Separation of Uranium and Plutonium from Aqueous Acidic Wastes Using a Hollow Fiber Supported Liquid Membrane

The use of microporous hydrophobic polypropylene, as a hollow fiber supported liquid membrane (HFSLM) was considered for removal of actinides such as uranium (U) and plutonium (Pu) from nuclear process effluents. The 1.09 M extractant, tri-n-butyl phosphate (TBP) diluted with n-dodecane was used as...

Full description

Saved in:
Bibliographic Details
Published in:Separation science and technology 2005-01, Vol.39 (6), p.1295-1319
Main Authors: Rathore, N. S., Sonawane, J. V., Gupta, S. K., Pabby, Anil Kumar, Venugopalan, A. K., Changrani, R. D., Dey, P. K.
Format: Article
Language:English
Subjects:
Acidic wastes
Actinides
Effluents
Extraction
Flux
HFSLM
Hydrodynamics
hydroxylamines
Membranes
metal ions
Metals
Permeation
Phosphates
Plutonium
Q1
surface area
TBP
Uranium
Velocity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The use of microporous hydrophobic polypropylene, as a hollow fiber supported liquid membrane (HFSLM) was considered for removal of actinides such as uranium (U) and plutonium (Pu) from nuclear process effluents. The 1.09 M extractant, tri-n-butyl phosphate (TBP) diluted with n-dodecane was used as carrier. The study includes the hydrodynamic and chemical parameters. Modeling was performed using chemical parameters and rate controlling steps were identified. It was possible to remove U(VI) and Pu(IV) from process effluent more than 99% in presence of fission products. The optimum effective feed linear flow velocity was found to be 0.88 cm sec −1 . The stripping reagent 0.1 M hydroxylamine hydrochloride (NH 2 OH · HCl) in 0.5 M HNO 3 was used. The permeation of metal ions increased with increasing effective surface area and model for higher concentration of metal ion was able to describe the transport mechanism of U(VI).
ISSN:0149-6395
1520-5754
DOI:10.1081/SS-120030484