지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.1
- 수록면
- 587 - 595 (9page)
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초록· 키워드
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This research was performed to evaluate extraction characteristics of heavy metals with agitation frequency and kinds of washing solutions, and to evaluate possibility of NaCl as washing solution in soil washing process. Target materials were obtained from disused metal mines. Washing solutions were water, 0.3 N HCl, 0.05 M EDTA, seawater, and NaCl (1, 3.5, 5, 10%). As agitation frequency was stronger, extraction efficiencies of heavy metals were increased in all washing solutions. But extraction effectiveness was different with washing solutions. Extraction efficiencies of heavy metals in water, seawater, NaCl were relatively low, but extraction effectiveness of heavy metals (especially, Cd) was highest in NaCl among these washing solutions. And extraction effectiveness was the highest for Cd in 0.3 N HCl and Pb in 0.05 M EDTA. In evaluating possibility of NaCl as washing solution, extraction concentrations and extraction efficiencies of heavy metals increased with increasing of NaCl concentration. Also, extraction efficiencies of Pb, Cu, and Zn in using NaCl were below 1%, and extraction efficiency of Cd was relatively high as 5.9%. As extraction effectiveness of heavy metals in NaCl was higher than those in water and seawater, it was evaluated that NaCl has enough possibility as washing solution in soil washing process.
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