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Soil clean up by in-situ surfactant flushing. III. Laboratory results

Journal Article · · Separation Science and Technology; (USA)

Data on the solubilization of p-dichlorobenzene (DCB), naphthalene, and biphenyl in aqueous solutions of sodium dodecylsulfate (SDS) (0-100 mM concentration) indicate increases in effective solubilities of these hydrophobic compounds by factors of roughly 20 to 100. DCB is effectively removed from spiked clay-sand mixture by leaching with SDS solutions in laboratory columns. Surfactant solutions loaded with DCB are satisfactorily treated by gentle extraction with hexane, and the recovered surfactant solution satisfactorily solubilizes biphenyl. A simple model for predicting the solubilization behavior of surfactants is developed and tested experimentally.

OSTI ID:
6165795
Journal Information:
Separation Science and Technology; (USA), Journal Name: Separation Science and Technology; (USA) Vol. 24:14; ISSN 0149-6395; ISSN SSTED
Country of Publication:
United States
Language:
English