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Analysis of Tank 241-AN-106 characterization and grout performance criteria

Description: This report provides an assessment of how well we can resolve the following issues concerning Tank 241-AN-106 at the Hanford Reservation, given the current state of information: How well we can characterize the contents of 241-AN-106; whether the degree of characterization is sufficient to use 241-AN-106 wastes to develop tests of grout adequacy. The wastes must be characterized not only to ensure grout adequacy but also to provide assurance that the wastes can be successfully and safely transf… more
Date: February 1, 1993
Creator: Liebetrau, A.M. & Anderson, C.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane

Description: Amax R D will perform laboratory scale development of a promising, practical catalyst for the selective oxidation of methane to methanol. The primary component of this catalyst is vanadium-phosphate (VPO) which has shown good activity and selectivity in the partial oxidation of n-butane and propane but has not been studied in detail for methane oxidation. The goal of the project is to develop a catalyst which allows methane oxidation to methanol to be conducted at high conversion and selectivit… more
Date: March 4, 1993
Creator: McCormick, Robert L. & Jha, Mahesh C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Leach testing of in situ stabilization grouts containing additives to sequester contaminants

Description: This document discusses laboratory testing performed by Pacific Northwest Laboratory (PNL) for Westinghouse Hanford Company (WHC) of special grout formulations that incorporate specific sequestering agents to help improve the ability of the cement to resist contaminant leaching. To enhance the sequestering of contaminants we chose five additives to introduce (singly) to the control cement. The additives were Florida pebble phosphate, clinoptilolite (a natural zeolite), ferrous sulfide (a reduct… more
Date: April 1, 1993
Creator: Serne, R. J.; Ames, L. L.; Martin, P. F. C.; LeGore, V. L.; Lindenmeier, C. W. (Pacific Northwest Lab., Richland, WA (United States)) & Phillips, S. J. (Westinghouse Hanford Co., Richland, WA (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research and engineering assessment of biological solubilization of phosphate

Description: This research and engineering assessment examined a microbial phosphate solubilization process as a method of recovering phosphate from phosphorus containing ore compared to the existing wet acid and electric arc methods. A total of 860 microbial isolates, collected from a range of natural environments were tested for their ability to solubilize phosphate from rock phosphate. A bacterium (Pseudomonas cepacia) was selected for extensive characterization and evaluation of the mechanism of phospha… more
Date: March 1, 1993
Creator: Rogers, R. D.; McIlwain, M. E.; Losinski, S. J. & Taylor, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development and testing of ion exchangers for treatment of liquid wastes at Oak Ridge National Laboratory

Description: This report addresses three areas of waste treatment: (1) treatment of newly generated low-level liquid waste and Melton Valley Storage Tank (MVST) supernate using inorganic ion exchangers; (2) treatment of processing streams at the Radiochemical Engineering Development Center (REDC); and (3) removal of radionuclides from organic solutions. Distribution of various radionuclides between simulated waste solutions and several sorbents was determined in batch tests. Inorganic ion exchangers were pr… more
Date: March 1, 1993
Creator: Collins, J. L.; Davidson, D. J.; Chase, C. W.; Egan, B. Z. (Oak Ridge National Lab., TN (United States)); Ensor, D. D.; Bright, R. M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemically Bonded Phosphate Ceramics for Radioactive and Mixed Waste Solidification and Stabilization

Description: Results of an initial investigation of low temperature setting chemically bonded magnesium ammonium phosphate (MAP) ceramics as waste form materials, for solidification and stabilization of radioactive and mixed waste, are reported. The suitability of MAP for solidifying and encapsulating waste materials was tested by encapsulating zeolites at loadings up to [approximately]50 wt%. The resulting composites exhibited very good compressive strength characteristics. Microstructure studies show that… more
Date: January 1993
Creator: Wagh, A. S.; Cunnane, J. C.; Singh, D.; Reed, D. T.; Armstrong, S.; Subhan, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Savannah River Technology Center. Monthly report, May 1993

Description: This report covers the progress and accomplishments made at the Savannah River Technology Center for the month of May 1993. Progress is reported for projects in the following areas: reactors, tritium, separations, environmental, waste management, and general. General projects are: an eight week tutorial of the Los Alamos National Laboratory developed Monte Carlo Neutron Photon (MCNP) code; development of materials and fabrication technologies for the spallation and tritium targets for the accel… more
Date: May 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Structural analysis of amorphous phosphates using high performance liquid chromatography

Description: Determining the atomic-scale structure of amorphous solids has proven to be a formidable scientific and technological problem for the past 100 years. The technique of high-performance liquid chromatography (HPLC) provides unique detailed information regarding the structure of partially disordered or amorphous phosphate solids. Applications of the experimental technique of HPLC to phosphate solids are reviewed, and examples of the type of information that can be obtained with HPLC are presented.… more
Date: December 31, 1993
Creator: Sales, B. C.; Boatner, L. A.; Chakoumakos, B. C.; McCallum, J. C.; Ramey, J. O. & Zuhr, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

