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2022 Vol.27, Issue 5 Preview Page
Evaluation on Soil Washing of Metal-contaminated Soil using Non-Inorganic Acids

비 무기산 세척제에 의한 중금속 오염 토양 세척효과 평가

Ga-Bin Lee1†
,
Won-Gune Jeong1†
,
Su-Min Lee1
,
Jin Park1
,
Yong-Hwan Jo1
,
Kitae Baek1*
이 가빈1†
,
정 원균1†
,
이 수민1
,
박 진1
,
조 용환1
,
백 기태1*
1Department of Environment & Energy and Soil Environment Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin, Jeonju, Jeollabukdo 54896, Republic of Korea
1전북대학교 환경에너지융합학과 및 토양환경연구센터
*Corresponding Author
†These authors contributed equally to this work.
31 October 2022. pp. 10-17
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Abstract

Inorganic acids such as HCl, HNO3, and H2SO4 have been commonly applied to soil washing of heavy metals-contaminated soil due to their cost-effectiveness. However, implementing the ‘Chemical Substance Control Act’ requires off-site risk assessment of the chemicals used in the soil washing. Therefore, in this study, organic acids or Fe(III)-based washing agents were evaluated to replace commonly used inorganic acids. Ferric removed heavy metals via H+ generated by hydrolysis, which is similar to the HCl used in the control group. Oxalic acid and citric acid were effective to remove Cu, Zn, and Cd from soil. Organic acids could not remove Pb because they could form Pb-organic acid complexes with low solubility. Furthermore, Pb could be adsorbed onto the iron-organic acid complex on the soil surface. Ferric could remove exchangeable-carbonate, Fe-Mn hydroxide, and organic matter and sulfides bound heavy metals (F1, F2, and F3). Organic acids could remove the exchangeable-carbonate and Fe-Mn hydroxide bound metals (F1&F2). Therefore, this research shows that the fractionation of heavy metals in the soil and the properties of washing agents should be considered in the selection of agents in the process design.

Keywords
Soil washing
Heavy metal
Ferric chloride
Organic acid
References
1

Feng, W., Zhang, S., Zhong, Q., Wang, G., Pan, X., Xu, X., Zhou, W., Li, T., Luo, L., and Zhang, Y., 2020, Soil washing remediation of heavy metal from contaminated soil with EDTMP and PAA: Properties, optimization, and risk assessment, J. Hazard. Mater., 381, 120997.

10.1016/j.jhazmat.2019.120997
2

Ke, X., Zhang, F.J., Zhou, Y., Zhang, H.J., Guo, G.L., and Tian,Y., 2020, Removal of Cd, Pb, Zn, Cu in smelter soil by citric acid leaching, Chemosphere, 255, 126690.

10.1016/j.chemosphere.2020.126690
3

Kim, D.-H., Hwang, B.-R., Her, N., Jeong, S., and Baek,K., 2014, Environmental impact of soil washing process based on the CO2emissions and energy consumption, Korean Chem. Eng. Res., 52(1), 119-125.

10.9713/kcer.2014.52.1.119
4

Kim, E.J. and Baek, K., 2014, Effect of metal speciations on heavy metal removal from contaminated soils, J. Korean Soc. Environ. Anal., 17(2), 88-94.

5

Kim, H., Cho, K., Purev, O., Choi, N., and Lee, J., 2022, Remediation of toxic heavy metal contaminated soil by combining a washing ejector based on hydrodynamic cavitation and soil washing process, Int. J. Environ. Res. Public Health, 19(2), 786.

10.3390/ijerph1902078635055606PMC8776021
6

Kim, J.-O., Lee, Y.-W., and Chung, J., 2013, The role of organic acids in the mobilization of heavy metals from soil, KSCE J. Civ. Eng., 17(7), 1596-1602.

10.1007/s12205-013-0323-z
7

Lee, J.C., Kim, E.J., and Baek, K., 2017, Synergistic effects of the combination of oxalate and ascorbate on arsenic extraction from contaminated soils, Chemosphere, 168, 1439-1446.

10.1016/j.chemosphere.2016.11.155
8

Lee, J.-C., Kim, E.J., Kim, H.-W., and Baek, K., 2016, Oxalatebased remediation of arsenic bound to amorphous Fe and Al hydrous oxides in soil, Geoderma, 270, 76-82.

10.1016/j.geoderma.2015.09.015
9

Lee, J.-H. and Park, K.-S., 2010, Comparison of soil washing for heavy metal contaminated shooting range using various extracts, Econ. Environ. Geol., 43(2), 123-136.

