Micellar enhanced ultrafiltration for recovery and concentration of trichloroethylene in groundwater. Final report, 1 July 1991-31 December 1991

Technical Report · Wed Apr 01 04:00:00 EST 1992

OSTI ID:6470030

Roberts, B L; Scamehorn, J F; Christian, S D; Tucker, E E; Uchiyama, H

The objective of this experimental investigation was to determine the feasability of micellar-enhanced ultrafiltration (MEUF) and vacuum stripping process in concentrating and separating trichloroethylene (TCE) from contaminated groundwater. The theory is to add surfactant to the contaminated groundwater to form micelles which bind the TCE molecules. The micelles containing the TCE are then removed by ultrafiltration using a spiral-wound membrane. To remove the TCE from the surfactant, this concentrated solution is vacuum stripped and the surfactant is recycled back to each MEUF stage. Properties such as membrane flux, solubilization equilibrium constant, molecular weight, and Krafft temperature were used to determine the appropriate surfactant. Design calculations were performed to estimate the performance of the vacuum stripper and the approximate number of MEUF units needed to remove 99+ percent of the TCE. Based on these feasability studies, preliminary cost estimates of applying this technology were calculated to be approximately the same cost as current established technology. Several recommendations for improving and optimizing the performance of this technology were made.

• Research Organization: Surfactant Associates, Inc., Norman, OK (United States)
• OSTI ID: 6470030
• Report Number(s): AD-A-260882/6/XAB; CNN: F08635-91-C-0917
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020900 -- Petroleum-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ALKENES
CALCULATION METHODS
CONTROL
COST ESTIMATION
DATA
DESIGN
DIRECT REACTIONS
EQUILIBRIUM
ETHYLENE
FILTRATION
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
HYPOTHESIS
INFORMATION
MANAGEMENT
MATERIALS RECOVERY
MEMBRANES
MOLECULAR WEIGHT
MOLECULES
NUCLEAR REACTIONS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION CONTROL
PROCESSING
RECOMMENDATIONS
SEPARATION PROCESSES
STATISTICAL DATA
STRIPPING
SURFACTANTS
TECHNOLOGY ASSESSMENT
TESTING
TRANSFER REACTIONS
ULTRAFILTRATION
VACUUM SYSTEMS
WASTE MANAGEMENT
WASTE PROCESSING
WATER
WATER POLLUTION CONTROL