- Volume 15 Issue 4
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A Study of a Combined Microwave and Thermal Desorption Process for Contaminated Soil
- Ha, Sang-An (Department of Environmental Engineering, Center for Green Fusion Technology, Silla University) ;
- Choi, Kyoung-Sik (Department of Environmental Engineering, Center for Green Fusion Technology, Silla University)
- Received : 2010.08.27
- Accepted : 2010.11.22
- Published : 2010.12.30
In order to treat soil contaminated with high percentages of water and petroleum, the combined microwave and thermal desorption process was studied, which was composed of the consecutive connection of two pre-treatment processes. For the thickness of the contaminated soil layer on the transfer conveyor belt, the optimal total petroleum hydrocarbon (TPH) removal rate was studied with respect to the duration of microwave exposure in the consecutive process combined with thermal desorption. The TPH removal rate when the contaminated soil layer thickness was 1 cm at 6 kW of microwave power was 80%. The removals rates for 2 and 3 cm soil layer thicknesses were both 70%. Under identical experimental conditions, the TPH removal rate for the microwave pre-treatment, when considering the soil particle size, was over 70%. The lowest TPH removal rate was achieved with a particle diameter of 2.35 mm. For contaminated soil with 30% water content, 6 kW and a thermal desorption temperature of
- Korea Energy Economics Institute, "yearbook of energy statistics", ISSN 1226-606X (2007).
- Kostecki PT, Calabrese EJ. Petroleum contaminated soils. Vol. 1. Remediation techniques environmental fate risk assessment. Chelsea: Lewis Publishers; 1989.
- Bricka, RM, Williford CW, Jones, LW. Heavy metal soil contaminated at U.S. army installations: proposed research and strategy for technology development. Vicksburg: U.S. Army Corps of Engineers; 1994 Mar. Report No.: Technical Report IRRP-94-1.
- Low temperature thermal desorption USA 2005 [Internet]. c2009 [Cited2010 Jun20] Available from: http://www.epa.gov/osw/hazard/tsd/ldr/ldrmetal/p4cappe.pdf
- De Percin PR. Application of thermal desorption technologies to hazardous waste sites. J. Hazard. Mater. 1995;40:203-209. https://doi.org/10.1016/0304-3894(94)00085-U
- Lighty JS, Pershing DW, Cundy VA, Linz DG. Characterization of thermal desorption phenomena for the cleanup of contaminated soil. Nucl. Chem. Waste Manage. 1988;8:225-237. https://doi.org/10.1016/0191-815X(88)90030-7
- George CE, Azwell DE, Adams PA, Rao GVN, Averett DE. Evaluation of steam as a sweep gas in low temperature thermal desorption processes used for contaminated soil clean up. Waste Manage. (Oxford) 1995;15:407-416. https://doi.org/10.1016/S0956-053X(99)80029-4
- Summary report on the NATO/CCMS pilot study on research: development and evaluation of remedial action technologies for contaminated soil and groundwater. Technical status May 1996. Available from: http://www.epa.gov/tio/download/partner/natorep.pdf.
- Lee JK, Park D, Kim B-U, Dong J-I, Lee S. Remediation of petroleum-contaminated soils by fluidized thermal desorption. Waste Manage. (Oxford) 1998;18:503-507. https://doi.org/10.1016/S0956-053X(98)00135-4
- Kang, JSA. Study of remediation for oil-contaminated soil using thermal desorption [dissertation]. Busan: Busan University; 2003.
- Shang H, Snape CE, Kingman SW, Robinson JP. Microwave treatment of oil-contaminated North Sea drill cuttings in a high power multimode cavity. Sep. Purif. Technol. 2006;49:84-90. https://doi.org/10.1016/j.seppur.2005.08.012
- Bucala V, Saito H, Howard JB, Peters WA. Thermal treatment of fuel oil-contaminated soils under rapid heating conditions. Environ. Sci. Technol. 1994;28:1801-1807. https://doi.org/10.1021/es00060a008
- Ministry of Environment, Soil Protection Law, [cited 2010 Nov. 11] Available from: http://www.kossge.or.kr/enviro/soil10.htm.
- Fuller WH. Investigations of landfill leachate pollutant attenuation by soils. Cincinnati: U.S. Environmental Protection Agency; 1978. Report No.: EPA-600/2-78/158.
- Metaxas AC, Meredith RJ. Industrial microwave heating. London: Peregrinus on behalf of the Institution of Electrical Engineers; 1993.
- Lim JH, Hong SS, Lee GD. Applications of energy using microwave. Korean J. Chem. Eng. 2004;42:485-493.
- Jones DA, Lelyveld TP, Mavrofidis SD, Kingman SW, Miles NJ. Microwave heating applications in environmental engineering- A review. Resour. Conservat. Recycl. 2002;34:75-90. https://doi.org/10.1016/S0921-3449(01)00088-X
- Gabriel C, Gabriel S, Grant EH, Halstead BSJ, Michael P Mingos D. Dielectric parameters relevant to microwave dielectric heating. Chem. Soc. Rev. 1998;27:213-223. https://doi.org/10.1039/a827213z
- Wei CK, Davis HT, Davis EA, Gordon J. Heat and mass transfer in water-laden sandstone: Microwave heating. AlChE J. 1985;31:842-848. https://doi.org/10.1002/aic.690310521
- Ayappa KG, Davis HT, Davis EA, Gordon J. Analysis of microwave heating of materials with temperature-dependent properties. AlChE J. 1991;37:313-322. https://doi.org/10.1002/aic.690370302
- Mon KW, Kim YH, Lee BC. Microwave remediation of soil contaminated by volatile organic chemical. Korean J. Environ. Health 1996;22:116-122.
- Osepchuk JM. History of microwave heating applications. IEEE Trans. Microwave Theory Tech. 1984;32:1200-1224. https://doi.org/10.1109/TMTT.1984.1132831
- McAdams CL. New technologies in soil remediation. Waste Age 1994;25:36-42.