Reduction of Radioactive Waste from Remediation of Uranium-Contaminated Soil

Great amounts of solid radioactive waste (second waste) and waste solution are generated from the remediation of uranium-contaminated soil. To reduce these, we investigated washing with a less acidic solution and recycling the waste solution after removal of the dominant elements and uranium. Increa...

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Bibliographic Details
Published in:Nuclear engineering and technology 2016, 48(3), , pp.840-846
Main Authors: Kim, Il-Gook, Kim, Seung-Soo, Kim, Gye-Nam, Han, Gyu-Seong, Choi, Jong-Won
Format: Article
Language:English
Subjects:
Decontamination
Soil
Uranium
Volume Reduction
Waste
원자력공학
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Summary:Great amounts of solid radioactive waste (second waste) and waste solution are generated from the remediation of uranium-contaminated soil. To reduce these, we investigated washing with a less acidic solution and recycling the waste solution after removal of the dominant elements and uranium. Increasing the pH of the washing solution from 0.5 to 1.5 would be beneficial in terms of economics. A high content of calcium in the waste solution was precipitated by adding sulfuric acid. The second waste can be significantly reduced by using sorption and desorption techniques on ampholyte resin S-950 prior to the precipitation of uranium at pH 3.0.
ISSN:1738-5733
2234-358X
DOI:10.1016/j.net.2016.01.017