Search Results

Advanced search parameters have been applied.
open access

Engineering-scale in situ vitrification of simulated Oak Ridge National Laboratory liquid waste seepage trenches

Description: An engineering-scale test of in situ vitrification (ISV) was successfully completed in January 1990 using Oak Ridge National Laboratory (ORNL) nonradioactive cesium (CS)-spiked soils. The objectives of this engineering-scale ISV test were to: (1) assess the application of electrode feeding to ORNL soils; (2) evaluate several real-time temperature monitoring methods for the melt; (3) evaluate Cs retention in the glass; and (4) determine the effectiveness of a pretreatment filter for removal of C… more
Date: March 1, 1992
Creator: Peterson, M.E.; Powell, T.D. & Timmerman, C.L.
Partner: UNT Libraries Government Documents Department
open access

Ultrasonic cleaning of depleted uranium material as an alternative to nitric acid cleaning

Description: Nitric acid is used to clean depleted uranium in the form of cast billets, and cast and wrought parts in the processing cycle and is the largest contributor of waste to the West End Treatment Facility (WETF). An estimated 27,000 gallons of liquid and 75 to 95% of all uranium received was sent to the WETF for processing from this facility in our baseline year. Because wrought parts account for the largest throughput at the nitric acid facility, an alternative cleaning method for these parts was … more
Date: May 28, 1991
Creator: Frye, L.E. & Senviel, C.B.
Partner: UNT Libraries Government Documents Department
open access

Design and performance of a full-scale spray calciner for nonradioactive high-level-waste-vitrification studies

Description: In the spray calcination process, liquid waste is spray-dried in a heated-wall spray dryer (termed a spray calciner), and then it may be combined in solid form with a glass-forming frit. This mixture is then melted in a continuous ceramic melter or in an in-can melter. Several sizes of spray calciners have been tested at PNL- laboratory scale, pilot scale and full scale. Summarized here is the experience gained during the operation of PNL's full-scale spray calciner, which has solidified approx… more
Date: June 1, 1981
Creator: Miller, F.A.
Partner: UNT Libraries Government Documents Department
open access

Computer simulation models relevant to ground water contamination from EOR or other fluids - state-of-the-art

Description: Ground water contamination is a serious national problem. The use of computers to simulate the behavior of fluids in the subsurface has proliferated extensively over the last decade. Numerical models are being used to solve water supply problems, various kinds of enertgy production problems, and ground water contamination problems. Modeling techniques have progressed to the point that their accuracy is only limited by the modeller's ability to describe the reservoir in question and the heteroge… more
Date: March 1, 1986
Creator: Kayser, M. B. & Collins, A. G.
Partner: UNT Libraries Government Documents Department
open access

Electrolysis of plutonium in neutral and basic solutions

Description: Experiments were conducted on electrolysis of Pu in waste streams. Removal of Pu by this process is maximum at pH 11. Runs on an actual waste stream showed that: Pu can be electrolyzed from neutral or basic solutions down to 10/sup -10/ g/l. Am can also be removed. The removal efficiency is pH dependent. The deposits can be removed by acid leaching. (DLC)
Date: January 1, 1978
Partner: UNT Libraries Government Documents Department
open access

Removal of methylenedianiline from chemical plant wastewater

Description: Methylenedianiline (MDA) is contained in the wastewater from a manufacturing process now under consideration. Because this material is a known liver toxin and a suspected carcinogen, use of the process was contingent upon finding an economical method for the comprehensive removal of MDA from wastewater that is fed to public streams. Details of the overall investigative method pursued are presented, along with a description of the specific chemical and physical treatments that resulted in MDA re… more
Date: January 1, 1978
Creator: Young, D. A. & Parker, B. G.
Partner: UNT Libraries Government Documents Department
open access

Documentation of toxicity testing results on increased supernate treatment rate of 2700 gallons/batch

Description: In February 1991, Reactor Materials increased the rate of supernate treatment in the M-Area Dilute Effluent Treatment Facility (DETF) from 1800 gallons to [approximately]2700 gallons of supernate per 36,000 gallon dilute wastewater batch. The first release of the treated effluent began on March 3, 1991. A series of whole effluent toxicity tests was conducted on the DETF effluent to determine if the increased supernate concentration would result in any chronic toxicity affects in the receiving s… more
Date: July 6, 1992
Creator: Pickett, J.B.
Partner: UNT Libraries Government Documents Department
open access

Engineering assessment and certification of integrity of the 141-R1U1 tank system

Description: This Engineering Assessment and Certification of Integrity of retention tank 141-R1U1 is in response to the requirements of 40 CFR 265.191 for an existing tank system that stores hazardous waste and does not have secondary containment. This technical assessment has been reviewed by an independent, qualified, California registered professional engineer, who has certified the tank system to be adequately designed and compatible with the stored waste so that it will not collapse rupture, or fail. … more
Date: September 1, 1990
Creator: Graser, D.A. (Science Applications International Corp. (USA))
Partner: UNT Libraries Government Documents Department
open access

