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Development of the chemical and electrochemical coal cleaning process

Description: Studies concerning the use of flotation as an alternative method of separating liberated mineral matter from chemical/electrochemical coal cleaning (CECC) treated coal were continued using Elkhorn No. 3 coal. The results obtained using different methods of recovering the clean product after CECC treatment showed trends similar to those observed previously with Pittsburgh No. 8 coal. The use of flotation after CECC treatment of the Elkhorn No. 3 coal was found to be more efficient than wet-scree… more
Date: January 1, 1991
Creator: Basilio, C.I. & Yoon, Roe-Hoan.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Potential application of a single-particle aerosol spectrometer for monitoring aerosol size at the DOE filter test facilities

Description: At each of the three Department of Energy (DOE) filter test facilities (FTF), a commercial single particle aerosol spectrometer, the LAS-X, was used to demonstrate that the test aerosol produced by each of the Q107 high efficiency particulate air (HEPA) filter test systems was polydisperse with a geometric standard deviation greater than 1.35, and a geometric mean diameter less than 0.2 ..mu..m. These results confirm the work of others that the OWL (mechanical analyzer) is inadequate for assuri… more
Date: January 1, 1982
Creator: Salzman, G.C.; Ettinger, H.J.; Tillery, M.I.; Wheat, L.D. & Grace, W.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effect of particle-size variation on filtration efficiency measured by the HEPA-filter quality-assurance test

Description: A theoretical model has been used to calculate the filtration efficiency that would be indicated by the photometer for challenge aerosols of different size distributions and HEPA filters with different efficiencies as functions of particle size. The model compares the calculated overall efficiency indicated by the photometer with efficiencies calculated with respect to particle number and mass. This calculation assumes three aerosol distributions previously measured at the Filter Test Facilitie… more
Date: January 1, 1982
Creator: Tillery, M.I.; Salzman, G.C. & Ettinger, H.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Integrated loading rate determination for wastewater infiltration system sizing

Description: One of the principal parameters used in wastewater system design is the hydraulic loading rate. Historically the determination of the loading rate has been a straight forward process involving selection of a rate based on soil texture or water percolation rate. Research and experience over the past decade has provided additional insight into the complex processes occurring within wastewater-amended soil systems and has suggested the fallacy of this approach. A mean grain size vs. sorting (MESO)… more
Date: January 1, 1991
Creator: Jenssen, P.D. (Norges Landbrukshoegskole, Aas (Norway). Centre for Soil and Environmental Research) & Siegrist, R.L. (Oak Ridge National Lab., TN (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Examination of DEHP filter test methods and alternative methods in light of suspected DOP carcinogenicity

Description: The QA test could be simplified and possibly provide more information about filter performance if a polydisperse aerosol is used. There are several difficulties associated with the monodisperse generator. The generator used to produce large quantities of monodisperse aerosol is an expensive part of the equipment required for QA tests. The generator also requires diligent operation to provide consistent performance. The generation of a consistent polydisperse aerosol would be an easier task. Mod… more
Date: January 1, 1982
Creator: Tillery, M.I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

F/H Effluent Treatment Facility filtration upgrade alternative evaluations overview

Description: The F/H Effluent Treatment Facility (ETF) at the Savannah River Site (SRS) was designed to treat process wastewater from the 200-F/H Production Facilities (routine wastewater) as well as intermittent flows from the F/H Retention Basins and F/H Cooling Water Basins (nonroutine wastewater). Since start-up of the ETF at SRS in 1988, the treatment process has experienced difficulties processing routine and nonroutine wastewater. Studies have identified high bacteria and bacterial decomposition prod… more
Date: January 1, 1992
Creator: Miles, W.C. Jr.; Poirier, M.R. & Brown, D.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electrofibrous prefilters for use in the nuclear industry

Description: High efficiency particulate air (HEPA) filters are used in the nuclear industry to remove radioactive aerosols. Although these HEPA filters are effective and practical devices, they generate a large volume of radioactive waste and are costly to purchase and operate. In an effort to reduce the HEPA's operational cost and volume of radioactive waste, the Department of Energy (DOE) has contracted with LLNL to develop electrofibrous prefilters to extend the service life of HEPA filters. A comprehen… more
Date: January 1, 1980
Creator: Bergman, W.; Taylor, R. D.; Hebard, H. D.; Lum, B. Y.; Kuhl, W. D.; Boling, R. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Particle deposition in granular media. Annual progress report