10

Lee, M.E., Jeon, E.-K., Kim, J.-G., and Baek, K., 2018, Oxalic acid-based remediation of arsenic-contaminated soil, J. Soil Groundwater Environ., 23(1), 85-91.

10.7857/JSGE.2018.23.1.085
11

Lee, M.E., Jeon, E.K., Tsang, D.C.W., and Baek, K., 2018, Simultaneous application of oxalic acid and dithionite for enhanced extraction of arsenic bound to amorphous and crystalline iron oxides, J. Hazard. Mater., 354, 91-98.

10.1016/j.jhazmat.2018.04.083
12

Moon, D.H., Park, J.-W., Koutsospyros, A., Cheong, K.H., Chang, Y.-Y., Baek, K., Jo, R., and Park, J.-H., 2016, Assessment of soil washing for simultaneous removal of heavy metals and low-level petroleum hydrocarbons using various washing solutions, Environ. Earth Sci., 75(884).

10.1007/s12665-016-5690-6
13

Oh, S., Yoo, J., Baek, K., Kim, H., and Park, J., 2018, Research with statistical model to analyze efficiency of heavy metal soil washing, J. Soil Groundwater Environ., 23(1), 14-24.

10.7857/JSGE.2018.23.1.014
14

Park, S.-M., Kim, T., Kim, Y.-H., and Baek, K., 2021, Hybrid process of combined soil washing and selective adsorption to treat Cs-contaminated soil, Chem. Eng. J., 423, 129921.

10.1016/j.cej.2021.129921
15

Rauret, G., López-Sánchez, J.F., Sahuquillo, A., Rubio, R., Davidson, C., Ure, A., and Quevauviller, P., 1999, Improvement of the BCR three step sequential extraction procedure prior to the certification of new sediment and soil reference materials, J. Environ. Monit., 1(1), 57-61.

10.1039/a807854h
16

Sarı, Z.A., Turan, M.D., Nizamoğlu, H., Demiraslan, A., and Depci, T., 2020, Selective copper recovery with HCl leaching from copper oxalate material, Min. Metall. Explor., 37(3), 887-897.

10.1007/s42461-020-00196-8
17

Shin, S.-Y., Park, S.-M., and Baek, K., 2016, Electrokinetic removal of as from soil washing residue, Water Air Soil Pollut., 227(223).

10.1007/s11270-016-2918-8
18

Wuana, R.A., Okieimen, F.E., and Imborvungu, J.A., 2010, Removal of heavy metals from a contaminated soil using organic chelating acids, Int. J. Environ. Sci. Technol., 7(3), 485-496.

10.1007/BF03326158
19

Yang, J.-S., Hwang, J.-M., Baek, K., and Kwon, M.J., 2013, Soil washing and effluent treatment for contaminated soil with toxic metals, Korean Chem. Eng. Res., 51(6), 745-754.

10.9713/kcer.2013.51.6.745
20

Yoo, J., Jeon, P., Tsang, D.C.W., Kwon, E.E., and Baek, K., 2018, Ferric-enhanced chemical remediation of dredged marine sediment contaminated by metals and petroleum hydrocarbons, Environ. Pollut., 243, 87-93.

10.1016/j.envpol.2018.08.044
21

Yoo, J.C., Jeon, P.Y., Tsang, D.C.W., Kwon, E.E., and Baek, K., 2018, Ferric-enhanced chemical remediation of dredged marine sediment contaminated by metals and petroleum hydrocarbons, Environ. Pollut., 243(Pt A), 87-93.

10.1016/j.envpol.2018.08.044
22

Yoo, J.C., Lee, C., Lee, J.S., and Baek, K., 2017, Simultaneous application of chemical oxidation and extraction processes is effective at remediating soil Co-contaminated with petroleum and heavy metals, J. Environ. Manage., 186(Pt 2), 314-319.

10.1016/j.jenvman.2016.03.016
23

Yoo, J.-C., Lee, C.-D., Yang, J.-S., and Baek, K., 2013, Extraction characteristics of heavy metals from marine sediments, Chem. Eng. J., 228, 688-699.

10.1016/j.cej.2013.05.029
24

Yoo, J.C., Park, S.M., Yoon, G.S., Tsang, D.C.W., and Baek, K., 2017, Effects of lead mineralogy on soil washing enhanced by ferric salts as extracting and oxidizing agents, Chemosphere, 185, 501-508.

10.1016/j.chemosphere.2017.07.046
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 : 27
  • No :5
  • Pages :10-17
  • Received Date : 2022-08-23
  • Revised Date : 2022-08-30
  • Accepted Date : 2022-10-12
  • DOI :https://doi.org/10.7857/JSGE.2022.27.5.010
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