Browse > Article
http://dx.doi.org/10.7733/jnfcwt.2015.13.1.35

Decontamination of Uranium-Contaminated Gravel  

Park, Uk Ryang (Korea Atomic Energy Research Institute)
Kim, Gye Nam (Korea Atomic Energy Research Institute)
Kim, Seung Soo (Korea Atomic Energy Research Institute)
Moon, Jei Kwon (Korea Atomic Energy Research Institute)
Publication Information
Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) / v.13, no.1, 2015 , pp. 35-43 More about this Journal
Abstract
A large amount of radioactively-contaminated gravel can be produced on the demolition/restoration of facilities related the back end of fuel cycle. However, because of the lacking in basic knowledge for decontamination of radioactive-contami-nated gravel, this study has performed the basic tests using for soil-washing. To find effective decontamination condition, several experiments were carried out for the selection of optimal decontamination agents. Washing by 0.1 M nitric acid was proved to be more effective than that by distilled water or surfactant for decontamination of uranium-contaminated gravel. In addition, crushing/grinding of uranium-contaminated gravel prior to washing was contributed to increase in of removal efficiency of uranium and reduction of decontamination time. The smaller the sizes of crushed gravel was, the more the removal efficiency increased. Also, small the sized particles improved chances for meeting the clearance requirement of the treated gravel.
Keywords
Gravel; Washing; Decontamination; Uranium;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Y.D. Choi, D.S. Hwang, K.I. Lee, U.S. Chung, S.T. Hwang, and K.J. Jung, "Decommissioning of Uranium Conversion Plant", Proc. of Korea Nuclear Society Autumn Meeting, vol. 2, 1-7, October 24-26, 2001, Suwon.
2 S.I. Choi, “Pollution of Groundwater Through Remediation of Contaminated Soil”, Korea Society of Soil and Groundwater Environment, 8, 47-60 (1997).
3 J.W. Yang and Y.J. Lee, “Status of Soil Remediation and Technology Development in Korea”, Korean Chemical Engineering Research, 45, 311-318 (2007).
4 H.K. Lee, D.H. Kim, Y.H. Jo, S.H. Do, J.Y. Lee, and S.H. Kong, “Improving Soil Washing/Flushing Process using a Mixture of Organic/inorganic Extractant for Remediation of Cadmium(Cd) and Copper(Cu) Contaminated Soil”, J. Soil and Groundwater Environment, 14(2), 17-25 (2009).
5 R. Semer and K.R. Reddy, “Evaluation of Soil Washing Process to Remove Mixed Contaminants from a Sandy Loam”, J. Hazardous Materials, 45, 45-57 (1995).   DOI   ScienceOn
6 A.M. Liaghat and S.O. Prasher, “An In-Situ Soil Washing System for Diesel Fuel Contaminated Soil”, J. Agricultural Science Technology, 4, 73-81 (2002).
7 S.W. Park, J.M. Cho, J.Y. Lee, J.K. Park, and K.T. Baek, “Feasibility Study on Soil Flushing for Railway Soil Contaminated with Lubricant Oil and Zinc”, J. Soil and Groundwater Environment, 16(4), 31-37 (2011).   DOI   ScienceOn
8 G.N. Kim, W.K. Choi, C.H. Jung, and J.K. Moon, “Development of a Washing System for Soil Contaminates With Radionuclides Around TRIGA Reactors”, J. Industrial and Engineering Chemistry, 13, 406-413 (2007).
9 G.N. Kim, Y.H. Jung, J.J. Lee, J.K. Moon, C.H. Jung, and U.S. Chung, “Development of a Electrokinetic-Flushing Equipment for a Remediation of Soil Contaminated With Radionuclides”, J. Korean Radioact. Waste Soc., 6(1), 1-9 (2008).
10 A.D. Raru, A. Woinaroschy, E. Panuru, and A. Filcenco-Olteanu, “Uranium Soils Decontamination by Washing Method”, UPB Scientific Bulletin Series B: Chemistry and Materials Science, 75, 13-22 (2013).
11 Y.M. Cho, J.Y. Lee, T.S. Kwon, W.S. Jung, D.S. Park, I.H. Lee, B.K. Kim, W.H. Jung, C. Lee, Y.K. Yoon, Y.M. Yang, H.M. Kim, and J.I. Lim, "Field Application of Dry Washing Technology for Polluted Rail Road Ballast Gravel", Fall Meeting Korea Society Railway, A-139, 819-824, October 18-20, 2012, Gyeong-ju.