The use of micellar solutions for novel separation techniques

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10146325· OSTI ID:10146325

Roberts, Bruce Lynn ^[1]

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1. Univ. of Oklahoma, Norman, OK (United States)

Surfactant based separation techniques based on the solubilization of organic compounds into the nonpolar interior of a micelle or electrostatic attraction of ionized metals and metal complexes to the charged surface of a micelle were studied in this work. Micellar solutions were used to recover two model volatile organic compounds emitted by the printing and painting industries (toluene and amyl acetate) and to investigate the effect of the most important variables in the surfactant enhanced carbon regeneration (SECR) process. SECR for liquid phase applications was also investigated in which the equilibrium adsorption of cetyl pyridinium chloride (CPC) and sodium dodecyl sulfate (SDS) on activated carbon were measured. Micellar-enhanced ultrafiltration (MEUF) was investigated using spiral wound membranes for the simultaneous removal of organic compounds, metals and metal complexes dissolved in water, with emphasis on pollution control applications. Investigations of MEUF to remove 99+ per cent of trichloroethylene (TCE) from contaminated groundwater using criteria such as: membrane flux, solubilization equilibrium constant, surfactant molecular weight, and Krafft temperature led to the selection of an anionic disulfonate with a molecular weight of 642 (DOWFAX 8390). These data and results from supporting experiments were used to design a system which could clean-up water in a 100,000 gallon/day operation. A four stage process was found to be an effective design and estimated cost for such an operation were found to be in the range of the cost of mature competitive technologies.

• Research Organization: Oklahoma Univ., Norman, OK (United States)
• Sponsoring Organization: USDOE; National Science Foundation (NSF); Environmental Protection Agency (EPA)
• DOE Contract Number: FG05-87ER13678; FG22-87FE61146
• OSTI ID: 10146325
• Report Number(s): DOE/ER/13678--76; ON: DE94010828; BR: KC0302020; AA0510000/AA1505000; CNN: Grant CBT-8814147; Grant R-817450-01-0
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105
54 ENVIRONMENTAL SCIENCES
540250
CLEANING
COST ESTIMATION
EXPERIMENTAL DATA
GROUND WATER
INDUSTRIAL WASTE MANAGEMENT
MICELLAR SYSTEMS
ORGANIC COMPOUNDS
PERFORMANCE TESTING
SEPARATION PROCEDURES
SEPARATION PROCESSES
SITE RESOURCE AND USE STUDIES
WASTE WATER
WATER TREATMENT
WATER TREATMENT PLANTS