In-situ steam-extraction treatment. Engineering Bulletin
In situ steam extraction removes volatile and semivolatile hazardous contaminants from soil and groundwater without excavation of the hazardous waste. Waste constituents are removed in situ by the technology and are not actually treated. The use of steam enhances the stripping of volatile contaminants from soil and can be used to displace contaminated groundwater under some conditions. The resultant condensed liquid contaminants can be recycled or treated prior to disposal. The steam extraction process is applicable to organic wastes but has not been used for removing insoluble inorganics and metals. Steam is injected into the ground to raise the soil temperature and drive off volatile contaminants. Alternatively, steam can be injected to form a displacement front by steam condensation to displace groundwater. The contaminated liquid and steam condensate are then collected for further treatment. Two types of systems are discussed in the document: the mobile system and the stationary system. The bulletin provides information on the technology applicability, limitations, a description of the technology, types of residuals produced, site requirements, the latest performance data, the status of the technology, and sources for further information.
- Research Organization:
- Science Applications International Corp., Cincinnati, OH (United States)
- OSTI ID:
- 5109669
- Report Number(s):
- PB-91-228064/XAB; CNN: EPA-68-C8-0062
- Country of Publication:
- United States
- Language:
- English
Similar Records
In-situ-soil-vapor-extraction treatment. Engineering Bulletin
Engineering bulletin: In situ biodegradation treatment
Related Subjects
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
CLEANING
CONTROL
DECONTAMINATION
EXTRACTION
FLUID INJECTION
GROUND WATER
HAZARDOUS MATERIALS
HYDROGEN COMPOUNDS
IN-SITU PROCESSING
LAND POLLUTION CONTROL
MATERIALS
MATTER
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION CONTROL
PROCESSING
REMEDIAL ACTION
SEPARATION PROCESSES
SOILS
STEAM INJECTION
VOLATILE MATTER
WATER
WATER POLLUTION CONTROL