A Comparison on the Effect of Stabilization Methods for Rice Paddies contaminated by Heavy Metal

중금속 오염 농경지 토양의 안정화 처리공법 효과 비교

  • 유찬 (경상대학교 지역환경기반공학과) ;
  • 윤성욱 (경상대학교농공학과대학원) ;
  • 박진철 (경상대학교농공학과대학원) ;
  • 이정훈 (경상대학교농공학과대학원) ;
  • 최승진 (한국광해관리공단) ;
  • 최덕용 (한국광해관리공단) ;
  • 이지민 (한국광해관리공단)
  • Published : 2009.03.27

Abstract

In order to investigate the field application of selected stabilization methods(cover soil method, surface and total interval treatment of embankment method) on rice paddies contaminated by heavy metals, column test was carried out with heavy metal-contaminated soils collected from rice paddies around abandoned mine site. Columns were made by acrylic and filled with untreated soil, treated soil mixed with amendments(lime stone and steel refining slag) and uncontaminated cover soil according to the design report. Distilled water was discharged into the columns with the velocity of 1 pore volume/day. During test, pH, EC, and heavy metal concentration were measured in the regular term. The column test result showed that the selected stabilization methods were effective remediation method to stabilize heavy metals in paddy soils, but it was also expected that application of surface treatment methods was required the careful observation on pH variation due to the lowest increment.

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