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Selection of Surfactant and Operation Scheme for Improved Efficiency of In-situ Soil Flushing Process  

Son, Bong-Ho (Department of Environmental Engineering, Daejeon University)
Lim, Bong-Su (Department of Environmental Engineering, Daejeon University)
Oa, Seong-Wook (Department of Railroad, Civil & Environmental Engineering, Woosong University)
Lee, Byung-Ho (Chong-lim, INC.)
Publication Information
Journal of Korean Society on Water Environment / v.22, no.5, 2006 , pp. 824-830 More about this Journal
Abstract
Several tests were conducted to optimize the design parameters of ln-situ soil flushing processes for diesel contaminated soil. According to the batch extraction test for three anionic surfactants evaluation, Calgonit limiting bubble occurrence was selected for its higher oil cleaning efficiency. After optimum surfactant selection, there were many sets of column flushing test. Over 70% of BTEX was removed in this surfactant dose with 400% of soil volume. In the case of no surfactant addition flushing in column, so called "blank flushing test", BTEX removal rate was 64%. But when we reused the effluent for the cleaning solution, the removal rate was decreased to 46.9%. This result showed reabsorption of oil occurred on the soil. With the addition of Calgonit solution to the diesel contaminated column, BTEX was removed up to 98.9% during the first flushing and 99.4% for the second recirculation flushing. In microcosm tests, diesel contaminated soils were cleaned by both surfactant flushing and biological activities. In anoxic condition, nitrate was used as an electron acceptor while the surfactant and the oil were used an electron donor. BTEX removal efficiency could be achieved up to 80% by biological degradation.
Keywords
Anion surfactant; BTEX; Calgonit; Microcosm; Soil flushing;
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1 김용식, 손영규, 김지형, 송지현, Toluen의 생물학적 분해능 향상을 위한 계면활성제의 선정, 지하수토양환경, 10(4), pp. 26-32 (2005)
2 염익태, 안규홍, 계면활성제를 이용한 In-situ 토양세척, 한국토양환경학회지, 2(2) pp. 9-24 (1997)
3 이민효, 토양 . 지하수오염, 동화기술, pp. 89-90 (2003)
4 이민희, 정상용, 최상일, 강동환, 김민철, 계면활성제 원위치 토양세정법을 이용한 유류 오염지역의 토양, 지하수 정화 실증 시험, 지하수토양환경, 7(4), pp. 77-86 (2002)
5 Liu, Z., Laha, S. and Luthy, R. G., Surfactant Soluilization of Polycyclic Aromatic Hydrocarbon Compounds in Soil-water Suspensions, Wat. Sci. Tech., 23, pp. 475-485 (1991)   DOI
6 Saito, H. and Shnoda, K., The Solubilization of Hydrocarbons in Aqueous Solutions of Nonionic Surfactants, J. Colloid Interface Sci., 24, pp. 10-15 (1967)   DOI   ScienceOn
7 황정성, 최상일, 장민, 비소로 오염된 토양에 대한 토양세척 기법의 적용성 연구, 지하수토양환경, 9(1), pp. 104-111 (2004)
8 이재원, 박규홍, 박준범, 포화지층내 저비중 비수용성 유기 용매의 유통제거를 위한 계면활성제법의 조작인자 도출, 대한환경공학회지, 21(11), pp. 2059-2070 (1999b)
9 이재원, 박규홍, 박준범, 포화지층내 저비중 비수용성 유기 용매의 용해제거를 위한 계면활성제법의 최적 조작인자 도출, 한국지반공학회, 15(2), pp. 153-164 (1999c)
10 이재원, 박규홍, 박준범, LNAPL로 오염된 토양의 정화를 위한 계면 활성제 세척법 적용에 있어서 BTEX 및 계면 활성제의 흡착특성 분석, 한국물환경학회지, 15(4), pp. 555-570 (1999a)
11 Tokiwa, F., Solubilization Behavior of Sudium Dodecylpolyxyethylene SuIfates in Relation to Their Polyoxyethylene Chain Lengths, J. Phys. Chem., 72, pp. 1214-1217 (1968)   DOI
12 Saito, S., Solubilization Properties of Polymer-Surfactant Complexes, J. Colloid Interface Sci. 24, pp. 227-234 (1967)   DOI   ScienceOn
13 최상일, 소정헌, 조장환, 계면활성제 원위치 토양세정 기법 적용을 위한 기초 특성 연구, 지하수토양환경, 7(4), pp. 87-91 (2002)
14 Yeom, I. T. and Ghosh, M. M., Surfactants in Mobilizing Soil-bound Polycyclic Aromatic Hydrocarbons Using Nnonionic Surfactant, Proceedings CSCE-ASCE national conference on environment engineering(NCEE), Montreal, Canada, pp. 1342-1352 (1993)
15 Rosen, M. J., Surfactant and Interfacial Phenomena, Chap., 3-4, 2nd ed., John Willy & Sons, Inc., New York (1989)
16 환경부, 토양오염공정시험방법, 동화기술, pp. 658-661 (2002)
17 Attwood, D. and Florence, A. T., Surfactant System; Their Chemistry, Pharmacy and Biology, chap. 5, Chapman and Hill, Inc., New York, NY (1983)
18 Groundwater Remediation Technologies Analysis Center (GWRTAC), Technology Evaluation Report; Surfactant/ Co-solvent (1996)