Reillex{trademark}-HPQ anion exchange column chromatography studies of pertechnetate ion in DSSF-7 simulant on 1x20 inch columns
- Los Alamos National Lab., NM (United States); and others
Technetium-99 is a major fission product resulting from the fission of plutonium or uranium. An estimated 2000 Kg of technetium is being stored in the Hanford waste tanks. As TcO{sub 4}{sup -}, technetium is a very mobile species in the environment This characteristic, along with its long half-life, 213,000 years, causes technetium to be a major contributor to the long-term risk associated with storage of low level waste (LLW) forms. One option for mitigating this hazard is to separate technetium, from LLW streams and vitrify it with the high level waste (HLW) components. Anion exchange is the baseline technology for technetium separations. Technetium is successfully partitioned from DSSF waste simulant with 1 x 20 inches columns of Reillex{trademark}-HPQ resin. Breakthrough data is linear for flow rates ranging from 1-15 cm/min (5-75 ml/min). Technetium is eluted within two column volumes with a Sn(II)/ethylenediamine eluent. Resin columns can be recycled at least six times.
- OSTI ID:
- 370555
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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