Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1989-05-09
1991-01-08
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210726, 210912, 252631, 423 11, C02F 152
Patent
active
049833065
ABSTRACT:
A process of treating water to remove transuranic elements contained therein by adjusting the pH of a transuranic element-containing water source to within the range of about 6.5 to about 14.0, admixing the water source with an alkali or alkaline earth ferrate in an amount sufficient to form a precipitate within the water source, the amount of ferrate effective to reduce the transuranic element concentration in the water source, permitting the precipitate in the admixture to separate and thereby yield a supernatant liquid having a reduced transuranic element concentration, and separating the supernatant liquid having the reduced transuranic element concentration from the admixture is provided. Additionally, a water soluble salt, e.g., a zirconium salt, can be added with the alkali or alkaline earth ferrate in the process to provide greater removal efficiencies. A composition of matter including an alkali or alkaline earth ferrate and a water soluble salt, e.g., a zirconium salt, is also provided.
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Chatfield Linda K.
Deininger J. Paul
Cottrell Bruce H.
Gaetjens Paul D.
Hruskoci Peter
The Regents of the University of California
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