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Evaluation of organic and inorganic adsorbents for the removal of uranium and plutonium from process streams [electronic resource].

Published
Miamisburg, Ohio : Mound Laboratory, 1977.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 17 : digital, PDF file
Additional Creators
Mound Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Mound Laboratory is evaluating macroporous, ion exchange resins for the removal of plutonium, uranium, and various colloids from process waste treatment effluents. A number of organic ion exchange resins were evaluated for removal of /sup 238/Pu(IV), /sup 238/Pu(VI), and /sup 233/U(VI) from water using batch isotherm tests. The capacity and equilibrium distribution coefficients were compared with each other and with bone char, an inorganic adsorbent consisting of hydroxyapatite (HAP). The various types of adsorbents showed that the extent of removal and the equilibrium coefficients (Kd) were functions of pH. For removal of polymeric plutonium, /sup 238/Pu(IV), the best results were achieved using the inorganic adsorbent, bone char (hydroxyapatite), at pH 7. However, macroporous, weak base, anion exchange resins also showed reasonable Kd values at pH 7. Therefore, the best removal of polymeric plutonium can be achieved using chemisorption or weak base anionic exchange, indicating strongly ionized anions. Excellent results for removal of /sup 238/Pu(VI) were achieved using macroporous, strong base, anion exchange resins and macroporous, strong acid, cation exchange resins. For removal of ionic /sup 233/U(VI), the strongly acidic cation exchangers gave the better results; the Kd values were on the order of 10/sup 2/ better than bone char. Again, performance was strongly dependent upon pH. Adsorbent resins which remove constituents by physical adsorption did not perform well for uranium removal.
Report Numbers
E 1.99:mlm-2424(op)
mlm-2424(op)
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1977.
"mlm-2424(op)"
Luthy, D.F.; Herald, W.R.; Koenst, J.W.
Funding Information
EY-76-C-04-0053
View MARC record | catkey: 14420796