Aluminum-Containing Phases in Tank Waste: Precipitation and Deposition of Aluminum-Containing Phases | Zendy

Shas V. Mattigod | Zendy; D.T. Hobbs | Zendy; Dawn M. Wellman | Zendy; I. A. Aksay | Zendy

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Aluminum-Containing Phases in Tank Waste: Precipitation and Deposition of Aluminum-Containing Phases

Author(s) -

Shas V. Mattigod,

D.T. Hobbs,

Dawn M. Wellman,

I. A. Aksay

Publication year - 2006

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/895836

Subject(s) - uranium , savannah river site , radioactive waste , precipitation , waste management , environmental science , deposition (geology) , aluminosilicate , solubility , geology , metallurgy , materials science , chemistry , engineering , meteorology , paleontology , biochemistry , organic chemistry , sediment , catalysis , physics

Aluminosilicate deposit buildup experienced during the tank waste volume-reduction process at the Savannah River Site (SRS) required an evaporator to be shut down in October 1999. Recent investigations illustrated the accumulation 7 wt% uranium, 3% was 235U and absent of neutron poisons, within these deposits and presented a criticality concern. The Waste Processing Technology Section of Westinghouse Savannah River Company at SRS is now collaborating with a team from Pacific Northwest National Laboratory in efforts to identify the phases controlling uranium solubility and understand the conditions under which they precipitate

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