106-AN grout pilot-scale test HGTP-93-0501-02

Description: The Grout Treatment Facility (GTF) at Hanford, Washington will process the low-level fraction of selected double-shell tank (DST) wastes into a cementitious waste form. This facility, which is operated by Westinghouse Hanford Company (WHC), mixes liquid waste with cementitious materials to produce a waste form that immobilizes hazardous constituents through chemical reactions and/or microencapsulation. Over 1,000,000 gal of Phosphate/Sulfate Waste were solidified in the first production campaig… more
Date: May 1, 1993
Creator: Bagaasen, L. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of Tank 241-AN-106 characterization and grout performance criteria

Description: This report provides an assessment of how well we can resolve the following issues concerning Tank 241-AN-106 at the Hanford Reservation, given the current state of information: How well we can characterize the contents of 241-AN-106; whether the degree of characterization is sufficient to use 241-AN-106 wastes to develop tests of grout adequacy. The wastes must be characterized not only to ensure grout adequacy but also to provide assurance that the wastes can be successfully and safely transf… more
Date: February 1, 1993
Creator: Liebetrau, A. M. & Anderson, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermographic properties of eight blue-emitting phosphors

Description: We examined the effect of temperature on the light emission and absorption properties of eight phosphorescent compounds. The phosphors are commercially produced powders that emit mainly in the blue region when illuminated with ultraviolet light (220 to 400 nm). Excitation and emission spectra taken over the temperature range of 20 to 350C are presented for these phosphors. Data from the spectra indicate a strong temperature dependence over this temperature range. Maximum relative intensity chan… more
Date: January 1, 1993
Creator: Cunningham, D. M.; Allison, S. W. & Smith, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Leach testing of in situ stabilization grouts containing additives to sequester contaminants

Description: This document discusses laboratory testing performed by Pacific Northwest Laboratory (PNL) for Westinghouse Hanford Company (WHC) of special grout formulations that incorporate specific sequestering agents to help improve the ability of the cement to resist contaminant leaching. To enhance the sequestering of contaminants we chose five additives to introduce (singly) to the control cement. The additives were Florida pebble phosphate, clinoptilolite (a natural zeolite), ferrous sulfide (a reduct… more
Date: April 1, 1993
Creator: Serne, R. J.; Ames, L. L.; Martin, P. F. C.; LeGore, V. L.; Lindenmeier, C. W. & Phillips, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low-level waste disposal - Grout issue and alternative waste form technology

Description: Based on the Record of Decision (1) for the Hanford Defense Waste Environmental Impact Statement (HDW-EIS) (2), the US Department of Energy (DOE) is planning to dispose of the low-level fraction of double-shell tank (DST) waste by solidifying the liquid waste as a cement-based grout placed in near-surface, reinforced, lined concrete vaults at the Hanford Site. In 1989, the Hanford Grout Disposal Program (HGDP) completed a full-scale demonstration campaign by successfully grouting 3,800 cubic me… more
Date: February 1, 1993
Creator: Epstein, J. L. & Westski, J. H. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tank waste retrieval issues and options for their resolution

Description: The US Department of Energy has undertaken the significant challenge of remediating the high-level wastes currently being stored underground in tanks located at the Hanford Site in Washington State. A key element of the remediation process is the recovery of these defense production wastes in preparation for downstream processing and disposal. A number of technical and programmatic issues have been identified with the waste recovery process, referred to as retrieval. In response to these issues… more
Date: February 1, 1993
Creator: Miller, W. C.; Henderson, J. M.; Shen, E. J.; Stegen, L. C. & Wrzesinski, W. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization results for 106-AN grout produced in a pilot-scale test

Description: The Grout Treatment Facility (GTF) at Hanford. Washington, will process the low-level fraction of selected double-shell tank (DST) wastes into a cementitious waste form. This facility, which is operated by Westinghouse Hanford Company (WHC), mixes liquid waste with cementitious materials to produce a waste form that immobilizes hazardous constituents through chemical reactions and/or microencapsulation. Over one million gallons of phosphate/sulfate waste were solidified in the first production … more
Date: June 1, 1993
Creator: Lokken, R. O.; Bagaasen, L. M.; Martin, P. F. C.; Palmer, S. E. & Anderson, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

X-ray Absorption Spectroscopy of the Rare Earth orthophosphates

Description: X-ray Absorption Spectroscopy (XAS) of the Rare Earth (RE) 3d levels yields sharp peaks near the edges as a result of strong, quasi-atomic 3d{sup 10}4f{sup n} {yields} 3d-{sup 9}4f{sup n+1} transitions and these transitions exhibit a wealth of spectroscopic features. The XAS measurements of single crystal REPO{sub 4} (RE = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er) at the 3d edge were performed in the total yield mode at beam line 8-2 at the Stanford Synchrotron Radiation Laboratory (SSRL). The XA… more
Date: June 1, 1993
Creator: Shuh, D. K.; Terminello, L. J.; Boatner, L. A. & Abraham, M. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Transient studies of low temperature catalysts for methane conversion

