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Influence of Micro Environments and Microorganisms on the Transport Properties of Redox-Sensitive Elements (E.G. Technetium)

Published online by Cambridge University Press:  28 February 2011

Hanskarl Brühl ,
Asaf Pekdeger  and
Andreas Winkler
Hanskarl Brühl
Affiliation:
Free University Berlin, Institut for Geology, Geophysic and Geoinformatic, Wichernstr. 16, D-1000 Berlin 33, Federal Republic of Germany.
Asaf Pekdeger
Affiliation:
Free University Berlin, Institut for Geology, Geophysic and Geoinformatic, Wichernstr. 16, D-1000 Berlin 33, Federal Republic of Germany.
Andreas Winkler
Affiliation:
Free University Berlin, Institut for Geology, Geophysic and Geoinformatic, Wichernstr. 16, D-1000 Berlin 33, Federal Republic of Germany.
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Abstract

In laboratory experiments immobilisation of Tc under oxic conditions was observed. The transport behaviour of redox-sensitive elements is not only controlled by the geochemical “frame conditions” which can be measured within the macro environment. Immobilisation behaviour of Tc strongly depends on micro environments and on microbial metabolism. Micro environments which may develope on the mineral surfaces can detoriate the mobility of Tc, furthermore the fixation of Tc is influenced by microbial activities.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 212: Symposium P – Scientific Basis for Nuclear Waste Management XIV , 1990 , 593
Copyright
Copyright © Materials Research Society 1991

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References

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