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  Partner: UNT Libraries Government Documents Department
 Decade: 1970-1979
 Collection: Technical Report Archive and Image Library
Feasibility of Underground Storage/Disposal of Noble Gas Fission Products

Feasibility of Underground Storage/Disposal of Noble Gas Fission Products

Date: August 1979
Creator: Winar, R. M.; Trevorrow, L. E. & Steindler, M. J.
Description: The quantities of krypton-85 that can be released to the environment from nuclear energy production are to be limited after 1983 by Federal regulations. Although procedures for collecting the krypton-85 released in the nuclear fuel cycle have been developed to the point that they are commercially available, procedures for terminal disposal of the collected gas are still being examined for their feasibility. In this work, the possibilities of underground disposal of krypton-85 by several techniques were evaluated. It was concluded that (1) disposal of krypton-85 as a solution in water or other solvents in deep wells would have the major disadvantages of liquid migration and the requirement of extremely large volumes of solvent; (2) disposal as bubbles entrained in cement grout injected underground presents the uncertainty of gaseous migration through permeable solid grout; (3) disposal by injection into abandoned oil fields would be favored by solubility of krypton in residual hydrocarbons, but has the disadvantages that such fields contain numerous shafts offering avenues of escape and also that the fields may be reworked in the future for their hydrocarbon residues; (4) underground retention of krypton-85 injected as a gas may be promising, given the right lithology, through entrapment in interstices ...
Contributing Partner: UNT Libraries Government Documents Department
Multichannel Clad-Relocation Model for Fast-Reactor Loss-of-Flow Accidents

Multichannel Clad-Relocation Model for Fast-Reactor Loss-of-Flow Accidents

Date: August 1979
Creator: Ishii, M.; Chen, W. L. & Grolmes, M. A.
Description: During an unprotected undercooling accident in a liquid-metal fast breeder reactor, the motion and relocation of the molten cladding can he important because of its potentially significant effect on reactivity, blockage formation, and subsequent fuel motion. The present study analyzes the clad relocation problem1 based on a multichanneI film-flow model. The important aspects considered in the analysis are the nonuniform transverse ci1ad-melting pattern and diversions of sodium vapor flow within a subassembly. It has been shown that the motion of molten clad and subsequent blockage formations can be significantly influenced by this interconnected channel effect. Several sample cmi cu lat ions have been made in order to demonstrate these points.
Contributing Partner: UNT Libraries Government Documents Department
Recovery of Actinides from TBP-Na₂CO₃ Scrub-Waste Solutions: the ARALEX Process

Recovery of Actinides from TBP-Na₂CO₃ Scrub-Waste Solutions: the ARALEX Process

Date: August 1979
Creator: Horwitz, E. P.; Bloomquist, C. A. A.; Mason, G. W.; Leonard, R. A. & Ziegler, A. A.
Description: A flow-sheet for the recovery of actinides from TBP-Na2CO3scrub-waste solutions has been developed, based on batch extraction data, and tested, using laboratory-scale countercurrent extraction techniques. The process, called the ARALEX process, uses 2-ethyl-1-hexanol (2-EHOH) to extract the TBP degradation products (HDBP and H/sub 2/MBP) from acidified Na2CO3scrub waste leaving the actinides in the aqueous phase. Dibutyl and monobutyl phosphoric acids are attached to the 2-EHOH molecules through hydrogen bonds, which also diminish the ability of the HDBP and H2/MBP to complex actinides. Thus all actinides remain in the aqueous raffinate. Dilute sodium hydroxide solutions can be used to back-extract the dibutyl and monobutyl phosphoric acid esters as their sodium salts. The 2-EHOH can then be recycled. After extraction of the acidified carbonate waste with 2-EHOH, the actinides may be readily extracted from the raffinate with DHDECMP or, in the case of tetra- and hexavalent actinides, with TBP. The ARALEX process can also be applied to other actinide waste streams which contain appreciable concentrations of polar organic compounds (e.g., detergents) that interfere with conventional actinide ion exchange and liquid-liquid extraction procedures.
Contributing Partner: UNT Libraries Government Documents Department
The Wetting Behavior of Molten-Chloride Electrolytes: Capillarity Effects in Lithium-Aluminum/Metal Sulfide Batteries

The Wetting Behavior of Molten-Chloride Electrolytes: Capillarity Effects in Lithium-Aluminum/Metal Sulfide Batteries

