Enhance performance of soil vapor extraction
Hydrocarbon recovery as a means of soil and groundwater remediation has received considerable attention in the last few years as the shortcomings of groundwater pump-and-treat technologies have become more evident. A previous article covered a wide range of in situ site cleanup technologies and provided guidance on how to choose among them. This article examines one of those technologies, soil vapor extraction (SVE), in more detail and explains how to improve the performance of SVE by combining it with air sparging or steam injection. Air sparging injects air below the groundwater surface to promote the volatilization of volatile organic compounds (VOCs) from the groundwater into the vadose zone so that the VOCs can be removed via the SVE system. Steam injection injects steam into the vadose zone to increase the subsurface temperatures, thereby volatilizing organic compounds with high boiling points.
- OSTI ID:
- 6165994
- Journal Information:
- Chemical Engineering Progress; (United States), Journal Name: Chemical Engineering Progress; (United States) Vol. 89:6; ISSN 0360-7275; ISSN CEPRA8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020900* -- Petroleum-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540250 -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
AERATION
CLEANING
DECONTAMINATION
DEGASSING
FLUID INJECTION
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
IN-SITU PROCESSING
LAND RECLAMATION
MANAGEMENT
MASS TRANSFER
MATERIALS RECOVERY
MATTER
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PROCESSING
REMEDIAL ACTION
SOILS
SPARGERS
STEAM INJECTION
TECHNOLOGY ASSESSMENT
VOLATILE MATTER
WASTE MANAGEMENT
WASTE PROCESSING
WATER