Destruction of Complexants Used in Groundwater Decontamination

Conference · Thu Aug 01 04:00:00 EDT 1991

OSTI ID:5213486

Hodgson, K. M. ^[1]; Moberg, T. P. ^[1]

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1. Westinghouse Hanford Co., Richland, WA (United States)

A supported liquid membrane process is being developed to remove uranium from aqueous solutions. The uranium would be concentrated into a strip solution containing either vinylidene-1,1-diphosphonic acid (VDPA) or 1-hydroxyethane-1,1-diphoshonic acid (HEDPA). This study compares the degradation of HEDPA and VDPA under similar conditions. For the time of the tests in this study (3 h) the maximum amount of HEDPA that was destroyed was 83.5% using hydrogen peroxide and the maximum amount of VDPA destroyed was 64.6% using nitric acid.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 5213486
• Report Number(s): WHC-SA--1209; CONF-910981--2; ON: DE91018139
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDES
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHELATES
CHEMICAL REACTIONS
COMPLEXES
DECOMPOSITION
ELEMENTS
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
INORGANIC ACIDS
MATERIALS
MEMBRANES
METALS
NITRIC ACID
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PEROXIDES
PH VALUE
PHOSPHINIC ACIDS
PHOSPHORIC ACID
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SEPARATION PROCESSES
SODIUM COMPOUNDS
TEMPERATURE EFFECTS
URANIUM
WASTES