Date: August 1979
Creator: Eberhart, James G.
Description: A lithium-aluminum/iron sulfide battery which uses a molten LiCl-KCl electrolyte is presently under development at Argonne National Laboratory. The performance and lifetime of this electrochemical system depend, in part, on the ability of the electrolyte to wet the materials used as electrodes, separators, and particle retainers. For this reason contact-angle measurements were made on smooth, 100%-dense surfaces of the cell materials. In addition, electrolyte penetrability determinations were made on the porous materials actually used as cell separators and particle retainers. The results of these measurements led to techniques for completely filling porous cell components with electrolyte, suggestions for dealing with the problem of electrolyte creeping, estimates of the likelihood of electrolyte transfer from one porous component to another, and estimation of the maximum allowable vertical cell dimensions.
Contributing Partner: UNT Libraries Government Documents Department
Analysis of Tentative Seismic Design Provisions for Buildings

Analysis of Tentative Seismic Design Provisions for Buildings

Date: July 1979
Creator: Harris, James Robert; Fenves, Steven J. & Wright, Richard N.
Description: Report issued by the U.S. National Bureau of Standards discussing an analysis of seismic design provisions for buildings with three main objectives. As stated in the introduction, "The first objective was to assist the ATC in the preparation of its report. The second objective of the study was to augment the text of the published Provisions by providing a formal, consistent documentation of the text. The third objective was to provide alternate arrangements of the Provisions that would make them more readily usable by several categories of users" (p. 1). This report includes illustrations.
Contributing Partner: UNT Libraries Government Documents Department
The Chenier Plain Ecosystem: An Ecological Characterization

The Chenier Plain Ecosystem: An Ecological Characterization

Date: July 1979
Creator: U.S. Fish and Wildlife Service
Description: Foldout poster detailing the physical setting and socioeconomics of the Chenier Plain ecosystem. Discussion of habitats including ridge, upland forest, wetlands, aquatic, agricultural, and urban.
Contributing Partner: UNT Libraries Government Documents Department
Development of Lithium/Metal Sulfide Batteries at Argonne National Laboratory : Summary Report for 1978

Development of Lithium/Metal Sulfide Batteries at Argonne National Laboratory : Summary Report for 1978

Date: July 1979
Creator: Nelson, P. A.
Description: Report of highlights of Argonne program on the development of lithium/metal sulfide batteries. These batteries are being developed for electric-vehicle propulsion and for stationary energy-storage applications.
Contributing Partner: UNT Libraries Government Documents Department
Fission-Product Releases to the Primary System of EBR-II from April 1977 to May 1978

Fission-Product Releases to the Primary System of EBR-II from April 1977 to May 1978

Date: July 1979
Creator: So, B. Y. C.; Gross, K. C.; Lambert, J. D. B.; Kim, F. S.; Ebersole, E. R. & Lang, M. T.
Description: Suspected fission-product releases from 18 subassemblies between April 1977 and May 1978 are presented. Post-irradiation examinations pm 15 of the suspect subassemblies confirmed that all contained one or more breached elements. Except for two untagged subassemblies, xenon tagging was the primary method of identification, although other methods were used where appropriate. Methods to monitor and identify fission product sources are discussed. Problems encountered elements on plant availability were minimal during this reporting period. From all evidence, cladding breaching on elements in EBR-II continues to be a benign process.
Contributing Partner: UNT Libraries Government Documents Department
Iterative Solution of Linear Programs

Iterative Solution of Linear Programs

Date: July 1979
Creator: Mangasarian, Olvi L.
Description: By perturbing a linear program to a quadratic program, it is possible to solve the latter in its dual variable space by iterative techniques such as successive over-relaxation (SOR) methods. This provides a solution to the original linear program.
Contributing Partner: UNT Libraries Government Documents Department
A Nondestructive Assay System for use in Decommissioning a Plutonium-Handling Facility

A Nondestructive Assay System for use in Decommissioning a Plutonium-Handling Facility

Date: July 1979
Creator: Argonne National Laboratory. Special Materials Division. Nondestructive Assay Section.
Description: Argonne National Laboratory is decommissioning a facility used to fabricate reactor fuel elements. The equipment is contaminated with alpha emitters. The objective of decontamination is to reduce the TRU concentrations below 10 nCi/g of waste. A portable NDA procedure using Na I (TI ) gamma-spectrometric techniques was selected to measure the residual Pu and 2i 1 Am in the glove boxes. Assays were performed at different stages in the decontamination process to estimate the detection system sensitivity and the effectiveness of the cleaning efforts.
Contributing Partner: UNT Libraries Government Documents Department