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300 Area Uranium Leach and Adsorption Project
The objective of this study was to measure the leaching and adsorption characteristics of uranium in six near-surface sediment samples collected from the 300 Area of the Hanford Site. Scanning electron micrographs of the samples showed that the uranium contamination in the sediments is most likely present as co-precipitates and/or discrete uranium particles. Molecular probe techniques also confirm the presence of crystalline discrete uranium bearing phases. In all cases, the uranium is present as oxidized uranium (uranyl [U(VI)]). Results from the column leach tests showed that uranium leaching did not follow a constant solubility paradigm. Four of the five contaminated sediments showed a large near instantaneous release of a few percent of the total uranium followed by a slower continual release. Steady-state uranium leachate concentrations were never measured and leaching characteristics and trends were not consistent among the samples. Dissolution kinetics were slow, and the measured leach curves most likely represent a slow kinetically controlled desorption or dissolution paradigm. Batch adsorption experiments were performed to investigate the effect of pH and uranium and carbonate solution concentrations on uranium adsorption onto the uncontaminated sediment. Uranium adsorption Kd values ranged from 0 to > 100 ml/g depending on which solution parameter was …
Date:
November 26, 2002
Creator:
Serne, R. Jeffrey; Brown, Christopher F.; Schaef, Herbert T.; Pierce, Eric M.; Lindberg, Michael J.; Wang, Zheming et al.
Object Type:
Report
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 31, No. 26, Ed. 1 Friday, April 26, 2002
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
April 26, 2002
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The 2002 Farm Bill: Overview and Status
This report provides an overview of the 2002 farm bill and an update status of the farm bill.
Date:
April 26, 2002
Creator:
Becker, Geoffrey S. & Womach, Jasper
Object Type:
Report
System:
The UNT Digital Library
The 21st Century Library: Collaborative Services, Standards, and Interoperability
Presentation for the 2002 Netspeed Annual Conference. This presentation discusses the collaborative services, standards and interoperability of libraries in the 21st century.
Date:
October 26, 2002
Creator:
Moen, William E.
Object Type:
Presentation
System:
The UNT Digital Library
Accepting Mixed Waste as Alternate Feed Material for Processing and Disposal at a Licensed Uranium Mill
Certain categories of mixed wastes that contain recoverable amounts of natural uranium can be processed for the recovery of valuable uranium, alone or together with other metals, at licensed uranium mills, and the resulting tailings permanently disposed of as 11e.(2) byproduct material in the mill's tailings impoundment, as an alternative to treatment and/or direct disposal at a mixed waste disposal facility. This paper discusses the regulatory background applicable to hazardous wastes, mixed wastes and uranium mills and, in particular, NRC's Alternate Feed Guidance under which alternate feed materials that contain certain types of mixed wastes may be processed and disposed of at uranium mills. The paper discusses the way in which the Alternate Feed Guidance has been interpreted in the past with respect to processing mixed wastes and the significance of recent changes in NRC's interpretation of the Alternate Feed Guidance that sets the stage for a broader range of mixed waste materials to be processed as alternate feed materials. The paper also reviews the le gal rationale and policy reasons why materials that would otherwise have to be treated and/or disposed of as mixed waste, at a mixed waste disposal facility, are exempt from RCRA when reprocessed as alternate …
Date:
February 26, 2002
Creator:
Frydenland, D. C.; Hochstein, R. F. & Thompson, A. J.
Object Type:
Article
System:
The UNT Digital Library
Acquisition Workforce: Department of Defense's Plans to Address Workforce Size and Structure Challenges
A letter report issued by the General Accounting Office with an abstract that begins "The Department of Defense (DOD) downsized its acquisition workforce by half in the past decade. It now faces serious imbalances in the skills and experience of its remaining workforce and the potential loss of highly specialized knowledge if many of its acquisition specialists retire. DOD created the Acquisition 2005 Task Force to study its civilian acquisition workforce and develop a strategy to replenish personnel losses. In response to a legislative mandate, DOD reported on its plans to implement the task force's recommendations as required by the National Defense Authorization Act for Fiscal Year 2002. DOD's report shows that it has made progress in reshaping its acquisition workforce. For example, DOD is working to remove barriers to its strategic planning initiative; continuing to test various human capital innovations; and has begun making significant changes to its acquisition workforce-training program. DOD's report provides information on implementation of the task force's recommendations and their status. However, for many initiatives, DOD did not clearly describe the actions taken or when they occurred, nor did it identify all planned actions and schedules for completing the initiatives."
