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Korean Journal of Chemical Engineering, Vol.28, No.4, 1065-1069, 2011
Removal of polyaromatic hydrocarbons from scrap tires by solvent extraction
This study analyzes polycyclic aromatic hydrocarbon (PAH) compounds released from scrap tires by GC/MS and introduces a simple extraction process at ambient conditions to remove PAHs from scrap tires. The PAH species released from scrap tires included seven PAH compounds with high molecular weight and 4- and 5-aromatic rings and total-PAH content of 159 mg/L. When scrap tires were extracted using hot water (180 ℃) for 3 h, the overall removal
efficiency was 53%, indicating that PAHs were not adequately removed by this method. However, using organic solvents, the overall PAH removal efficiency improved to 82% for propionic acid and 70% for acetic acid, because the mass transfer of PAHs within scrap tires increases with decreasing dielectric constant. The PAH removal efficiency was dependent on solvent type and temperature.
[References]
- Giray ES, Sonmez O, Fuel Process. Technol., 85(4), 251, 2004
- San Miguel G, Fowler GD, Sollars CJ, Ind. Eng. Chem. Res., 37(6), 2430, 1998
- Vizuete EM, Garcia AM, Gisbert AN, Gonzalez CF, Serrano VG, Micropor. Mesopor. Mater., 67, 35, 2004
- Chien YC,Ton S, Lee MH, Chia T, Shu HY, Wu YS, Sci. Total Environ., 309, 35, 2003
- Simpson CD, Cullen WR, Quinlan KB, Reimer KJ, Chemosphere., 31, 4143, 1995
- Levitt JS, N’Guessan AL, Rapp KL, Nyman MC, Water Res., 37, 3016, 2003
- Jacinto MJ, Santos OHCF, Landers R, Kiyohara PK, Rossi LM, Appl. Catal. B: Environ., 90(3-4), 688, 2009
- Kronholm J, Kalpala J, Hartonen K, Riekkola ML, J. Supercrit. Fluids, 23(2), 123, 2002
- Zuloaga O, Fitzpatrick LJ, Etxebarria N, Dean JR, J. Environ. Monit., 2, 634, 2000
- Vandenburg HJ, Clifford AA, Bartle KD, Carlson RE, Carroll J, Newton ID, Analyst., 124, 1707, 1999
- Hartonen K, Meissner G, Kesala T, Riekkola ML, J. Microcolumn Sep., 12, 412, 2000
- Ferrarese E, Andreottola G, Oprea IA, J. Hazard. Mater., 152(1), 128, 2008
- Wild SR, Jones KC, Environ. Pollut., 88, 91, 1995
- Bonten LTC, Grotenhuis TC, Rulkens WH, Chemosphere., 38, 3627, 1999
- Cornelissen G, Noort PCMV, Parsons JR, Govers HAJ, Environ. Sci. Technol., 31, 454, 1997
[Cited By]
- Lee JK, Jeong SG, Koo SJ, Kim SY, Ju CS, Korean Chemical Engineering Research, 51(1), 53, 2013
- Rhee GH, Hwangbo SB, Yoo CK, Korean Chemical Engineering Research, 56(4), 479, 2018
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