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Sediment- and saturated-soil-associated reactions involving an anionic surfactant (dodecylsulfate). 2. Partition of PAH compounds among phases

Technical Report ·
OSTI ID:5203207
The distribution of either pyrene, phenanthrene, or naphthalene between several different sediment or soil solid phases (media) and aqueous phases containing dodecylsulfate (DS) micelles was determined. These experimental distributions were compared to distributions calculated from relationships describing the sorption of polycyclic aromatic hydrocarbons (PAHs) to sediments and soils and PAH solubilization by DS micelles, reported in the literature or developed from literature data. The amount of aqueous-phase surfactant in micellar form was calculated from equations describing micelle-monomer equilibria in homogeneous solution. Experimental overall distribution coefficients of pyrene and phenanthrene, measured in five different media at two medium concentrations, generally were within a factor of 3 of the calculated distribution coefficients. The calculated and experimental distributions indicate that, on an organic-carbon-normalized basis (w/w), DS micelles and the natural media have approximately the same affinity or sorption potential for these nonpolar compounds.
Research Organization:
Environmental Protection Agency, Athens, GA (United States). Environmental Research Lab.
OSTI ID:
5203207
Report Number(s):
PB-91-219089/XAB
Country of Publication:
United States
Language:
English

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Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
AROMATICS
CONDENSED AROMATICS
CONTAMINATION
CONTROL
DISTRIBUTION
HYDROCARBONS
LAND POLLUTION CONTROL
MICELLAR SYSTEMS
NAPHTHALENE
ORGANIC COMPOUNDS
PHASE STUDIES
PHENANTHRENE
POLLUTION CONTROL
PYRENE
SEDIMENTS
SOILS
SOLUBILITY
SORPTION
SORPTIVE PROPERTIES
SPATIAL DISTRIBUTION
SURFACE PROPERTIES
SURFACTANTS
WATER POLLUTION CONTROL