[en] The effects were determined of gamma radiation on the anion exchange resin, Dowex 1. Part I on Dowex 50W was reported May 10, 1974. The exchange capacity (both strong and weak base), moisture content, radiolysis products, and physical deterioration of the resin were analyzed after irradiation with doses up to 6.9 x 10⁸ rads. The resin capacity decreased approximately 50 percent after a radiation dose of 4 x 10⁸ rads. Resin irradiated, when air dried in the nitrate form, showed more stability than resin irradiated in 7N nitric acid (HNO₃), which in turn showed more stability than resin irradiated when air dried in the chloride form. Radiation decreased the strong base capacity to a greater extent than the total capacity. The result indicates that some of the quarternary ammonium groups were transformed to secondary and tertiary amine groups that have weak base ion-exchange capability. (U.S.)

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[en] Dowex R circle 50W cation exchange resin was irradiated with alpha particles by allowing americium-241 to remain sorbed on the resin for various periods. Measurements of exchange capacity on a dry-weight basis showed a decrease of about 20 percent after an absorbed dose of 3 x 10⁸ rads. The moisture content of resin loaded with americium-241 to full capacity increased from 66.5 to about 70 percent, whereas the moisture content of resin loaded to 10 percent of its capacity increased to greater than 90 percent. (U.S.)

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[en] The Rocky Flats Plant is continuing with plans and pilot studies toward the goals of zero discharge of aqueous wastes and complete water recycle. The paper presents the Rocky Flats plans for zero discharge and complete water recycle. It also describes the pilot plant operations and presents some of the data that have been acquired from those operations

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[en] Termination of plutonium part fabrication in the fall of 1989 was followed by the sudden cessation of plutonium processing throughout the U.S. Department of Energy (DOE) complex, leaving reactive residual plutonium legacy materials. There is ∼26 tonnes of plutonium in vulnerable condition located throughout the nuclear complex. This material does not include plutonium, which is safely located in weapons and weapons assemblies. Four sites-Rocky Flats Environmental Technology Site, Westinghouse Hanford Company, Los Alamos National Laboratory (LANL), and Savannah River Site-hold major amounts of plutonium feed materials that must now be stabilized and repackaged. Lawrence Livermore National Laboratory and other sites have lesser amounts