Description: Studies performed under Contract DE-AC02-79-ER10386.A000 Particle Deposition in Granular Media during the period June 1, 1979 to date are described. These studies include the design and construction of apparatus for filtration experiments and a complete trajectory analysis for the calculation of the initial collection efficiency of granular media. The results of the trajectory analysis have been used to develop a generalized correlation of the collection efficiency.
Date: January 1, 1980
Creator: Tien, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

El Dorado micellar polymer project. Technical letter for July, 1977

Description: Activities during the report period are summarized. Preflush injection in the Chesney Pattern averaged 1535 barrels per day at 190 psi plant pressure during the month of July. Combined micellar water and micellar oil injection in the Hegberg pattern was 75.6 barrels per day during July. Distomaceous earth filtration was set up in efforts to improve filterability of Hegberg soluble oil. Acid treatments were performed on four injection wells in the Hegberg pattern. The selection of polymer and lo… more
Date: January 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pilot scale processing of simulated Savannah River Site high level radioactive waste

Description: The Savannah River Laboratory operates the Integrated DWPF Melter System (IDMS), which is a pilot-scale test facility used in support of the start-up and operation of the US Department of Energy's Defense Waste Processing Facility (DWPF). Specifically, the IDMS is used in the evaluation of the DWPF melter and its associated feed preparation and offgass treatment systems. This article provides a general overview of some of the test work which has been conducted in the IDMS facility. The chemistr… more
Date: January 1, 1991
Creator: Hutson, N. D.; Zamecnik, J. R.; Ritter, J. A. & Carter, J. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Filter-separable constituents of groundwater from the Columbia River plateau

Description: The purpose of this procedure is to prepare groundwaters from the Columbia River basalt, northeastern Oregon, for batch partitioning experiments by concentration dissolved organic carbon (DOC) in water samples by ultrafiltration. Water samples were double-filtered through 0.4-..mu..m Nuclepore polycarbonate filters to remove particulates before beginning the ultrafiltration process. The results of these experiments do not indicate a consistent relation between the distribution of americium with… more
Date: January 1, 1984
Creator: Seitz, M.G. & Boggs, S. Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Identification of colloids in nuclear waste glass reactions

Description: Characterization data for particulates formed under a variety of laboratory leaching conditions that simulate glass reaction in a repository environment are presented. Data on the particle size distributions and filterable fractions for neptunium, plutonium, americium, and curium were obtained by filtrations through a series of filters with pore sizes ranging from 1 {mu}m to 3.8 nm. The neptunium was found to be largely nonfilterable. Americium and plutonium were associated with filterable part… more
Date: January 1, 1991
Creator: Cunnane, J.C. & Bates, J.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effects of sample collection device and filter pore size on concentrations of metals in groundwater samples

Description: The Savannah River Site has conducted a study to statistically quantify differences in metals concentrations as a function of sampling device and filter treatment. Twelve wells screened in unconsolidated coastal plain sediments were sampled for the study. All wells had histories of detectable toxic metals concentrations. Unfiltered and filtered (using 10 and 0.45 micron filters) samples were collected from all wells to evaluate the effects of filtering. To compare the effects of sampling device… more
Date: January 1, 1990
Creator: Clark, S.B.; Park, N.M. & Tuckfield, R.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of Improved Iron-Aluminide Filter Tubes and Elements

Description: The purpose of this Cooperative Research and Development Agreement (CRADA) was to explore and develop advanced manufacturing techniques to fabricate sintered iron-aluminide intermetallic porous bodies used for gas filtration so as to reduce production costs while maintaining or improving performance in advanced coal gasification and combustion systems. The use of a power turbine fired with coal-derived synthesis gas requires some form of gas cleaning in order to protect turbine and downstream c… more
Date: January 14, 2008
Creator: Judkins, R. R.; Sutton, T. G.; Miller, C. J. & Tortorelli, P. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrochemical arsenic remediation for rural Bangladesh

