• A Study for Remediation of Heavy Metal Contaminated Soil Using Electrokinetics with Swappable Electrode
  • Choi, Heechol;Lee, Tae-Jin;
  • Department of Environmental Engineering, Kwangwoon University;Department of Environmental Engineering, Seoul National University of Science & Technology;
  • 전극변환 동전기를 이용한 중금속 오염토양 처리에 관한 연구
  • 최희철;이태진;
  • 광운대학교 환경공학과;서울과학기술대학교 환경공학과;
Abstract
In this study, remediation of heavy metal contaminated soil was attempted by the electrokinetic process equipped with fixed or swappable electrode. Copper was more effectively removed with EDTA than citric acid. Zinc was much more removed than copper with both detergents. When electrokinetic with fixed electrode and detergents were applied to the contaminated soil, copper was removed about 28.52%~35.25% and zinc was removed about 63.44%~71.48%. When electrokinetics with swappable electrode and detergents were applied to the contaminated soil, the pseudo-first order reaction constants was higher about 16~50% than with fixed electrode in the case of zinc. It is conclusive that electrokinetics with swappable electrode could be an effective method for the remediation of heavy metal contaminated soil.

Keywords: electrokinetic;swappable electrode;heavy metals;detergent;

References
  • 1. Amrate, S., Akretche, D.E., Innocent, C., and Seta, P., 2005, Removal of Pb from a calcareous soil during EDTA-enhanced electrokinetic extraction, Sci. Total Environ., 349, 56-66.
  •  
  • 2. Cheong, D.C., Lee, J.H., and Choi, S.I., 1997, Application of Soil Washing Technology to the Soil Contaminated by Heavy Metals, J. of KoSES, 2(2), 53-60.
  •  
  • 3. Chlopecka, A., Bacon, J.R., Wilson, M.J., and Kay, J., 1996, Forms of cadmium, lead, and zinc in contaminated soils from southwest poland, J. Environ. Qual., 25, 69-79.
  •  
  • 4. Han, S.J., Kim, B.I., and Kim, S.S., 2004, The Characteristics of Electrokinetic Remediation of Natural Soil according to Flushing Solutions, J. of KSEE, 26(4), 467-474.
  •  
  • 5. Hanay, O, Hasar, H., and Kocer, N.N., 2009, Effect of EDTA as washing solution on removing of heavy metals from sewage sludge by electrokinetic, J. Hazard. Mater., 169, 703-710.
  •  
  • 6. Hwang, S.S., Park, S.S., and Wan Namkoong, 2004, Extraction Kinetics of Heavy Metals from Contaminated Soil by Soil Washing, J. of KSEE, 26(11), 1181-1190.
  •  
  • 7. Jee, S.H., Ko, S.O., Park, G.H., and Park, M.H., 2006, Evaluation of Soil Washing Technology for the Remediation of Heavy Metal Contaminated Soil, J. of KSEE Conference Proceeding, Dec 2, 1525-1529.
  •  
  • 8. Kang, S.K., 1994, The Mobilization of Heavy Metals from Contaminated Soil Using Low Molecular Weight Organic Acids, Ph.D. Thesis, Oregon State University.
  •  
  • 9. Kim, S.O. and Kim, K.W., 2001, Monitoring of electrokinetic removal of heavy metals in tailing-soils using sequential extraction analysis, J. Hazard. Mater., 85(3), 195-211.
  •  
  • 10. Kim, U.H., Han, S.J., and Kim, S.S., 2004, Effect of the Soil Chemical Properties on the Remediation of Soil Contaminated with Phenanthrene Using Electrokinetic-Fenton ProcessPhenanthrene , J. of KSEE, 26(2), 200-210.
  •  
  • 11. Ko, S.H., 2007, Certificate No 195 New Excellent Technology : the Ministry of Environment.
  •  
  • 12. Lee, H.S., Hong, S.M., Ko, S.H., and Lee, K.S., 2002, EDTAEnhanced Electrokinetic Removal of Cu and Zn from Contaminated Sandy Soil, J. of KGES, 3(1), 37-45.
  •  
  • 13. Lee, K.C., Lee, H.J., Lee, M.H., Kim, S.S., Kim, D.H., Kim, Y.H., and Yun, J.K., 1993, A Study of Soil Remediation Methods of Contaminated Land, Report of NIER, 93-22-391.
  •  
  • 14. Peters, R.W., 1999, Chelant extraction of heavy metals from contaminated soils, J. Hazard. Mater., 66(1-2), 151-210.
  •  
  • 15. Rajic, L., Dalmacija, B., Dalmacija, M., Roncevic, S., and Perovic, S.U., 2012, Enhancing electrokinetic lead removal from sediment :Utilizing the moving anode technique and increasing the cathode compartment length, Electrochimica Acta, http:// dx.doi.org/10.1016/j.electacta.2012.02.029.
  •  
  • 16. Ure, A.M., 1990, Method of analysis for heavy metals in soils, Heavy Metal in soil, Alloway, B. J. (Ed.), Blackie and Sons Ltd., 40-80.
  •  
  • 17. Yang, G.C.C., Shuen-Long Lin, 1998, Removal of lead from a silt loam soil by electrokinetic remediation, J. Hazard. Mater., 58, 285-299.
  •  

This Article

  • 2012; 17(5): 75-81

    Published on Oct 31, 2012

  • 10.7857/JSGE.2012.17.5.075
  • Received on Aug 17, 2012
  • Revised on Oct 9, 2012
  • Accepted on Oct 9, 2012