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Remediation of Pb-Contaminated Soil by Soil Washing using Hdrochloric Acid  

Baek, Ki-Tae (Department of Environmental Engineering, Kumoh National Institute of Technology)
Kim, Do-Hyung (Department of Environmental Engineering, Kumoh National Institute of Technology)
Seo, Chang-Il (Department of Environmental Engineering, Kumoh National Institute of Technology)
Yang, Jung-Seok (KIST Gangneung Institute)
Lee, Jae-Young (Environment & Fire Control Team, Korea Railroad Research Institute)
Publication Information
Journal of Soil and Groundwater Environment / v.12, no.3, 2007 , pp. 17-22 More about this Journal
Abstract
The feasibility of soil washing was investigated to remediate Pb-contaminated field soil. Hydrochloric acid was used as a washing agent. As mixing time increased from 5 min to 120 min, removal efficiency of Pb from contaminated soil increased from 69.3% to 81.9%. Two times washing with 0.2 M HCl showed 96% removal efficiency even at mixing time of 10 min. The Pb content in soil increased sharply as particle size of soil decreased, and removal efficiency was highly dependent on mixing time and temperature. Based on this result, acid washing technologies can be applied to remediate the Pb-contaminated soil used in this study.
Keywords
Pb-contaminated soil; soil washing; acid washing; heavy metal;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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