DOI QR코드

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동전기법에 의한 광산퇴적토의 중금속 제거 특성

Lee, Chang-Eun;Shin, Hyun-Moo

  • 발행 : 2003.02.01

초록

Electrokinetic remediation technique offers the opportunity to extract heavy metals from soils with high plasticity. The experiment demonstrated the applicability of electrokinetic remediation on metal-mining deposit and the decision of the enhancement method for four kinds of bench-scale studies. According to the sequential extraction of heavy metals in the "I" mining deposit, Pb and Cu were mostly associated with residual fraction and Zn and Cd were associated with water soluble and residual fraction. Therefore, removable fractions by electrokinetic technology was determined by the sum of the fraction of water soluble and exchangeable, which is Cu : 19.53%, Pb : 1.42%, Cd : 52.82%, Zn : 57.28%, respectively. When considering electrical potential, volume of effluent, soil pH, and eliminated rate of contaminant, results determined by sum of each weight were Citric aic+SDS (13) > 0.1N $HNO_3$ (10) > HAc (8) > DDW (4). Therefore, citric acid and SDS mixed solution was determined the best enhancing agent for the remediation of metal mining deposit.g deposit.

키워드

Electrokinetics;Metal-mining deposit;Sequential extraction

참고문헌

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피인용 문헌

  1. Effect of Heavy Metal Species on the Removal of Cu, Pb, and Cd Contaminated Soils Using Electrokinetic Process vol.13, pp.1, 2004, https://doi.org/10.5322/JES.2003.12.2.227