Bench-scale electrokinetic remediation for cesium-contaminated sediment at the Hanford Site, USA

We conducted a laboratory experiment to investigate the efficiency of electrokinetic (EK) remediation method for Hanford sediment (76 % sand and 24 % silt–clay) after artificial contamination with nonradioactive 133 Cs (0.01 M CsNO 3 ) as a surrogate for radioactive 137 Cs. A significant removal of...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2015-05, Vol.304 (2), p.615-625
Main Authors: Jung, Hun Bok, Yang, Jung-Seok, Um, Wooyong
Format: Article
Language:English
Subjects:
Cationic
Chemistry
Chemistry and Materials Science
Contamination
Diagnostic Radiology
Electrokinetics
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Radioactive materials
Radioactive substances
Remediation
Sand
Sediments
Sediments (Geology)
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Summary:We conducted a laboratory experiment to investigate the efficiency of electrokinetic (EK) remediation method for Hanford sediment (76 % sand and 24 % silt–clay) after artificial contamination with nonradioactive 133 Cs (0.01 M CsNO 3 ) as a surrogate for radioactive 137 Cs. A significant removal of cationic 133 Cs from the sediment occurred from the cathode side (−), whereas the removal was negligible from the anode side (+) during the EK remediation process for 68 days. The experimental results suggest that the EK method can effectively remove radioactive Cs from the surface or subsurface sediment contaminated by radioactive materials in the Hanford Site, Washington, USA.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-014-3852-0