Engineering 'Deinococcus Radiodurans' for Metal Remediation in Radioactive Mixed Waste Sites. (Final Report, 1997-2004).

Daly, M. J. ; Fredrickson, J. K. ; Wackett, L. P.

Technical Information Center Oak Ridge Tennessee

关键词: Radioactive wastes;    Metals;    Remedial action;    Radionuclides;    Toxins;   

RP-ID  :  DE2006837824

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Immense volumes of radioactive waste were generated from the production of 46,000 nuclear weapons in the United States between 1945 and 1986. This is a period when national security priorities often surmounted concerns over the environment. Most wastes included mixtures of inorganic and organic contaminants such as radionuclides, heavy metals, and solvents, which were disposed directly to the ground or stored in subterranean tanks at 120 sites across the United States. Low levels of widespread contamination originating from waste sites have contaminated over 40 million cubic meters of surface and subsurface soils and over 1 trillion liters of groundwater. As a result of the chemical reprocessing of 110,000 tons of nuclear fuel at the Hanford Site, near Richland, Washington, 55 million gallons of radioactive waste were produced at nine reactors and stored in 177 single-shell underground tanks. These tanks have been used since 1943, but had a design-life of only 10-20 years, and leaks were confirmed in 1961.