Cesium Immobilization in Soil by Ball-Milling Treatment with Nanometallic Additive
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 17, Issue 1
Abstract
This work assessed ball-milling treatment for remediation of cesium (Cs)-contaminated soil. The immobilization efficiency increases from 56.4% in the absence of treatment to 89.9, 91.5, 97.7, and 96.4% when the soil is ball milled for 30, 60, and 120 min, respectively. However, the addition of nanometallic and increased the immobilization efficiency to approximately 96.4% compared with ball milling alone, even when the milling time was decreased to 60 min. Actually, with the addition of and , the leachable fraction of Cs was reduced in the soil after a short milling time. These promising results suggest that ball milling can be regarded as applicable for the remediation of cesium-contaminated soil in dry and water-free conditions. This treatment method requires no expensive reagent and does not generate exhaust gases. It requires only electricity with cheap and commercially available reagents. This treatment process is an environmentally friendly depollution technique.
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Acknowledgments
The authors are thankful to the New Energy and Industrial Technology Development Organization (NEDO) Program, Japan (Project ID: 09B35003a), for providing financial support to conduct this study.
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Published In
Journal of Hazardous, Toxic, and Radioactive Waste
Volume 17 • Issue 1 • January 2013
Pages: 2 - 8
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Feb 27, 2012
Accepted: Jul 16, 2012
Published online: Dec 16, 2012
Published in print: Jan 1, 2013
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