Description: Arsenic in drinking water is a major public health problem threatening the lives of over 140 million people worldwide. In Bangladesh alone, up to 57 million people drink arsenic-laden water from shallow wells. ElectroChemical Arsenic Remediation(ECAR) overcomes many of the obstacles that plague current technologies and can be used affordably and on a small-scale, allowing for rapid dissemination into Bangladesh to address this arsenic crisis. In this work, ECAR was shown to effectively reduce 5… more
Date: January 1, 2009
Creator: Addy, Susan Amrose
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Mechanisms of Formation Damage in Matrix Permeability Geothermal Wells

Description: Matrix permeability geothermal formations are subject to damage during well drilling and completion. Near well bore permeability impairment that may occur as a result of particulate invasion, and chemical interaction between formation clays, drilling mud filtrates and fohation brines is investigated. Testing of various filtration chemistries on the permeability of East Mesa sandstone indicates that permeability is significantly impaired by the flow of low salinity formation brines. This damage … more
Date: January 1, 1981
Creator: Bergosh, J. L.; Wiggins, R. B.; Enniss, D. O. & Jones, A. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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DISSOLUTION OF NEPTUNIUM OXIDE RESIDUES

Description: This report describes the development of a dissolution flowsheet for neptunium (Np) oxide (NpO{sub 2}) residues (i.e., various NpO{sub 2} sources, HB-Line glovebox sweepings, and Savannah River National Laboratory (SRNL) thermogravimetric analysis samples). Samples of each type of materials proposed for processing were dissolved in a closed laboratory apparatus and the rate and total quantity of off-gas were measured. Samples of the off-gas were also analyzed. The quantity and type of solids re… more
Date: January 12, 2009
Creator: Kyser, E
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Special filter samples of Hanford process effluent gases

Description: This document contains information on special filter samples of Hanford Process Effluent Gases. The filters are identified by code numbers only. Included in this paper are tables explaining the sample code numbers, sampling locations, and process conditions during sampling. Also included, is a copy of the monthly and quarterly average results for Regional Monitoring's routine stack program for the fourth quarter of 1956.
Date: January 22, 1957
Creator: Soldat, J.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reclamation and disposal of water-based machining coolants

Description: The Oak Ridge Y-12 Plant, which is operated by the Union Carbide Corporation, Nuclear Division for the Department of Energy under US government contract W-7405-eng-26, currently uses about 10{sup 6} L/yr (260,000 gal/yr) of water-based coolants in its machining operations. These coolants are disposed of in a 110,000-L (29,000-gal) activated sludge reactor. The reactor has oxidized an average of 38.6 kg of total organic carbon (TOC) per day with an overall efficiency of 90%. The predominant bact… more
Date: January 1, 1982
Creator: Taylor, P. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Americium migration in basalt and implications to repository risk analysis

Description: Experiments were performed with americium as a minor component in groundwater. Batch adsorption, migration through column, and filtration experiments were performed. It was determined in batch experiments that americium is strongly adsorbed from solution. It was determined with filtration experiments that large percentages of the americium concentrations suspended by the contact solutions in batch experiments and suspended by the infiltrating groundwater in migration experiments were associated… more
Date: January 1, 1980
Creator: Rickert, P.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurement and characterization of filtration efficiencies for prefilter materials used in aerosol filtration

Description: In applications where the filtration of large quantities of mixed (liquid and solid) aerosols is desired, a multistage filtration system is often employed. This system consists of a prefilter, a High Efficiency Particulate Air (HEPA) filter, and any number of specialized filters particular to the filtration application. The prefilter removes liquids and any large particles from the air stream, keeping them from prematurely loading the HEPA filter downstream. The HEPA filter eliminates 99.97% of… more
Date: January 1, 1991
Creator: Sciortino, J. (State Univ. Coll., Fredonia, NY (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CIF---Design basis for an integrated incineration facility

Description: This paper discusses the evolution of chosen technologies that occurred during the design process of the US Department of Energy (DOE) incineration system designated the Consolidated Incineration Facility (CIF) as the Savannah River Plant, Aiken, South Carolina. The Plant is operated for DOE by the Westinghouse Savannah River Company. The purpose of the incineration system is to treat low level radioactive and/or hazardous liquid and solid wastes by combustion. The objective for the facility is… more
Date: January 1, 1991
Creator: Bennett, G.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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