Partitioning effects of nonionic surfactants on the solubilization of single or binary chlorinated solvents: Batch and column experiments

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The interaction between surfactants and a dense non-aqueous phase liquid (DNAPL) was investigated. The partitioned amounts of nonionic surfactants to the DNAPL increased with an increase in the surfactant hydrophobicity and a decrease in the interfacial tension. Alcohol enhanced the surfactant loss. With the binary component of the DNAPL, the molar micellar solubilization was not ideal, and the solubilized extent of DNAPL with binary components by the surfactant was larger than with a single component. In surfactant flushing for a DNAPL contaminated sand column, the small amount of partitioned surfactant to the DNAPL facilitated the mobilization of the DNAPL. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE INC
Issue Date
2018-02
Language
English
Article Type
Article
Keywords

NONAQUEOUS PHASE LIQUID; MIXED SURFACTANT; BEHAVIOR; REMEDIATION; MIXTURES; DNAPLS; WATER

Citation

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.58, pp.140 - 147

ISSN
1226-086X
DOI
10.1016/j.jiec.2017.09.018
URI
http://hdl.handle.net/10203/240554
Appears in Collection
CBE-Journal Papers(저널논문)
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