Removal of semivolatiles from soils by steam stripping. III. Steam dynamics and the stripping of contaminants in a column

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Separation Science and Technology

DOI:https://doi.org/10.1080/01496399508013874· OSTI ID:273507

Rodriguez-Maroto, J M; Gomez-Lahoz, C; Wilson, D J ^[1]; Clarke, A N ^[2]

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1. Universidad De Malaga (Spain)
2. Eckenfelder, Inc., Nashville, TN (United States)

The initial transients during the heating phase of steam stripping of soil in a column are examined and found to be typically of very short duration compared to the time required for the steam flow to dry and soil. Two one-dimensional models for steam stripping are developed which include these transients. The first permits semivolatile organic compounds to be present as nonaqueous phase liquid or dissolved, and postulates the validity of Henry`s law and of the local equilibrium assumption. The second includes the effects of diffusion kinetics. The dependence of soil remediation rates on the parameters of the models is explored. The use of steam stripping for the remediation of soils contaminated with Lindane and its congeners is discussed.

• Sponsoring Organization: USDOE
• OSTI ID: 273507
• Journal Information: Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 3 Vol. 30; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS
DIFFUSION
EVAPORATION
HEATING
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
POLLUTANTS
REMEDIAL ACTION
REMOVAL
SOILS
STEAM STRIPPING
VOLATILE MATTER