Method for removal of metal atoms from aqueous solution using su

Details Method for removal of metal atoms from aqueous solution using su Method for removal of metal atoms from aqueous solution using su

1990-05-30

1992-06-09

Wyse, Thomas

Liquid purification or separation

Processes

Treatment by living organism

210611, 210688, 210912, C02F 332, C02F 162

Patent

active

051204410

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 were also found to be of use in treating waste directly.

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J. S. Fletcher et al., "Metabolism of 2-chlorobiphenyl by Suspension Cultures of Paul's Scarlet Rose", Bull. Environ. Contam. Toxicol., 39, 960 (1987).
P. J. Jackson et al., "Selection, Isolation, and Characterization of Cadmium-Resistant Datura innoxia Suspension Cultures", Plant Physiol., 75, 914 (1984).

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