Effects of residual configuration on the rate of trichloroethylene (TCE) dissolution

In order to examine the effects of trichloroethylene (TCE) residual configuration on the TCE dissolution, four different runs are carried out. For these purposes, TCE volumes of 10 and 25 ml are spread over the sand column during packing, or put in the bottom of the bottle before packing the sand. S...

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Bibliographic Details
Published in:Water science and technology 1994-01, Vol.30 (7), p.19-22
Main Authors: Gönüllü, M. Talha, Farquhar, Grahame J.
Format: Article
Language:English
Subjects:
Column packings
Dissolution
Dissolving
Distilled water
Groundwater
Hydrocarbons
Nonaqueous phase liquids
Q1
Sand
Soil
Solvents
Trichloroethene
Trichloroethylene
Water injection
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Summary:In order to examine the effects of trichloroethylene (TCE) residual configuration on the TCE dissolution, four different runs are carried out. For these purposes, TCE volumes of 10 and 25 ml are spread over the sand column during packing, or put in the bottom of the bottle before packing the sand. Soil flushing performed by distilled water injection at a specific discharge of 5.8 × 10−3 cm/s showed that the residual amount of Dense Non-Aqueous Phase Liquid (DNAPL) plays a much greater role on the rate of dissolution. The effect of configurations in the sand column of DNAPL such as ponded residual and spread residual are then studied, and higher concentrations for spread residual are obtained for longer.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1994.0295