113 Matching Results

Search Results

Results: 1 - 24 next
open access

THE USE OF POLYMERS IN RADIOACTIVE WASTE PROCESSING SYSTEMS

Description: The Savannah River Site (SRS), one of the largest U.S. Department of Energy (DOE) sites, has operated since the early 1950s. The early mission of the site was to produce critical nuclear materials for national defense. Many facilities have been constructed at the SRS over the years to process, stabilize and/or store radioactive waste and related materials. The primary materials of construction used in such facilities are inorganic (metals, concrete), but polymeric materials are inevitably used … more
Date: April 15, 2013
Creator: Skidmore, E. & Fondeur, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Innovative Water Management Technology to Reduce Environment Impacts of Produced Water

Description: Clemson University with Chevron as an industry partner developed and applied treatment technology using constructed wetland systems to decrease targeted constituents in simulated and actual produced waters to achieve reuse criteria and discharge limits. Pilot-scale and demonstration constructed wetland treatment system (CWTS) experiments led to design strategies for treating a variety of constituents of concern (COCs) in produced waters including divalent metals, metalloids, oil and grease, and… more
Date: May 15, 2013
Creator: Castle, James; Rodgers, John; Alley, Bethany; Coffey, Ruthanne; Jurinko, Kristen; Pardue, Michael et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

241-AZ Farm Annulus Extent of Condition Baseline Inspection

Description: This report provides the results of the comprehensive annulus visual inspection for tanks 241- AZ-101 and 241-AZ-102 performed in fiscal year 2013. The inspection established a baseline covering about 95 percent of the annulus floor for comparison with future inspections. Any changes in the condition are also included in this document.
Date: May 15, 2013
Creator: Engeman, Jason K.; Girardot, Crystal L. & Vazquez, Brandon J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Scientific Data Management Center for Enabling Technologies

Description: Managing scientific data has been identified by the scientific community as one of the most important emerging needs because of the sheer volume and increasing complexity of data being collected. Effectively generating, managing, and analyzing this information requires a comprehensive, end-to-end approach to data management that encompasses all of the stages from the initial data acquisition to the final analysis of the data. Fortunately, the data management problems encountered by most scienti… more
Date: January 15, 2013
Creator: Vouk, Mladen A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technitium Management at the Hanford Site

Description: The Hanford tank waste contains -26,000 Ci of technetium-99 (Tc-99), the majority of which is in the supernate fraction. Tc-99 is a long-lived radionuclide with a half-life of -212,000 years and, in its predominant pertechnetate (TcO{sub 4}) fonn, is highly soluble and very mobile in the vadose zone and ultimately the groundwater. Tc-99 is identified as the major dose contributor (in groundwater) by past Hanford site performance assessments and therefore considered a key radionuclide of concern… more
Date: August 15, 2013
Creator: Robbins, Rebecca A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

COMPARISON OF RESULTS FOR QUARTER 4 SURFACE WATER SPLIT SAMPLES COLLECTED AT THE NUCLEAR FUELS SERVICES SITE, ERWIN, TN

Description: Oak Ridge Associated Universities (ORAU), under the Oak Ridge Institute for Science and Education (ORISE) contract, collected split surface water samples with Nuclear Fuel Services (NFS) representatives on June 12, 2013. Representatives from the U.S. Nuclear Regulatory Commission (NRC) and the Tennessee Department of Environment and Conservation were also in attendance. Samples were collected at four surface water stations, as required in the approved Request for Technical Assistance number 11-… more
Date: August 15, 2013
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Innovative Water Management Technology to Reduce Environment Impacts of Produced Water

Description: Clemson University with Chevron as an industry partner developed and applied treatment technology using constructed wetland systems to decrease targeted constituents in simulated and actual produced waters to achieve reuse criteria and discharge limits. Pilot-scale and demonstration constructed wetland treatment system (CWTS) experiments led to design strategies for treating a variety of constituents of concern (COCs) in produced waters including divalent metals, metalloids, oil and grease, and… more
Date: May 15, 2013
Creator: Castle, James; Rodgers, John; Alley, Bethany; Coffey, Ruthanne; Jurinko, Kristen; Pardue, Michael et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Western Kentucky University Research Foundation Biodiesel Project

Description: Petroleum-based liquid hydrocarbons is exclusively major energy source in the transportation sector. Thus, it is the major CO{sub 2} source which is the associated with greenhouse effect. In the United States alone, petroleum consumption in the transportation sector approaches 13.8 million barrels per day (Mbbl/d). It is corresponding to a release of 0.53 gigatons of carbon per year (GtC/yr), which accounts for approximate 7.6 % of the current global release of CO{sub 2} from all of the fossil … more
Date: March 15, 2013
Creator: Pan, Wei-Ping & Cao, Yan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Collaborative Proposal: Transforming How Climate System Models are Used: A Global, Multi-Resolution Approach

