Resins for selective sorption of technetium from groundwater
- Oak Ridge National Lab., TN (United States)
A new class of anion exchange resins with improved selectivity and sorptive capacity for the pertechnetate anion (TcO{sub 4}{sup -}) as compared to commercially available resins has been prepared and evaluated, both in batch-equilibrium and flow-through column testing conditions using a groundwater test solution. The resins have been designed and optimized for removal of pertechnetate from contaminated groundwater containing nanomolar concentrations of pertechnetate and sub-millimolar quantities of inorganic anions like nitrate, sulfate, and chloride. Equilibrium distributions coefficients for the sorption of pertechnetate to several classes of resin as a function of both time and electrolyte concentration will be discussed. The selectivity and exchange kinetics as a function of the chemical and physical structure of the resins will be addressed.
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 560140
- Report Number(s):
- CONF-970443-; TRN: 98:002163
- Resource Relation:
- Conference: 213. national meeting of the American Chemical Society, San Francisco, CA (United States), 13-17 Apr 1997; Other Information: PBD: 1997; Related Information: Is Part Of 213th ACS national meeting; PB: 2904 p.
- Country of Publication:
- United States
- Language:
- English
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