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SEQUESTERING AGENTS FOR ACTIVE CAPS - REMEDIATION OF METALS AND ORGANICS

Description: This research evaluated organoclays, zeolites, phosphates, and a biopolymer as sequestering agents for inorganic and organic contaminants. Batch experiments were conducted to identify amendments and mixtures of amendments for metal and organic contaminants removal and retention. Contaminant removal was evaluated by calculating partitioning coefficients. Metal retention was evaluated by desorption studies in which residue from the removal studies was extracted with 1 M MgCl{sub 2} solution. The … more
Date: May 10, 2007
Creator: Knox, A; Michael Paller, M; Danny D. Reible, D; Xingmao Ma, X & Ioana G. Petrisor, I
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Laboratory and Pilot Plant Evaluation of Stanrock Uranium Concentrate

Description: The laboratory and pilot plant evaluation of Stanrock concentrate is presented. This concentrate meets all FMPC impurity tolerance limits except that for thorium content. The thorium limit can be met by the addition of phosphate as required for thorium-containing uranium concentrates. Laboratory digestion and extraction tests indicate that this material should present no problems in pulse column processing. A pilot plant pulse column test (a test utilizing a modified two-inch-pulse-column syste… more
Date: October 10, 1958
Creator: Leist, N. R.; Hicks, C. T. & Nelli, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uniform Aqueous Corrosion of Aluminum--Effects of Various Ions

Description: The most important variable in water quality on the uniform corrosion of Al was the pH. Solutions of distilled water containing phosphate ions and citrate ions were the only media which showed a definite specific ion effect. Phosphate inhibited the corrosion and citrate increased it. Oxalate ions appeared to increase corrosion, but the effect is not definitely demonstrated by the data. Corrosion was dependent only on pH in tap water, reactor process water, distilled water, and distilled water c… more
Date: June 10, 1957
Creator: Troutner, V. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A NEW PROCESS FOR THE REMOTE PREPARATION AND FABRICATION OF FUEL ELEMENTS CONTAINING URANIUM-233 OXIDE-THORIUM OXIDE

Description: A remotely operated pilot piant for the engineering development of the sol-gel---vibratory-compaction procedure is being used to prepare about a thousand Zircaloy-2-clad fuel elements for a zero-power criticality experiment. The feasibility, safety, and economy of remote recovery, preparation, fabrication, and inspection of U/sup 233/O/sub 2/-ThO/sub 2/ fuels are being evaluated. The procedure includes solvent extraction recovery of U/sup 233/ by means of di-sec-butyl phenylphosphonate in dieth… more
Date: June 10, 1963
Creator: Dean, O.C.; Brooksbank, R.E. & Lotts, A.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LOW-RADIOACTIVITY-LEVEL WASTE TREATMENT. PART I. LABORATORY DEVELOPMENT OF A SCAVENGING-PRECIPITATION ION-EXCHANGE PROCESS FOR DECONTAMINATION OF PROCESS WATER WASTES

Description: A scavenging-precipitation ion-exchange process using phenolic resins was developed to decontaminate lowradioactivity-level process water waste prior to discharge to the environment. In laboratory and small engineeringscale tests, greater than 99.9% of the cesium and strontium, the principal biological hazards were removed from ORNL low-level waste, and the total activity level was lowered to less than the maximum permissible concentration recommended for populations in the neighborhood of atom… more
Date: July 10, 1963
Creator: Holcomb, R.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Genome of Deep-Sea Vent Chemolithoautotroph Thiomicrospira crunogena XCL-2

Description: Presented here is the complete genome sequence of Thiomicrospira crunogena XCL-2, representative of ubiquitous chemolithoautotrophic sulfur-oxidizing bacteria isolated from deep-sea hydrothermal vents. This gammaproteobacterium has a single chromosome (2,427,734 bp), and its genome illustrates many of the adaptations that have enabled it to thrive at vents globally. It has 14 methyl-accepting chemotaxis protein genes, including four that may assist in positioning it in the redoxcline. A relativ… more
Date: January 10, 2007
Creator: Scott, K. M.; Sievert, S. M.; Abril, F. N.; Ball, L. A.; Barrett, C. J.; Blake, R. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Sodium Meta-Autunite Colloids: Synthesis, Characterization, and Stability

Description: Waste forms of U such as those in the United States Department of Energy's Hanford Site often contain high concentrations of Na and P. Low solubility sodium uranyl phosphates such as sodium meta-autunite have the potential to form mobile colloids that can facilitate transport of this radionuclide. In order to understand the geochemical behavior of uranyl phosphate colloids, we synthesized sodiummeta-autunite colloids, and characterized their morphology, chemical composition, structure, dehydrat… more
Date: April 10, 2004
Creator: Zheng, Zuoping; Wan, Jiamin & Tokunaga, Tetsu K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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