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http://dx.doi.org/10.7857/JSGE.2013.18.7.041

Enhanced Separation Technique of Heavy Metal (Pb, Zn) in Contaminated Agricultural Soils near Abandoned Metal Mine  

Park, Chan Oh (Institute of Technology Research, Korea Resources Corporation)
Kim, Jin Soo (Research Institute, Aina Environmental Group Korea Co. Ltd.)
Seo, Seung Won (Research Institute, Aina Environmental Group Korea Co. Ltd.)
Lee, Young Jae (Department of Earth & Environmental Sciences, Korea University)
Lee, Jai Young (Department of Environmental Engineering, The University of Seoul)
Park, Mi Jeong (Institute of Mine Reclamation Technology, Mine Reclamation Corporation)
Kong, Sung Ho (Department of Chemical Engineering, Hanyang University)
Publication Information
Journal of Soil and Groundwater Environment / v.18, no.7, 2013 , pp. 41-53 More about this Journal
Abstract
The study is to propose the optimal separation technique of heavy metals (Pb and Zn) contaminated in soil for improving the removal efficiency by various applicable techniques. The heavy metal contaminated soil samples near abandoned mine X-1 and X-2 were used for the study. Firstly, the wet classification process was shown more than 80% of removal efficiency for lead and zinc. Meanwhile, the magnetic separation process was shown low removal efficiency for lead and zincs because those heavy metals were non-magnetic materials. For the next step, the flotation separation process was shown approximately 24.4% of removal efficiency for zinc, while the gravity concentration process was shown approximately 57% of removal efficiency for lead, and 19.9% of removal efficiency for zinc, respectively. Therefore, zinc contaminated in soil would be effectively treated by the combination technique of the wet classification and the flotation technique. Meanwhile, lead contaminated in soil would be effectively treated by the combination technique of the wet classification process and the flotation process. Furthermore, the extraction of organic matter was shown more effective with aeration, 3% of hydrogen peroxide and 3% of lime such as calcium hydroxide.
Keywords
Heavy metal (Lead; Zinc) contamination in soil; Abandoned metal mine; Separation technique of heavy metal; Soil restoration;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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