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http://dx.doi.org/10.7857/JSGE.2018.23.2.015

Heavy Metals Extraction from Contaminated Soils using Aqua Regia Extraction  

Lee, Dukyoung (Department of Environmental Engineering, Kumoh National Institute of Technology)
Jung, Sunkook (ENPLUS Co., Ltd)
Son, Younggyu (Department of Environmental Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of Soil and Groundwater Environment / v.23, no.2, 2018 , pp. 15-22 More about this Journal
Abstract
Aqua regia extraction for the quantification of heavy metals and As in contaminated soils was investigated as one of preliminary steps for on-site monitoring using sensor technology. Soil samples were taken from closed railway depot, closed mines, and closed refinery and various extraction conditions including $30^{\circ}C/15min$, $30^{\circ}C/30min$, $30^{\circ}C/60min$, $30^{\circ}C/120min$, $80^{\circ}C/15min$, $80^{\circ}C/30min$, $80^{\circ}C/60min$, $80^{\circ}C/120min$ were tested. The optimal extraction condition was determined as $80^{\circ}C/60min$ because the extraction efficiencies of Zn were relatively low and did not reach the targeted level (80-100% of original concentrations) for $30^{\circ}C$ conditions. It was found that the fractionation of heavy metals and As using the sequential extraction method was useful to understand the degree of metal extraction. In order to enhance the extraction efficiency within short extraction time, ultrasound technology using a 20 kHz horn-type sonicator was additionally used for $30^{\circ}C/15min$. It was revealed that ultrasound could significantly enhance the extraction efficiency and pulsed irradiation showed higher efficiency than continuous irradiation due to the less formation of bubble clouds. However high temperature condition ($80^{\circ}C$) was required to achieve high extraction efficiency for Zn in spite of the use of ultrasound.
Keywords
Heavy metals; As; Extraction; Aqua regia; Sequential extraction; Ultrasound;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Adams, S.J. and Alloway, B.J., 1988, The effects of variations in temperature on the extraction of trace metals from soils by selected reagents, Environ. Technol. Lett., 9, 695-702.   DOI
2 Al-Juboori, R.A., Aravinthan, V., and Yusaf, T., 2015, Impact of pulsed ultrasound on bacteria reduction of natural waters, Ultrason. Sonochem., 27, 137-147.   DOI
3 Alghanmi, S.I., Al Sulami, A.F., El-Zayat, T.A., Alhogbi, B.G., and Salam, M.A., 2015, Acid leaching of heavy metals from contaminated soil collected from Jeddah, Saudi Arabia: kinetic and thermodynamics studies, Int. Soil Water Conserv. Res., 3, 196-208.   DOI
4 Bacon, J.R. and Davidson, C.M., 2008, Is there a future for sequential chemical extraction?, Analyst, 133, 25-46.   DOI
5 Benschoten, J.E.V., Matsumoto, M.R., and Young, W.H., 1997, Evaluation and analysis of soil washing for seven lead-contaminated soils, J. Environ. Eng., 123, 217-224.   DOI
6 Deshmukh, S., Bandyopadhyay, R., Bhattacharyya, N., Pandey, R.A., and Jana, A., 2015, Application of electronic nose for industrial odors and gaseous emissions measurement and monitoring - An overview, Talanta, 144, 329-340.   DOI
7 Glasgow, H.B., Burkholder, J.M., Reed, R.E., Lewitus, A.J., and Kleinman, J.E., 2004, Real-time remote monitoring of water quality: a review of current applications, and advancements in sensor, telemetry, and computing technologies, J. Exp. Mar. Biol. Ecol., 300, 409-448.   DOI
8 Hwang, S., Lee, N., and Namkoong, W., 2005, The extraction characteristics of metal-contaminated soil by soil washing, J. Kor. Soc. Environ. Eng., 27(10), 1072-1080.
9 Jung, M.C., 1994, Sequential extraction of heavy metals in soils and a case study, Econ. Environ. Geol., 27(5), 469-477. and a case study, Econ. Environ. Geol., 27(5), 469-477.
10 Kim, E.J. and Baek, K., 2014, Effect of metal speciations on heavy metal removal from contaminated soils, J. Kor. Soc. Environ. Anal., 17(2), 88-94.
11 Li, M., Gou, H., Al-Ogaidi, I., and Wu, N., 2013, Nanostructured sensors for detection of heavy metals: A review, ACS Sustain. Chem. Eng., 1, 713-723.   DOI
12 Shin, Y., Lee, C., Yoo, J., Yang, J., Kim, H., and Baek, K., 2015, Mechanism on extraction of heavy metals from soil by ultrasonication, J. Soil. Groundw. Environ., 20(1), 28-35.   DOI
13 Moon, S., Ha, K., Kim, Y., Koh, D., and Yoon, H., 2014, Examination for Efficiency of Groundwater Artificial Recharge in Alluvial Aquifer Near Nakdong River of Changweon Area, Korea, Econ. Environ. Geol., 47(6), 611-623.   DOI
14 Oh, S. and Yoon, M., 2015, Chemical extraction of arsenic and heavy metals from contaminated soils under high temperature and pressure conditions in abandoned mines in South Korea, Soil Sediment Contam. Int. J., 24, 423-436.   DOI
15 Park, B. and Son, Y., 2017, Ultrasonic and mechanical soil washing processes for the removal of heavy metals from soils, Ultrason. Sonochem., 35, Part B, 640-645.   DOI
16 Shuman, L.M., 1980, Effects of soil temperature, moisture, and air-drying on extractable manganese, iron, copper, and zinc, Soil Sci., 130(6), 336-343.   DOI
17 Son, Y., Lim, M., Khim, J., and Ashokkumar, M., 2012, Acoustic emission spectra and sonochemical activity in a 36 kHz sonoreactor, Ultrason. Sonochem., 19, 16-21.   DOI
18 Storey, M.V., Gaag, B., and Burns, B.P., 2011, Advances in on-line drinking water quality monitoring and early warning systems, Water Res., 45, 741-747.   DOI
19 USEPA, 2004, Multi-Agency Radiological Laboratory Analytical Protocols Manual (MARLAP).
20 Veeken, A.H.M. and Hamelers, H.V.M., 1999, Removal of heavy metals from sewage sludge by extraction with organic acids, Water Sci. Technol., 40, 129-136.
21 Wilson, A.D., 2012, Review of electronic-nose technologies and algorithms to detect hazardous chemicals in the environment, Proc. Tech., 1, 453-463.   DOI
22 Wang, X., Ma, X., Church, J., Jung, S., Son, Y., Lee, W.H., and Cho, H.J., 2017, ZnO nanoflakes as a template for in-situ electrodeposition of nanostructured cobalt electrodes as amperometric phosphate sensors, Mater. Lett., 192, 107-110.   DOI
23 Wenzel, W.W., Kirchbaumer, N., Prohaska, T., Stingeder, G., Lombi, E., and Adriano, D.C., 2001, Arsenic fractionation in soils using an improved sequential extraction procedure, Anal. Chim. Acta, 436, 309-323.   DOI