Date:
April 26, 2002
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Adequacy of a Small Quantity Site RH-TRU Waste Program in Meeting Proposed WIPP Characterization Objectives
The first remote-handled transuranic (RH-TRU) waste is expected to be permanently disposed of at the Waste Isolation Pilot Plant (WIPP) during Fiscal Year (FY) 2003. The first RH-TRU waste shipments are scheduled from the Battelle Columbus Laboratories (BCL) to WIPP in order to facilitate compliance with BCL Decommissioning Project (BCLDP) milestones. Milestones requiring RH-TRU waste containerization and removal from the site by 2004 in order to meet a 2006 site closure goal, established by Congress in the Defense Facilities Closure Projects account, necessitated the establishment and implementation of a site-specific program to direct the packaging of BCLDP RH-TRU waste prior to the finalization of WIPP RH-TRU waste characterization requirements. The program was designed to collect waste data, including audio and videotape records of waste packaging, such that upon completion of waste packaging, comprehensive data records exist from which compliance with final WIPP RH-TRU waste characterization requirements can be demonstrated. With the BCLDP data records generated to date and the development by the U.S. Department of Energy (DOE)-Carlsbad Field Office (CBFO) of preliminary documents proposing the WIPP RH-TRU waste characterization program, it is possible to evaluate the adequacy of the BCLDP program with respect to meeting proposed characterization objectives. The BCLDP …
Date:
February 26, 2002
Creator:
Biedscheid, J.; Stahl, S.; Devarakonda, M.; Peters, K. & Eide, J.
Object Type:
Article
System:
The UNT Digital Library
Advanced Reservoir Characterization and Evaluation of CO2 Gravity Drainage in the Naturally Fractured Spraberry Trend Area, Class III
The goal of this project was to assess the economic feasibility of CO2 flooding the naturally fractured Spraberry Trend Area in west Texas. This objective was accomplished through research in four areas: (1) extensive characterization of the reservoirs, (2) experimental studies of crude oil/brine/rock (COBR) interactions in the reservoirs, (3) reservoir performance analysis, and (4) experimental investigations on CO2 gravity drainage in Spraberry whole cores. This provides results of the final year of the six-year project for each of the four areas.
Date:
July 26, 2002
Creator:
Knight, Bill & Schechter, David S.
Object Type:
Report
System:
The UNT Digital Library
AIDS in Africa
Sub-Saharan Africa has been far more severely affected by AIDS than any other part of the world. The United Nations reports that 25.3 million adults and children are infected with the HIV virus in the region, which has about 10% of the world's population but more than 70% of the worldwide total of infected people. This report discusses this issue in detail, including the cause of the African AIDS epidemic, the social and economic consequences, response and treatment, and U.S. policy.
Date:
September 26, 2002
Creator:
Copson, Raymond W.
Object Type:
Report
System:
The UNT Digital Library
Los Alamos National Laboratory Tritium Technology Deployments Large Scale Demonstration and Deployment Project
This paper describes the organization, planning and initial implementation of a DOE OST program to deploy proven, cost effective technologies into D&D programs throughout the complex. The primary intent is to accelerate closure of the projects thereby saving considerable funds and at the same time being protective of worker health and the environment. Most of the technologies in the ''toolkit'' for this program have been demonstrated at a DOE site as part of a Large Scale Demonstration and Deployment Project (LSDDP). The Mound Tritium D&D LSDDP served as the base program for the technologies being deployed in this project but other LSDDP demonstrated technologies or ready-for-use commercial technologies will also be considered. The project team will evaluate needs provided by site D&D project managers, match technologies against those needs and rank deployments using a criteria listing. After selecting deployments the project will purchase the equipment and provide a deployment engineer to facilitate the technology implementation. Other cost associated with the use of the technology will be borne by the site including operating staff, safety and health reviews etc. A cost and performance report will be prepared following the deployment to document the results.