Description: This report summarizes studies conducted during the past quarter on the partial oxidation of methane on the following catalysts: vanadium phosphate, unsupported and supported on silica, and on the silica (SiO[sub 2]) support. It was found that the unsupported vanadium phosphate catalyst exhibits some selectivity towards formaldehyde at relatively low methane conversions (up to 5% conversion). The selectivity decreases even further on the silica supported VPO catalyst without a significant incre… more
Date: January 1, 1993
Creator: Wolf, E. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemically bonded phosphate ceramics for radioactive and mixed waste solidification and stabilization

Description: Results of an initial investigation of low temperature setting chemically bonded magnesium ammonium phosphate (MAP) ceramics as waste form materials, for solidification and stabilization of radioactive and mixed waste, are reported. The suitability of MAP for solidifying and encapsulating waste materials was tested by encapsulating zeolites at loadings up to {approximately}50 wt%. The resulting composites exhibited very good compressive strength characteristics. Microstructure studies show that… more
Date: January 1, 1993
Creator: Wagh, A. S.; Cunnane, J. C.; Singh, D.; Reed, D. T.; Armstrong, S.; Subhan, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development and testing of ion exchangers for treatment of liquid wastes at Oak Ridge National Laboratory

Description: This report addresses three areas of waste treatment: (1) treatment of newly generated low-level liquid waste and Melton Valley Storage Tank (MVST) supernate using inorganic ion exchangers; (2) treatment of processing streams at the Radiochemical Engineering Development Center (REDC); and (3) removal of radionuclides from organic solutions. Distribution of various radionuclides between simulated waste solutions and several sorbents was determined in batch tests. Inorganic ion exchangers were pr… more
Date: March 1, 1993
Creator: Collins, J. L.; Davidson, D. J.; Chase, C. W.; Egan, B. Z.; Ensor, D. D.; Bright, R. M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research and engineering assessment of biological solubilization of phosphate

Description: This research and engineering assessment examined a microbial phosphate solubilization process as a method of recovering phosphate from phosphorus containing ore compared to the existing wet acid and electric arc methods. A total of 860 microbial isolates, collected from a range of natural environments were tested for their ability to solubilize phosphate from rock phosphate. A bacterium (Pseudomonas cepacia) was selected for extensive characterization and evaluation of the mechanism of phospha… more
Date: March 1, 1993
Creator: Rogers, R. D.; McIlwain, M. E.; Losinski, S. J. & Taylor, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tank characterization data report: Tank 241-C-112

Description: Tank 241-C-112 is a Hanford Site Ferrocyanide Watch List tank that was most recently sampled in March 1992. Analyses of materials obtained from tank 241-C-112 were conducted to support the resolution of the Ferrocyanide Unreviewed Safety Question (USQ) and to support Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) Milestone M-10-00. Analysis of core samples obtained from tank 241-C-112 strongly indicates that the fuel concentration in the tank waste will not support a… more
Date: April 1, 1993
Creator: Simpson, B. C.; Borsheim, G. L. & Jensen, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermographic properties of eight blue-emitting phosphors

Description: We examined the effect of temperature on the light emission and absorption properties of eight phosphorescent compounds. The phosphors are commercially produced powders that emit mainly in the blue region when illuminated with ultraviolet light (220 to 400 nm). Excitation and emission spectra taken over the temperature range of 20 to 350C are presented for these phosphors. Data from the spectra indicate a strong temperature dependence over this temperature range. Maximum relative intensity chan… more
Date: January 1, 1993
Creator: Cunningham, D.M.; Allison, S.W. & Smith, D.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sludge Treatment Evaluation: 1992 Technical progress

Description: This report documents Fiscal Year 1992 technical progress on the Sludge Treatment Evaluation Task, which is being conducted by Pacific Northwest Laboratory. The objective of this task is to develop a capability to predict the performance of pretreatment processes for mixed radioactive and hazardous waste stored at Hanford and other US Department of Energy (DOE) sites. Significant cost savings can be achieved if radionuclides and other undesirable constituents can be effectively separated from t… more
Date: January 1, 1993
Creator: Silva, L.J.; Felmy, A.R. & Ding, E.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Conversion of methane to higher hydrocarbons (Biomimetic catalysis of the conversion of methane to methanol). Final report

Description: In addition to inorganic catalysts that react with methane, it is well-known that a select group of aerobic soil/water bacteria called methanotrophs can efficiently and selectively utilize methane as the sole source of their energy and carbon for cellular growth. The first reaction in this metabolic pathway is catalyzed by the enzyme methane monooxygenase (MMO) forming methanol. Methanol is a technology important product from this partial oxidation of methane since it can be easily converted to… more
Date: September 1, 1993
Creator: Watkins, B. E.; Taylor, R. T. & Satcher, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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