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Evaluation of Ion Exchange Materials in K Basin Floor Sludge and Potential Solvents for PCB Extraction from Ion Exchange Materials
Approximately 73 m{sup 3} of heterogeneous solid material, ''sludge,'' (upper bound estimate, Packer 1997) have accumulated at the bottom of the K Basins in the 100 K Area of the Hanford Site. This sludge is a mixture of spent fuel element corrosion products, ion exchange materials (organic and inorganic), graphite-based gasket materials, iron and aluminum metal corrosion products, sand, and debris (Makenas et al. 1996, 1997). In addition, small amounts of polychlorinated biphenyls (PCBs) have been found. These small amounts are significant from a regulatory standpoint. Ultimately, it is planned to transfer the K Basins sludge to the Hanford double shell tanks (DSTs). Chemical pretreatment is required to address criticality issues and the destruction or removal of PCBs before the K Basin sludge can be transferred to the DSTs. Eleven technologies have been evaluated (Papp 1997) as potential pretreatment methods. Based on the evaluations and engineering studies and limited testing, Fluor Daniel Hanford recommended solvent washing of the K Basin sludge, followed by nitric acid dissolution and, potentially, peroxide addition (FDH 1997). The solvent washing (extraction) and peroxide addition would be used to facilitate PCB removal and destruction. Following solvent extraction, the PCBs could be distilled and concentrated for disposal …
Date:
April 10, 1999
Creator:
Schmidt, A. J.; Klinger, G. S. & Bredt, P. R.
Object Type:
Report
System:
The UNT Digital Library
FINAL REPORT ''Superconducting Materials''. January 1,1996 to March 31, 2000
Our theory group has discovered a mechanism for unconventional electron interaction effects in high-temperature superconductors. Electron collisions for selected structures provide an explanation for the observed neutron scattering data on high-temperature superconductors. Our University of Virginia team suggested that the observed magnetic susceptibility in copper oxide superconductors should also be seen in chromium and the metallic antiferromagnet V{sub 2}O{sub 3}, and neutron scattering experiments verify this prediction.
Date:
April 10, 1999
Creator:
Ruvalds, John
Object Type:
Report
System:
The UNT Digital Library
The Gilmer Mirror (Gilmer, Tex.), Vol. 122, No. 29, Ed. 1 Saturday, April 10, 1999
Semiweekly newspaper from Gilmer, Texas that includes local, state, and national news along with advertising.
Date:
April 10, 1999
Creator:
Overton, Mac
Object Type:
Newspaper
System:
The Portal to Texas History
Heavy Vehicle Technologies Program Retrospective and Outlook
OHVT Mission is to conduct, in collaboration with our heavy vehicle industry partners and their suppliers, a customer-focused national program to research and develop technologies that will enable trucks and other heavy vehicles to be more energy efficient and able to use alternative fuels while simultaneously reducing emissions.
Date:
April 10, 1999
Creator:
Eberhardt, James J.
Object Type:
Presentation
System:
The UNT Digital Library
High voltage, fast turn-on and turn-off switch: Final report for period September 2, 1998 - March 17, 1999
The aspect to be investigated during this contract was an electron-beam triggered diamond switch to be used in high power modulators. Today's high power modulators require higher voltage switches than those developed to date. Specifically, the proposed 1 TeV linear collider, the NLC/ILC at the Stanford Linear Accelerator Center (SLAC), consists of two linacs with 6600 X-Band klystrons powered by 3300 high power modulators. These modulators require switches capable of handling 80 kV, switching 8 kA with pulse durations ranging from 2 ps (linac) to 6 {micro}s (pre-linac) with switching times <50 ns at pulse repetition frequencies up to 180 Hz. In addition the large number of switches and other components dictate a pulse to pulse jitter of <10 ns and a mean time between failures of at least 50,000 hours. The present approach is to use hydrogen filled thyratrons. While these switches meet the voltage and conduction current requirements they lack the required reliability (pulse to pulse jitter) and lifetime. Research to improve these aspects is in progress. A solid state switch inherently offers the required reliability and lifetime. However, Si-based switches developed to date are limited to about 5 kV and several must be stacked in series to …
Date:
April 10, 1999
Creator:
Schein, Jochen; Xu, Xiaoxi; Qi, Niansheng; Gensler, Steven; Prasad, Rahul & Krishnan, Mahadevan
Object Type:
Report
System:
The UNT Digital Library
["A Long Time Coming: The Music of Steven Meeks" concert video]
Video footage from The Black Academy of Arts and Letters recorded during Dallas-based composer and musician Steven Meeks's debut album performance. The footage shows various speakers preceding the concert. The music performed ranges from jazz, ballads and Brazilian dance music as outlined in the press release and program. A small brass and percussion ensemble accompany Steven Meeks.
Date:
April 10, 1999
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 89, No. 29, Ed. 1 Saturday, April 10, 1999
Semiweekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 10, 1999
Creator:
Gann, Sherry
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 84, No. 178, Ed. 1 Saturday, April 10, 1999
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 10, 1999
Creator:
Horn, Richard A.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Steven Meeks performing for his new CD "A Long Time Coming"]
Video footage from The Black Academy of Arts and Letters recorded during their event hosted by Omega Psi Psi Fraternity of Steve Meeks performing a 2 hour concert featuring his new jazz album "A Long Time Coming" on April 10th 1999. The VHS footage is generally dark but shows Meeks on stage with a small jazz band at the Clarence Muse Café Theatre.
