with the HATCHES database.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 957
Copyright
Copyright © Materials Research Society 1995

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References

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