Econ. Environ. Geol. 2013; 46(5): 425-444

Published online October 30, 2013

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Degradation of TPHs, TCE, PCE, and BTEX Compounds for NAPLs Contaminated Marine Sediments Using In-Situ Air Sparging Combined with Vapor Extraction

Jun-Ho Lee*, Sun-Hyang Han and Kap-Song Park

Department of Environmental Science and Engineering, Hankuk University of Foreign Studies, 81, Oedae-ro, Mohyeon-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do, 440-791 Republic of Korea

Correspondence to : hanul@hufs.ac.kr

Received: May 18, 2013; Revised: August 22, 2013; Accepted: October 6, 2013

Abstract

This study was carried out in order to determine the remediation of total petroleum hydrocarbons (TPHs), trichloroethylene (TCE), perchloroethylene (PCE), benzene, toluene, ethylbenzene and xylenes (BTEX) compounds for non-aqueous phase liquids (NAPLs) using in-situ air sparging (IAS) / vapor extraction (VE) with the marine sediments of Mandol, Hajeon, Sangam and Busan, South Korea. Surface sediment of Mandol area had sand characteristics (average particle size, 1.789 Φ), and sandy silt characteristics (average particle size, 5.503 Φ), respectively. Sangam surface sediment had silt characteristics (average particle size, 5.835 Φ). Sediment characteristics before experiment in the Busan area showed clay characteristics (average particle size, 8.528 Φ). TPHs level in the B1 column of Mandol, Hajeon, Sangam, and Busan sediments were 2,459, 6,712, 4,348, and 14,279 ppm. B2 (3 L/ min) to B5 (5 L/min) columns reduced 99.5% to 100.0% of TCE and 93.2% to 100.0% of PCE. Removal rates of TCE, PCE, and BTEX are closely correlated (0.90-0.99) with particle sizes and organic carbon concentrations. However, TPHs (0.76) and benzene (0.71) showed the poorer but moderate correlations with the same parameters.

Keywords in-situ air sparging, non-aqueous phase liquids, remediation, particle size, vapor extraction

Article

Econ. Environ. Geol. 2013; 46(5): 425-444

Published online October 30, 2013

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Degradation of TPHs, TCE, PCE, and BTEX Compounds for NAPLs Contaminated Marine Sediments Using In-Situ Air Sparging Combined with Vapor Extraction

Jun-Ho Lee*, Sun-Hyang Han and Kap-Song Park

Department of Environmental Science and Engineering, Hankuk University of Foreign Studies, 81, Oedae-ro, Mohyeon-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do, 440-791 Republic of Korea

Correspondence to:hanul@hufs.ac.kr

Received: May 18, 2013; Revised: August 22, 2013; Accepted: October 6, 2013

Abstract

This study was carried out in order to determine the remediation of total petroleum hydrocarbons (TPHs), trichloroethylene (TCE), perchloroethylene (PCE), benzene, toluene, ethylbenzene and xylenes (BTEX) compounds for non-aqueous phase liquids (NAPLs) using in-situ air sparging (IAS) / vapor extraction (VE) with the marine sediments of Mandol, Hajeon, Sangam and Busan, South Korea. Surface sediment of Mandol area had sand characteristics (average particle size, 1.789 Φ), and sandy silt characteristics (average particle size, 5.503 Φ), respectively. Sangam surface sediment had silt characteristics (average particle size, 5.835 Φ). Sediment characteristics before experiment in the Busan area showed clay characteristics (average particle size, 8.528 Φ). TPHs level in the B1 column of Mandol, Hajeon, Sangam, and Busan sediments were 2,459, 6,712, 4,348, and 14,279 ppm. B2 (3 L/ min) to B5 (5 L/min) columns reduced 99.5% to 100.0% of TCE and 93.2% to 100.0% of PCE. Removal rates of TCE, PCE, and BTEX are closely correlated (0.90-0.99) with particle sizes and organic carbon concentrations. However, TPHs (0.76) and benzene (0.71) showed the poorer but moderate correlations with the same parameters.

Keywords in-situ air sparging, non-aqueous phase liquids, remediation, particle size, vapor extraction

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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