Date:
April 10, 1999
Creator:
Meeks, Steven
Object Type:
Video
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 27, No. 25, Ed. 1 Friday, April 10, 1998
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
April 10, 1998
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
1998 report on Hanford Site land disposal restrictions for mixed waste
This report was submitted to meet the requirements of Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) Milestone M-26-01H. This milestone requires the preparation of an annual report that covers characterization, treatment, storage, minimization, and other aspects of managing land-disposal-restricted mixed waste at the Hanford Facility. The US Department of Energy, its predecessors, and contractors on the Hanford Facility were involved in the production and purification of nuclear defense materials from the early 1940s to the late 1980s. These production activities have generated large quantities of liquid and solid mixed waste. This waste is regulated under authority of both the Resource Conservation and Recovery Act of l976 and the Atomic Energy Act of 1954. This report covers only mixed waste. The Washington State Department of Ecology, US Environmental Protection Agency, and US Department of Energy have entered into the Tri-Party Agreement to bring the Hanford Facility operations into compliance with dangerous waste regulations. The Tri-Party Agreement required development of the original land disposal restrictions (LDR) plan and its annual updates to comply with LDR requirements for mixed waste. This report is the eighth update of the plan first issued in 1990. The Tri-Party Agreement requires and the baseline plan …
Date:
April 10, 1998
Creator:
Black, D.G.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 99, No. 24, Ed. 1 Friday, April 10, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 10, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
B Plant canyon sample TK-21-1 analytical results for the final report
This document is the analytical laboratory report for the TK-21-1 sample collected from the B Plant Canyon on February 18, 1998. The sample was analyzed in accordance with the Sampling and Analysis Plan for B Plant Solutions (SAP) (Simmons, 1997) in support of the B Plant decommissioning project. Samples were analyzed to provide data both to describe the material which would remain in the tanks after the B Plant transition is complete and to determine Tank Farm compatibility. The analytical results are included in the data summary table (Table 1).
Date:
April 10, 1998
Creator:
Steen, F. H.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 138, Ed. 1 Friday, April 10, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
April 10, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 94, No. 29, Ed. 1 Friday, April 10, 1998
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
April 10, 1998
Creator:
Keasling, Edna & Phillips, Jimmy
Object Type:
Newspaper
System:
The Portal to Texas History
Chickasha Daily Express (Chickasha, Okla.), Ed. 1 Friday, April 10, 1998
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 10, 1998
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Civil Rights Commission Reauthorization
This report provides a brief overview of the reauthorization of the civil rights commission.
Date:
April 10, 1998
Creator:
Gladstone, Leslie W.
Object Type:
Report
System:
The UNT Digital Library
Civil Rights Commission Reauthorization
The Civil Rights Commission Act of 1998 (H.R. 3117) would reauthorize the commission through FY2001. It was introduced by Representative Canady on January 28, 1998, referred to the Committee on the Judiciary, and reported with an amendment on March 2, 1998. It passed the House, amended, by voice vote on March 18.
Date:
April 10, 1998
Creator:
Gladstone, Leslie W.
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 103, No. 29, Ed. 1 Friday, April 10, 1998
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
April 10, 1998
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Conservation Compliance for Agriculture: Status and Policy Issues
This program, known as "conservation compliance," was amended in 1990 and 1996. This paper reviews the compliance concept, the program requirements, and the implementation record. It also introduces three policy topics: the effect of compliance on erosion rates and patterns; the effectiveness and flexibility of implementation; and the possible impact of changes to commodity policies enacted in the 1996 farm bill.
Date:
April 10, 1998
Creator:
Zinn, Jeffrey A.
Object Type:
Report
System:
The UNT Digital Library
Consolidation of cladding hulls from the electrometallurgical treatment of spent fuel.
To consolidate metallic waste that is residual from Argonne National Laboratory's electrometallurgical treatment of spent nuclear fuel, waste ingots are currently being cast using an induction furnace located in a hot cell. These ingots, which have been developed to serve as final waste forms destined for repository disposal, are stainless steel (SS)-Zr alloys (the Zr is very near 15 wt.%). The charge for the alloys consists of stainless steel cladding hulls, Zr from the fuel being treated, noble metal fission products, and minor amounts of actinides that are present with the cladding hulls. The actual in-dated cladding hulls have been characterized before they were melted into ingots, and the final as-cast ingots have been characterized to determine the degree of consolidation of the charge material. It has been found that ingots can be effectively cast from irradiated cladding hulls residual from the electrometallurgical treatment process by employing an induction furnace located in a hot cell.
Date:
April 10, 1998
Creator:
Keiser, D. D. Jr.
Object Type:
Article
System:
The UNT Digital Library
The Daily Chickasha Star (Chickasha, Okla.), Vol. 97, No. 52, Ed. 1 Friday, April 10, 1998
Newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 10, 1998
Creator:
Settle, David
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Dallas Voice (Dallas, Tex.), Vol. 14, No. 50, Ed. 1 Friday, April 10, 1998
Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
April 10, 1998
Creator:
Vercher, Dennis
Object Type:
Newspaper
System:
The UNT Digital Library
Detector-accelerator interface studies at the Tevatron
A summary of studies is presented towards minimization of beam loss in the critical locations at the Fermilab Tevatron to reduce background rates in the collider detectors and to protect machine components. Based on detailed Monte-Carlo simulations, measures have been proposed and incorporated in the machine to reduce accelerator-related instantaneous and residual background levels in the D0 and CDF detectors. Measurements performed are in good agreement with the predictions. Most recent results on acceptance and background rates in the D0 and CDF forward detectors are presented and discussed in detail.
Date:
April 10, 1998
Creator:
Drozhdin, A. I. & Mokhov, N. V.
Object Type:
Article
System:
The UNT Digital Library