Vapor phase VOC transport in physically-mixed clay soils

Conference · Thu Sep 01 00:00:00 EDT 1994

OSTI ID:10182862

Carpenter, M D; Gierke, J S ^[1]; Siegrist, R L; West, O R ^[2]

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1. Michigan Technological Univ., Houghton, MI (United States). Dept. of Geological Engineering, Geology, and Geophysics
2. Oak Ridge National Lab., TN (United States)

Experiments were conducted to provide insight into the controlling removal mechanisms for a mixed region vapor stripping process in clay soils. Results of soil column experiments were compared to a mathematical model to determine intra-aggregate diffusion coefficients and sorption coefficients at different temperatures. Under the assumption that intra-aggregate diffusion was the rate limiting removal mechanism, the mathematical model predicted the removal of trichloroethylene at 20{degrees}C, 40{degrees}C, and 60{degrees}C. Agreement between the experimental observations and the model were very good. Faster removal of TCE was observed with increasing temperature.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10182862
• Report Number(s): CONF-931113-1; ON: DE94018702; TRN: 94:008785
• Resource Relation: Conference: Conference on petroleum hydrocarbons and organic chemicals in ground water: prevention, detection and restoration,Houston, TX (United States),10-12 Nov 1993; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
SOILS
CONTAMINATION
LAND POLLUTION CONTROL
ETHYLENE
ECOLOGICAL CONCENTRATION
VAPORS
EXTRACTION
TEMPERATURE DEPENDENCE
ENVIRONMENTAL TRANSPORT
CLAYS
REMEDIAL ACTION
MATHEMATICAL MODELS
VOLATILE MATTER
ORGANIC COMPOUNDS
540220
CHEMICALS MONITORING AND TRANSPORT