Journal of Soil and Groundwater Environment (한국지하수토양환경학회지:지하수토양환경)

Korean Society of Soil and Groundwater Environment (한국지하수토양환경학회)
권호 표지

The Laboratory Column Examination of Stabilization for Agricultural Land Contaminated by Heavy Metals using Sequential Stabilization

연속 안정화 공법을 이용한 중금속 오염 농경지 토양 안정화 처리를 위한 Column 실험 연구

  • Park, Dong-Hyeok (Department of Environmental Engineering, Kwangwoon University) ;
  • Cho, Yun-Chul (Graduate School of Green Environment and Energy) ;
  • Choi, Sang-Il (Department of Environmental Engineering, Kwangwoon University)
  • 박동혁 (광운대학교 환경공학과) ;
  • 조윤철 (광운대학교 녹색환경에너지대학원) ;
  • 최상일 (광운대학교 환경공학과)
  • Received : 2010.05.13
  • Accepted : 2010.07.06
  • Published : 2010.08.31
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Abstract

In order to treat paddy soils contaminated by Pb, Cd, and As near the abandoned mine, $H_2PO_4$ was used for stabilization of Pb ($PO_4$/Pb mole ratio of 2/1). In addition, $CaCO_3$ and $FeSO_4$ were used as stabilizers for treating Cd and As (2% w/w), respectively. Leaching tests were conducted with artificial rain in the column to assess the heavy metal stabilization efficiency. The mass of heavy metals in the effluents passed through the columns were analyzed. The remaining heavy metals in the soils were also analyzed as Korean soil standard method, phytoavailability test and sequential extraction test. Lead in the effluent was not detected when $H_2PO_4$ was used as a stabilizer. This result suggests that $H_2PO_4$ is efficient for Pb stabilization. In addition results of sequential extraction scheme suggest that heavy metals are present as residual forms which is not easily extracted.

Keywords

References

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