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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The removal of non-aqueous phase liquids (NAPLs) from groundwater using pure water, via pump and treat, is quite ineffective due to their low solubility and hydrophobicity. Therefore, the objectives of pilot tests were to select potentially suitable surfactants that solubilize tetrachloroethylene (PCE) and trichloroethylene (TCE) present as contaminants and to evaluate the optimal range of process parameters that can increase the removal efficiency in surfactant-enhanced soil flushing (SESF). Used experimental method for surfactant selection was batch experiments. The surfactant solution parameters for SESF pilot tests were surfactant solution concentration, surfactant solution pH, and the flow rate of surfactant solution in the SESF pilot system. Based on the batch experiments for surfactant selection, DOSL (an anionic surfactant) was selected as a suitable surfactant that solubilizes PCE and TCE present as contaminants. The highest recovery (95%) of the contaminants was obtained using a DOSL surfactant in the batch experiments. The pilot test results revealed that the optimum conditions were achieved with a surfactant solution concentration of 4% (v/v), a surfactant solution pH of 7.5, and a flow rate of 30 L/min of surfactant solution (Lee and Woo, 2015). The maximum removal of contaminants (89%) was obtained when optimum conditions were simultaneously met in pilot-scale SESF operations. These results confirm the viability of SESF for treating PCE and TCE-contaminated groundwater.
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참고문헌 (20)
참고문헌 신청
Adeel, Z. / 1995 / Sorption and transport kinetics of a nonionic surfactant through an aquifer sediment / Environ. Sci. Technol 29:1032~1042
Chang, D.L. / 1984 / Interaction of long chain dimethylamine oxide with sodium dodecyl sulfate in water / Am. Chem. Soc. Symp. Ser :129~140
Deshpande, S. / 2000 / Dowfax surfactant components for enhancing contaminant solubilization / Water Research 34:1030~1036
Feng, D. / 2001 / Exsitu diesel contaminated soil washing with mechanical methods / Miner. Eng 14:1093~1100
Harwell, J.H. / 1992 / Factors affecting surfactant performance in groundwater remediation application / Am. Chem. Soc. Symp. Ser 491:124~131
Chang, D.L. / 1984 / Interaction of long chain dimethylamine oxide with sodium dodecyl sulfate in water / Am. Chem. Soc. Symp. Ser :129~140
Deshpande, S. / 2000 / Dowfax surfactant components for enhancing contaminant solubilization / Water Research 34:1030~1036
Feng, D. / 2001 / Exsitu diesel contaminated soil washing with mechanical methods / Miner. Eng 14:1093~1100
Harwell, J.H. / 1992 / Factors affecting surfactant performance in groundwater remediation application / Am. Chem. Soc. Symp. Ser 491:124~131
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