Date:
February 26, 2002
Creator:
McFee, J.; Blauvelt, D.; Stallings, E. & Willms, S.
Object Type:
Article
System:
The UNT Digital Library
ALARA Controls and the Radiological Lessons Learned During the Uranium Fuel Removal Projects at the Molten Salt Reactor Experiment
The removal of uranium-233 (233 U) from the auxiliary charcoal bed (ACB) of the Molten Salt Reactor Experiment (MSRE), performed from January through May 2001, created both unique radiological challenges and widely-applicable lessons learned. In addition to the criticality concerns and alpha contamination, 233U has an associated intense gamma photon from the cocontaminant uranium-232 (232U) decaying to thallium-208 (208Tl). Therefore, rigorous contamination controls and significant shielding were implemented. Extensive, timed mock-up training was also imperative to minimize individual and collective personnel exposures. Back-up shielding and containment techniques (that had been previously developed for defense in depth) were used successfully to control significant, changed conditions. Additional controls were placed on tests and on recovery designs to assure a higher level of safety throughout the removal operations. This paper delineates the manner in which each difficulty was solved, while relating the relevance of the results and the methodology to other projects with high dose-rate, highly-contaminated ionizing radiation hazards. Because of the distinctive features of and current interest in molten salt technology, a brief overview is provided. Also presented is the detailed, practical application of radiological controls integrated into, rather than added after, each evolution of the project--thus demonstrating the broad-based benefits of …
Date:
February 26, 2002
Creator:
Gilliam, B. J.; Chapman, J. A. & Jugan, M. R.
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 127, No. 17, Ed. 1 Thursday, September 26, 2002
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
September 26, 2002
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
[Alexander Hogg School, (looking N at rear elevation)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking N at rear entrance)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking NE at west and S (rear) elevations)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking s at front elevation)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking SE at front and west elevations)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking south at N Cornerstone)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (Looking South at North entrance)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking w donw 1st floor corridor)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking w down basement cooridor)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[Alexander Hogg School, (looking west fro m1st floor landing to entrance)]
Photograph of the Alexander Hogg School (located at 900 St. Louis Ave) in Fort Worth, Texas.
Date:
June 26, 2002
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
An Alternative to Performing Remote-Handled Transuranic Waste Container Headspace Gas Sampling and Analysis
The Waste Isolation Pilot Plant (WIPP) is operating under a Resource Conservation and Recovery Act (RCRA) Hazardous Waste Facility Permit (HWFP) for contact-handled (CH) transuranic (TRU) waste. The HWFP contains limitations on allowable emissions from waste disposed in the underground. This environmental performance standard imposed on the WIPP consists of limiting volatile organic compound (VOC) emissions from emplaced waste to ensure protection of human health and the environment. The standard is currently met by tracking individual waste container headspace gas concentrations, which are determined by headspace gas sampling and analysis of CH TRU waste containers. The WIPP is seeking a HWFP modification to allow the disposal of remote-handled (RH) TRU waste. Because RH TRU waste is limited to approximately 5% of the waste volume and is emplaced in the disposal room walls, it is possible to bound the potential RH TRU waste contribution to VOC emissions using conservative upper bounds. These conservative upper bounds were developed as an alternative to RH TRU waste canister headspace gas sampling and analysis. The methodology used to perform the calculations used to evaluate VOC emissions from emplaced RH TRU waste canisters applied the same equations as those used to evaluate VOC emissions in the …
Date:
February 26, 2002
Creator:
Spangler, L. R.; Djordjevic, S. M.; Kehrman, R. F. & Most, W. A.
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 103, No. 309, Ed. 1 Tuesday, February 26, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 26, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History