Removal of uranium from water using terrestial plants

Article Abstract:

Uranium could be efficiently removed from contaminated water sources through rhizofiltration. Laboratory studies reveal that the uranium removed from the water was concentrated in the roots of sunflower plants. The studies were similar to the pilot-scale rizhofiltration system performed at a former uranium procesing facility in Ashtabula, OH. The 21-874 microng/L uranium concentration of the water at the facility was reduced to less than the acceptable Environmental Protection Agency (EPA) Water Quality Standard of less than 20 microng/L.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Uranium Metal, Decontamination (from gases, chemicals, etc.), Decontamination, Rhizoids

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Understanding the mechanism of uranium removal from groundwater by zero-valent iron using x-ray photoelectron spectroscopy

Article Abstract:

The use of x-ray photoelectron spectroscopy clarified the removal of soluble uranium from groundwater by zero-valent iron. Uranium (U super 6+) is sorbed to the hydrous ferric oxide particulates under aerobic conditions and is reduced to U(super 4+) under anaerobic conditions. Such reactions are governed by the observed high affinity of uranium to iron-containing minerals, but such absorption process is weak and may eventually lead to a redispersion of uranium.

All Other Basic Inorganic Chemical Manufacturing, CHEMICALS AND ALLIED PRODUCTS, Nuclear Wastes, Environmental aspects, Nuclear research, Radioactive wastes, Absorption

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Bioremediation and bioreduction of dissolved U(VI) by microbial mat consortium supported on silica gel particles

Article Abstract:

A report researching the use of microbial mats to recreate the natural attenuation of uranium.

United States, Statistical Data Included, Usage, Illustration, Microbial mats

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