An application of supported liquid membranes for removal of inorganic contaminants from groundwater

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5809509

Chiarizia, R ^[1]; Horwitz, E P ^[2]; Hodgson, K M ^[3]

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1. Argonne National Lab., IL (United States) Westinghouse Hanford Co., Richland, WA (United States)
2. Argonne National Lab., IL (United States)
3. Westinghouse Hanford Co., Richland, WA (United States)

This review paper summarizes the results of an investigation on teh use of supported liquid membranes for the removal of uranium (VI) and some anionic contaminants (technetium(VII), chromium(VI) and nitrates) from the Hanford site groundwater. As a membrane carrier for U(VI), bis(2,4,4-trimethylpentyl)phosphinic acid was selected because of its high selectivity over calcium and magnesium. The water soluble complexing agent 1-hydroxyethane-1,1-diphosphonic acid was used as stripping agent. For the anionic contaminants the long-chain aliphatic amines Primene JM-T (primary)., Amberlite LA-1 (secondary) and trilaurylamine (tertiary) were investigated as membrane carriers. Among these amines, Amberlite LA-2 proved to be the most effective carrier for the simultaneous removal of the investigated anion contaminants. A good long-term stability (at least one month) of the liquid membranes was obtained, especially in the uranium(VI) removal. 8 refs., 4 figs., 4 tabs.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5809509
• Report Number(s): ANL/CP-70046; CONF-910402--24; ON: DE92006971
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540330* -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1990-)
ACTINIDES
AMINES
ANIONS
CATIONS
CHARGED PARTICLES
CHROMATES
CHROMIUM COMPOUNDS
CLEANING
DECONTAMINATION
ELEMENTS
GROUND WATER
HANFORD RESERVATION
HYDROGEN COMPOUNDS
IONS
MEMBRANES
METALS
NATIONAL ORGANIZATIONS
NITRATES
NITROGEN COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXYGEN COMPOUNDS
PERTECHNETATES
PHOSPHINIC ACIDS
PHOSPHONIC ACIDS
REFRACTORY METAL COMPOUNDS
REMOVAL
SUPPORTED LIQUID MEMBRANES
TECHNETIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
URANIUM
US DOE
US ERDA
US ORGANIZATIONS
WATER