Removal Characteristics of Organic Contaminants by Ultrasonic Soil Washing

doi:10.7857/JSGE.2014.19.6.072

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2014 Vol.19, Issue 6 Preview Page Next Page

Removal Characteristics of Organic Contaminants by Ultrasonic Soil Washing 토양 세척 시 초음파 적용에 따른 유기 오염물 제거 특성 평가: 임찬수;김석구;김원재;고석오;
Lim, Chan-Soo;Kim, Seog-Ku;Kim, Weon-Jae;Ko, Seok-Oh;

31 December 2014. pp. 72 ~ 79

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Abstract

Cavitation generated by ultrasonic irradiation can enhance the diffusional transport of organic contaminants from soil surfaces or pores. Therefore, ultrasound soil washing can be an alternative of traditional soil washing process. In this study, soil was artificially contaminated with n-tetradecane, n-hexadecane and phenanthrene. A plate type ultrasonic reactor at 25 kHz frequency and 1000W power was used for laboratory soil washing experiments. Ultrasonic soil washing efficiency was compared with those of traditional soil washing using mechanical mixing. Various operational parameter such as soil/liquid ratio, irradiation time, particle size, and soil organic matter content was tested to find out the optimum condition. It was found that ultrasonic soil washing demonstrates better performance than mechanical soil washing. Optimum soil:liquid ratio for ultrasonic soil washing was 1 : 5. Desorption of organic contaminants from soils by ultrasonic irradiation was relatively fast and reached equilibrium within 10 minute. However, decrease in the soil particle sizes by ultrasonic irradiation results in re-adsorption of contaminants to soil phase. It was also observed that soil particle size distribution and soil organic matter content have significant effects on the efficiency of ultrasonic soil washing.

Keywords

Ultrasound;Desorption;Soil Washing;Soil organic matter;Particle size distribution;

References

Blackstock, D.T., 2000, Fundamentals of Physical Acoustics, Willy, Newyork, 560 p.
Collings, A.F., Gwan, P.B., and Pintos, A.P.S., 2007, Soil Remediation Using High-Power Ultrasonics, Separ. Sci. Technol., 42, 1565-1574.10.1080/01496390701290227
Coleman, A.J. and Saunders, J.E., 1987, Acoustic caviation generated by an extracorporeal shockwave lithotripter, Ultrasoun. Med. Biol., 13, 69-76.10.1016/0301-5629(87)90076-7
Feng, D. and Aldrich, C., 2000, Sonichemical treatment of simulated soil contaminated with diesel, Adv. Environ. Res., 4, 103-122.10.1016/S1093-0191(00)00008-3
Flores, R., Blass, G., and Dominguez, V., 2007, Soil remediation by an advanced oxidative method assisted with ultrasonic energy, J. Hazard. Mater., 140, 399-402.10.1016/j.jhazmat.2006.09.044
Kim, Y.U. and Wang, M.C., 2003 Effect of ultrasound on oil removal from soils, Ultrasonics, 41, 539-542.10.1016/S0041-624X(03)00168-9
Mason T.J. and Lorimer, J.P, Sonichemistry: Theory, Applications and Uses of Ultrasound in Chemistry, Willy, Chichester, 252 p.
Mason, T.J., Colling, A., and Sumel, A., 2004, Sonic and ultrasonic removal of chemical contaminants from soil in the laboratory and on a large scale, Ultrason. Sonochem., 11, 205-210.10.1016/j.ultsonch.2004.01.025
Shrestha, R.A., Pham, T.D., and Sillanpaa, M., 2009, Effect of ultrasound on removal of persistent organic pollutants (POPs) from different types of soils, J. Hazard. Mater., 170, 871-875.10.1016/j.jhazmat.2009.05.048
Son, Y., Cha, J., Lim, M., Ashokkumar, M., and Kim, J., 2011, Comparison of Ultrasonic and Conventional Mechanical Soil-Washing Processes for Diesel Contaminated Sand, Ind. Eng. Chem. Res., 50, 2400-2407.10.1021/ie1016688
Son, Y., Nam, S., Ashkkumar, M., and Kihm, J., 2012, Comparison of energy consumptions between ultrasonic, mechanical, and combined soil washing processes, Ultrason. Sonochem., 19, 395-398.10.1016/j.ultsonch.2011.11.002
Swamy, K.M. and Narayana, K.L., 2001, Ultrasonically assisted leaching, in: T.J. Mason, A. Tiehm (Eds.), Advances in Sonochemistry, 6, Theme Issue-Ultrasound in Environmental Protection, Elsevier, p. 141-179.
Thangavadivel, K., Megharaj, M., Smart, R.S.C., Lesniewski, P.J., and Naidu, R., 2009, Application of high frequency ultrasound in the destruction of DDT in contaminated sand and water, J. Hazard. Mater., 168, 1380-1638.10.1016/j.jhazmat.2009.03.024
Watts, R.J. and Dilly, S.E., 1996, Evaluation of iron catalysts for the Fenton-like remediation of diesel-contaminated soils, J. Hazard. Mater., 51, 209-224.10.1016/S0304-3894(96)01827-4

