Solvent-extraction treatment. Engineering Bulletin

Technical Report · Sat Sep 01 04:00:00 EDT 1990

OSTI ID:5063666

Solvent extraction does not destroy wastes, but is a means of separating hazardous contaminants from soils, sludges, and sediments, thereby reducing the volume of the hazardous waste that must be treated. Generally it is used as one in a series of unit operations, and can reduce the overall cost for managing a particular site. It is applicable to organic wastes and is generally not used for treating inorganics and metals. The technology uses an organic chemical as a solvent and differs from soil washing, which generally uses water or water with wash improving additives. During 1989, the technology was one of the selected remedies at six Superfund sites. Commercial-scale units are in operation. There is no clear solvent extraction technology leader by virtue of the solvent employed, type of equipment used, or mode of operation. The final determination of the lowest cost alternative will be more site specific than process equipment dominated. Vendors should be contacted to determine the availability of a unit for a particular site. The bulletin provides information on the technology applicability, the types of residuals produced, the latest performance data, site requirements, the status of the technology, and sources for further information.

• Research Organization: Science Applications International Corp., Cincinnati, OH (United States)
• OSTI ID: 5063666
• Report Number(s): PB-91-228015/XAB; CNN: EPA-68-C8-0062
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
CLEANING
DECONTAMINATION
EXTRACTION
HAZARDOUS MATERIALS
LAWS
MANAGEMENT
MATERIALS
MATERIALS RECOVERY
ORGANIC WASTES
POLLUTION LAWS
PROCESSING
RECOVERY
REMEDIAL ACTION
SEPARATION PROCESSES
SOILS
SOLVENT EXTRACTION
TECHNOLOGY UTILIZATION
US SUPERFUND
WASTE MANAGEMENT
WASTE PROCESSING
WASTES