Simple Method for Technetium Removal from Aqueous Solutions
| Autor: | William D. Bostick, G. D. Del Cul |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Packed bed
Nuclear and High Energy Physics Aqueous solution Pertechnetate 020209 energy Radiochemistry chemistry.chemical_element 02 engineering and technology Human decontamination Condensed Matter Physics Technetium Waste treatment chemistry.chemical_compound 020303 mechanical engineering & transports Adsorption 0203 mechanical engineering Nuclear Energy and Engineering chemistry Technetium-99 0202 electrical engineering electronic engineering information engineering Nuclear chemistry |
| Zdroj: | Nuclear Technology. 109:161-162 |
| ISSN: | 1943-7471 0029-5450 |
| DOI: | 10.13182/nt95-a35076 |
| Popis: | Because of an increasing need for {sup 99}Tc removal from treatment solutions during waste processing and environmental cleanups, several inexpensive sorbents were investigated. Here, Packed-column experiments with iron dust of 40 to 60 mesh (Fisher I-57) showed an excellent uptake of pertechnetate ions from alkaline (pH {approximately} 8.5) high-nitrate (100 to 250 g/l) solutions at flow rates measured in bed volumes (BVs) of between 0.05 and 0.15 BV/min. The columns worked well until they became plugged by rusting after several hundred bed volumes of solution were flowed through (330 to 900 BV). Similar tests using organic ion-exchange resins, such as Dowex SRB-OH and Reillex HP and Reillex HPQ, and the same alkaline high-nitrate solutions showed breakthroughs after 20 to 50 BV were passed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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