Information

Publisher :The Korean Society of Soil and Groundwater Environment
Publisher(Ko) :한국지하수토양환경학회
Journal Title :Journal of Soil and Groundwater Environment
Journal Title(Ko) :지하수토양환경
Volume : 19
No :6
Pages :72 ~ 79
DOI :https://doi.org/10.7857/JSGE.2014.19.6.072

[1] Blackstock, D.T., 2000, Fundamentals of Physical Acoustics, Willy, Newyork, 560 p.

[2] Collings, A.F., Gwan, P.B., and Pintos, A.P.S., 2007, Soil Remediation Using High-Power Ultrasonics, Separ. Sci. Technol., 42, 1565-1574.10.1080/01496390701290227

[3] Coleman, A.J. and Saunders, J.E., 1987, Acoustic caviation generated by an extracorporeal shockwave lithotripter, Ultrasoun. Med. Biol., 13, 69-76.10.1016/0301-5629(87)90076-7

[4] Feng, D. and Aldrich, C., 2000, Sonichemical treatment of simulated soil contaminated with diesel, Adv. Environ. Res., 4, 103-122.10.1016/S1093-0191(00)00008-3

[5] Flores, R., Blass, G., and Dominguez, V., 2007, Soil remediation by an advanced oxidative method assisted with ultrasonic energy, J. Hazard. Mater., 140, 399-402.10.1016/j.jhazmat.2006.09.044

[6] Kim, Y.U. and Wang, M.C., 2003 Effect of ultrasound on oil removal from soils, Ultrasonics, 41, 539-542.10.1016/S0041-624X(03)00168-9

[7] Mason T.J. and Lorimer, J.P, Sonichemistry: Theory, Applications and Uses of Ultrasound in Chemistry, Willy, Chichester, 252 p.

[8] Mason, T.J., Colling, A., and Sumel, A., 2004, Sonic and ultrasonic removal of chemical contaminants from soil in the laboratory and on a large scale, Ultrason. Sonochem., 11, 205-210.10.1016/j.ultsonch.2004.01.025

[9] Shrestha, R.A., Pham, T.D., and Sillanpaa, M., 2009, Effect of ultrasound on removal of persistent organic pollutants (POPs) from different types of soils, J. Hazard. Mater., 170, 871-875.10.1016/j.jhazmat.2009.05.048

[10] Son, Y., Cha, J., Lim, M., Ashokkumar, M., and Kim, J., 2011, Comparison of Ultrasonic and Conventional Mechanical Soil-Washing Processes for Diesel Contaminated Sand, Ind. Eng. Chem. Res., 50, 2400-2407.10.1021/ie1016688

[11] Son, Y., Nam, S., Ashkkumar, M., and Kihm, J., 2012, Comparison of energy consumptions between ultrasonic, mechanical, and combined soil washing processes, Ultrason. Sonochem., 19, 395-398.10.1016/j.ultsonch.2011.11.002

[12] Swamy, K.M. and Narayana, K.L., 2001, Ultrasonically assisted leaching, in: T.J. Mason, A. Tiehm (Eds.), Advances in Sonochemistry, 6, Theme Issue-Ultrasound in Environmental Protection, Elsevier, p. 141-179.

[13] Thangavadivel, K., Megharaj, M., Smart, R.S.C., Lesniewski, P.J., and Naidu, R., 2009, Application of high frequency ultrasound in the destruction of DDT in contaminated sand and water, J. Hazard. Mater., 168, 1380-1638.10.1016/j.jhazmat.2009.03.024

[14] Watts, R.J. and Dilly, S.E., 1996, Evaluation of iron catalysts for the Fenton-like remediation of diesel-contaminated soils, J. Hazard. Mater., 51, 209-224.10.1016/S0304-3894(96)01827-4

Journal of Soil and Groundwater Environment ISSN:1598-6438(Print) 2287-8831(Online) 지하수토양환경

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