Remediation of benzo[a]pyrene Contaminated Soil using Subcritical Water

doi:10.7857/JSGE.2014.19.6.013

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2014 Vol.19, Issue 6 Preview Page Next Page

Remediation of benzo[a]pyrene Contaminated Soil using Subcritical Water 아임계수를 이용한 토양 내 벤조[a]피렌 정화: 신문수;;조영태;박정훈;
Shin, Moon-Su;Islam, Mohammad Nazrul;Jo, Young-Tae;Park, Jeong-Hun;

31 December 2014. pp. 13 ~ 17

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Abstract

Subcritical water acts like an organic solvent at elevated temperature in terms of its physicochemical properties. Taking into account this advantage, the remediation experiments of benzo[a]pyrene contaminated soil (8.45 mg/kg of initial concentration) were conducted using subcritical water extraction apparatus. The effect of operating factors on the removal efficiency was studied at the varying the conditions of the water temperature ranging $200{\sim}300^{\circ}C$, extraction time 30~90 min, and flow rate 0.3~2.0 mL/min. 12 g of benzo[a]pyrene contaminated soil was inserted into the extraction cell and placed into the reactor and then the subcritical water was driven through the cell. In this study, the removal efficiency of benzo[a]pyrene was increased from 55.1 to 98.1% when the temperature increased from 200 to $300^{\circ}C$. The removal efficiency was decreased from 97.0 to 77.0% when the flow rate increased from 0.3 to 2.0 mL/min, suggesting that the extraction is limited by intra-particle diffusion. The 30 min reaction time was determined as an effective treatment time at $250^{\circ}C$. Based on the results, the optimum condition for the remediation of benzo[a]pyrene contaminated soil was suggested to be $250^{\circ}C$, 30 min, and 0.3 mL/min.

Keywords

Subcritical water;Benzo[a]pyrene;Removal efficiency;Extraction;Soil remediation;

References

Ghoreishi, S.M. and Shahrestani, R.G., 2009, Subcritical water extraction of mannitol from olive leaves, J. Food Eng., 93, 474-481.10.1016/j.jfoodeng.2009.02.015
Ho, C.H.L., Cacace, J.E., and Mazza, G., 2008, Mass transfer during pressurized low polarity water extraction of lignans from flaxseed meal, J. Food Eng., 89, 64-71.10.1016/j.jfoodeng.2008.04.003
Islam, M.N., Jo, Y.T., Jung, S.K., and Park, J.H., 2013 Thermodynamic and kinetic study for subcritical water extraction of PAHs, Ind. Eng. Chem., 19, 129-136.10.1016/j.jiec.2012.07.014
Islam, M.N., Jo, Y.T., and Park, J.H., 2012, Remediation of PAHs contaminated soil by extraction using subcritical water, Ind. Eng. Chem., 18, 1689-1693.10.1016/j.jiec.2012.03.013
Jo, Y.-T., Islam, M.N., and Park, J.H., 2013, Influence Factor on Remediation of PAHs-Contaminated Soil by Using Flowing Subcritical Water, J. Soil Groundw. Environ., 18, 1-7.
KFDA, 2010, Risk Profile. Korea Food & Drug Administration (KFDA).
Latawiec, A.E. and Reid, B.J., 2010, Sequential extraction of polycyclic aromatic hydrocarbons using subcritical water, Chemosphere, 78, 1042-1048.10.1016/j.chemosphere.2009.11.029
Li, G.C., Jung, S.K., Chung, S.Y., Jo, Y.T., and Park, J.H., 2011, 2011, Remediation of Diesel Contaminated Soil Using Flowing Subcritical Water, J. Soil Groundw. Environ., 16, 10-16.10.7857/JSGE.2011.16.3.010
Liu, C. and Wyman, C.E., 2003, The Effect of Flow Rate of Compressed Hot Water on Xylan, Lignin, and Total Mass Removal from Corn Stover, Ind. Eng. Chem. Res., 42, 5409-5416.10.1021/ie030458k
Yang, Y. and Hildebrand, F., 2006, Phenanthrene degradation in subcritical water, Anal. Chim. Acta, 555, 364-369.10.1016/j.aca.2005.08.078

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 :13 ~ 17
DOI :https://doi.org/10.7857/JSGE.2014.19.6.013

[1] Ghoreishi, S.M. and Shahrestani, R.G., 2009, Subcritical water extraction of mannitol from olive leaves, J. Food Eng., 93, 474-481.10.1016/j.jfoodeng.2009.02.015

[2] Ho, C.H.L., Cacace, J.E., and Mazza, G., 2008, Mass transfer during pressurized low polarity water extraction of lignans from flaxseed meal, J. Food Eng., 89, 64-71.10.1016/j.jfoodeng.2008.04.003

[3] Islam, M.N., Jo, Y.T., Jung, S.K., and Park, J.H., 2013 Thermodynamic and kinetic study for subcritical water extraction of PAHs, Ind. Eng. Chem., 19, 129-136.10.1016/j.jiec.2012.07.014

[4] Islam, M.N., Jo, Y.T., and Park, J.H., 2012, Remediation of PAHs contaminated soil by extraction using subcritical water, Ind. Eng. Chem., 18, 1689-1693.10.1016/j.jiec.2012.03.013

[5] Jo, Y.-T., Islam, M.N., and Park, J.H., 2013, Influence Factor on Remediation of PAHs-Contaminated Soil by Using Flowing Subcritical Water, J. Soil Groundw. Environ., 18, 1-7.

[6] KFDA, 2010, Risk Profile. Korea Food & Drug Administration (KFDA).

[7] Latawiec, A.E. and Reid, B.J., 2010, Sequential extraction of polycyclic aromatic hydrocarbons using subcritical water, Chemosphere, 78, 1042-1048.10.1016/j.chemosphere.2009.11.029

[8] Li, G.C., Jung, S.K., Chung, S.Y., Jo, Y.T., and Park, J.H., 2011, 2011, Remediation of Diesel Contaminated Soil Using Flowing Subcritical Water, J. Soil Groundw. Environ., 16, 10-16.10.7857/JSGE.2011.16.3.010

[9] Liu, C. and Wyman, C.E., 2003, The Effect of Flow Rate of Compressed Hot Water on Xylan, Lignin, and Total Mass Removal from Corn Stover, Ind. Eng. Chem. Res., 42, 5409-5416.10.1021/ie030458k

[10] Yang, Y. and Hildebrand, F., 2006, Phenanthrene degradation in subcritical water, Anal. Chim. Acta, 555, 364-369.10.1016/j.aca.2005.08.078

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

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