Description: Despite the great interest in regional modeling for both weather and climate applications, regional modeling is not yet at the stage that it can be used routinely and effectively for climate modeling of the ocean. The overarching goal of this project is to transform how climate models are used by developing and implementing a robust, efficient, and accurate global approach to regional ocean modeling. To achieve this goal, we will use theoretical and computational means to resolve several basic … more
Date: April 15, 2013
Creator: Estep, Donald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DISTRIBUTION OF LANTHANIDE AND ACTINIDE ELEMENTS BETWEEN BIS-(2-ETHYLHEXYL)PHOSPHORIC ACID AND BUFFERED LACTATE SOLUTIONS CONTAINING SELECTED COMPLEXANTS

Description: With the renewed interest in the closure of the nuclear fuel cycle, the TALSPEAK process is being considered for the separation of Am and Cm from the lanthanide fission products in a next generation reprocessing plant. However, an efficient separation requires tight control of the pH which likely will be difficult to achieve on a large scale. To address this issue, we measured the distribution of lanthanide and actinide elements between aqueous and organic phases in the presence of complexants … more
Date: April 15, 2013
Creator: Rudisill, Tracy S.; Diprete, David P. & Thompson, Major C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Integrated Genome-Based Studies of Shewanella Ecophysiology

Description: This project had as its goals the understanding of the ecophysiology of the genus Shewanella using various genomics approaches. As opposed to other programs involving Shewanella, this one branched out into the various areas in which Shewanella cells are active, and included both basic and applied studies. All of the work was, to some extent, related to the ability of the bacteria to accomplish electron exchange between the cell and solid state electron acceptors and/or electron donors, a proces… more
Date: October 15, 2013
Creator: Nealson, Kenneth H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Deep Sludge Gas Release Event Analytical Evaluation

Description: The purpose of the Deep Sludge Gas Release Event Analytical Evaluation (DSGRE-AE) is to evaluate the postulated hypothesis that a hydrogen GRE may occur in Hanford tanks containing waste sludges at levels greater than previously experienced. There is a need to understand gas retention and release hazards in sludge beds which are 200 -300 inches deep. These sludge beds are deeper than historical Hanford sludge waste beds, and are created when waste is retrieved from older single-shell tanks (SST… more
Date: August 15, 2013
Creator: Sams, Terry L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Innovative Phase Change Thermal Energy Storage Solution for Baseload Power Phase 1 Final Report

Description: The primary purpose of this project is to develop and validate an innovative, scalable phase change salt thermal energy storage (TES) system that can interface with Infinia’s family of free-piston Stirling engines (FPSE). This TES technology is also appropriate for Rankine and Brayton power converters. Solar TES systems based on latent heat of fusion rather than molten salt temperature differences, have many advantages that include up to an order of magnitude higher energy storage density, much… more
Date: May 15, 2013
Creator: Qiu, Songgang
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Report on ``Theories of Strong Electron Correlations in Molecules and Solids’’ - DE-FG02-97ER45640

Description: The PI led theoretical studies of correlated hybridization in transition metal complexes, compounds, and molecules, and of electron transport in DNA associated with nanoelectronic conformations attached to gold electrodes and in the presence of DNA repair proteins.
Date: April 15, 2013
Creator: Cox, Daniel L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hydrogen Concentration in the Inner-Most Container within a Pencil Tank Overpack Packaged in a Standard Waste Box Package

Description: The purpose of this report is to evaluate hydrogen generation within Pencil Tank Overpacks (PTO) in a Standard Waste Box (SWB), to establish plutonium (Pu) limits for PTOs based on hydrogen concentration in the inner-most container and to establish required configurations or validate existing or proposed configurations for PTOs. The methodology and requirements are provided in this report.
Date: August 15, 2013
Creator: Marusich, Robert M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Discovery of the First Leaking Double-Shell Tank - Hanford Tank 241-AY-102

Description: A routine video inspection of the annulus region of double-shell tank 241-A Y-102 in August of 2012 indicated the presence material in the annulus space between the primary and secondary liners. A comparison was made to previous inspections perfom1ed in 2006 and 2007. which indicated that a change had occurred. The material was observed at two locations on the floor of the annulus and one location at the top of the annulus region where the primary and secondary top knuckles meet (RPP-ASMT-53793… more
Date: August 15, 2013
Creator: Harrington, Stephanie J. & Sams, Terry L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Creation of an Enhanced Geothermal System through Hydraulic and Thermal Stimulation

Description: This report describes a 10-year DOE-funded project to design, characterize and create an Engineered Geothermal System (EGS) through a combination of hydraulic, thermal and chemical stimulation techniques. Volume 1 describes a four-year Phase 1 campaign, which focused on the east compartment of the Coso geothermal field. It includes a description of the geomechanical, geophysical, hydraulic, and geochemical studies that were conducted to characterize the reservoir in anticipation of the hydrauli… more
Date: April 15, 2013
Creator: Rose, Peter Eugene
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen