Method for removal of explosives from aqueous solution using sus

Details Method for removal of explosives from aqueous solution using sus Method for removal of explosives from aqueous solution using sus

1992-06-08

1994-03-22

Wyse, Thomas

Liquid purification or separation

Processes

Treatment by living organism

210611, 210903, 210909, C02F 332

Patent

active

052961460

ABSTRACT:
The use of plant suspension cultures to remove ionic metallic species and TNT-based explosives and their oxidation products from aqueous solution is described. Several plant strains were investigated including D. innoxia, Citrus citrus, and Black Mexican Sweet Corn. All showed significant ability to remove metal ions. Ions removed to sub-ppm levels include barium, iron, and plutonium. D. innoxia cells growing in media containing weapons effluent contaminated with Ba.sup.2+ also remove TNT, other explosives and oxidation products thereof from solution. The use of dead, dehydrated cells was also found to be of use in treating waste directly.

REFERENCES:
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P. J. Jackson et al., "Poly(.gamma.-glutamylcysteinyl)glycine: Its Role in Cadmium Resistance in Plant Cells", Proc. Natl. Acad. Sci. USA, 84, 6619 (1987).
C. D. Foy, R. L. Chaney, and M. C. White, "The Physiology of Metal Toxicity in Plants", Ann. Rev. Plant Physiol., 29, 511 (1978).
J. S. Fletcher, A. W. Groeger, and J. C. McFarlane, "Metabolism of 2-chlorobiphenyl by Suspension Cultures in Paul's Scarlet Rose", Bull. Environ. Contam. Toxicol., 39, 960 (1987).
P. J. Jackson, E. J. Roth, P. McClure, and C. M. Naranjo, "Selection, Isolation, and Characterization of Cadmium-Resistant Datura innoxia Suspension Cultures", Plant Physiol., 75, 914 (1984).

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