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Possible Complex Formation of Actinides with Organic Matter and Phosphate in Deep Groundwaters. Speciation Calculations and Data Evaluation

Published online by Cambridge University Press:  26 February 2011

Karin Aidersson
Karin Aidersson*
Affiliation:
Lindgren o Andersson HB, Asbacken 28, S-445 00 SURTE, SWEDEN
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Abstract

Calculations of solubility and speciation of U, Th, Ip, Pu, and An in a deep groundwater, containing humlc acid and phosphate have been performed, using the PHRBEQB equilibrium code. Where equilibrium data are missing, estimates have been made.

Some of the studied complexes and solid phases may be of importance to the actinide behaviour in deep groundwaters, eg AmPO4(s) and several aqueous phosphate species and also humic acid for trivalent actinides.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 127: Symposium BERLIN – Scientific Basis for Nuclear Waste Management XII , 1988 , 693
Copyright
Copyright © Materials Research Society 1989

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References

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