Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Stabilization of Heavy Metal Contaminated Soil Amended with Waste Cow Bone

중금속으로 오염된 토양 정화에 있어 폐 소뼈 첨가제의 영향

  • Lim, Jung-Hyun (School of Civil, Environment and Archtectural Engineering, Korea University) ;
  • Cui, Ming-Can (School of Civil, Environment and Archtectural Engineering, Korea University) ;
  • Moon, Deok-Hyun (Hea Chun ETS) ;
  • Khim, Jee-Hyeong (School of Civil, Environment and Archtectural Engineering, Korea University)
  • 임정현 (고려대학교 건축사회환경공학부) ;
  • 최명찬 (고려대학교 건축사회환경공학부) ;
  • 문덕현 (해천 ETS) ;
  • 김지형 (고려대학교 건축 사회환경공학부)
  • Received : 2009.12.28
  • Accepted : 2010.02.01
  • Published : 2010.02.28
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Abstract

A stabilization/solidification (S/S) process for lead (Pb) contaminated soils was evaluated using waste cow bone containing apatite like compounds. Soil samples obtained form firing range were treated with waste cow bone. The effectiveness of stabilization was evaluated based on the Korean Standard Leaching Test (KSLT) and soil pH. The leached concentration reduced with increased in dose of waste cow bone. Overall, the KSLT results showed that Pb concentration in soils are significantly affected by amount of waste cow bone. When soil amended with 20 % of waste cow bone, less than 0.1 mg/kg was leached, and soil pH was increased from 6.5 to 8.4. Same results were obtained when finer waste cow bone was applied. The reachable concentration of Pb in soil showed in inversely proportional to solid/liquid ratio. Aging periods indicate improving mix design was applied. Relatively high lead concentrations was observed at the first 1 days, however leaching profile are reduced significantly over time for all mix designs.

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References

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