NDE environmental, safety and health activities at Lawrence Livermore National Laboratory

Description: There has been a dramatic increase in environmental protection concerns over the last few decades. This has resulted in an extensive Environmental, Safety, and Health (ES H) effort within the Department of Energy and at the Lawrence Livermore National Laboratory. The Laboratory has made a number of Lab-wide commitments to assure that it's environmental policy is properly implemented: The Laboratory will comply fully with local, county, state, and federal regulations and DOE orders; all employee… more
Date: October 1, 1990
Creator: Fritts, W. T.
Partner: UNT Libraries Government Documents Department
open access

Occurrence of human enteroviruses in a groundwater aquifer recharged with tertiary wastewater effluents

Description: A two-year study of the impact of human viruses on a tertiary treatment-groundwater recharge system located on Long Island is currently nearing completion. Raw influents, chlorinated tertiary effluents, and groundwater from beneath a uniquely designed recharge basin were assayed on a weekly basis for the presence of indigenous human enteroviruses and coliform bacteria. While high concentrations of viruses were routinely isolated from sewage influents, the chlorinated tertiary effluents were pos… more
Date: January 1, 1978
Creator: Vaughn, J M & Landry, E F
Partner: UNT Libraries Government Documents Department
open access

Cost benefits from applying advanced heat rejection concepts to a wet/dry-cooled binary geothermal plant

Description: Optimized ammonia heat rejection system designs were carried out for three water allocations equivalent to 9, 20, and 31% of that of a 100% wet-cooled plant. The Holt/Procon design of a 50-MWe binary geothermal plant for the Heber site was used as a design basis. The optimization process took into account the penalties for replacement power, gas turbine capital, and lost capacity due to increased heat rejection temperature, as well as added base plant capacity and fuel to provide fan and pump p… more
Date: March 1, 1981
Creator: Faletti, D. W.
Partner: UNT Libraries Government Documents Department
open access

Results of acute and chronic toxicity tests conducted at SRS NPDES outfalls, July--October 1991

Description: Acute (48 hour LC50) and chronic (7-day reproductive impairment) toxicity tests were conducted on Ceriodaphnia dubia in water collected from 53 NPDES outfalls. All tests were conducted at the in-stream waste concentration. only 12 of the 53 outfalls showed no evidence of toxicity. Twenty-eight of the outfalls were acutely toxic, often producing 100% mortality during the first day of exposure. Fourteen outfalls had no discharge at the time of sampling and could not be tested. Three outfalls were… more
Date: January 1, 1992
Creator: Specht, W. L.
Partner: UNT Libraries Government Documents Department
open access

Environmental surveillance data report for the first quarter of 1992

Description: The Environmental Surveillance and Protection Section within the Office of Environmental Compliance and Documentation at the Oak Ridge National Laboratory (ORNL) is responsible for the development and implementation of an environmental program to (1) ensure compliance with all federal, state, and Department of Energy (DOE) reporting requirements to quantitatively demonstrate prevention, control, and abatement ofenvironmental pollution; (2) monitor the adequacy of containment and effluent contro… more
Date: December 1, 1992
Creator: Goldberg, P. Y.; Cooper, R. C.; Hamilton, L. V.; Hughes, J. F.; Horwedel, B. M.; Loffman, R. S. et al.
Partner: UNT Libraries Government Documents Department
open access

First annual report on the Biological Monitoring and Abatement Program at Oak Ridge National Laboratory

Description: As a condition of the National Pollutant Discharge Elimination System (NPDES) permit issued to Oak Ridge National Laboratory (ORNL) on April 1, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for White Oak Creek (WOC); selected tributaries of WOC, including Fifth Creek, First Creek, Melton Branch, and Northwest Tributary; and the Clinch River. BMAP consists of seven major tasks that address both radiological and nonradiological contaminants in the aquatic and terrestria… more
Date: August 1, 1992
Creator: Loar, J. M.; Adams, S. M.; Blaylock, B. G.; Boston, H. L.; Frank, M. L.; Garten, C. T. et al.
Partner: UNT Libraries Government Documents Department
open access

Alternatives for Managing Wastes From Reactors and Post-Fission Operations in the LWR Fuel Cycle: Volume 2. Alternatives for Waste Treatment

Description: Volume II of the five-volume report is devoted to the description of alternatives for waste treatment. The discussion is presented under the following section titles: fuel reprocessing modifications; high-level liquid waste solidification; treatment and immobilization of chop-leach fuel bundle residues; treatment of noncombustible solid wastes; treatment of combustible wastes; treatment of non-high-level liquid wastes; recovery of transuranics from non-high-level wastes; immobilization of misce… more
Date: May 1, 1976
Partner: UNT Libraries Government Documents Department
open access

Methods in environmental sampling for radionuclides

Description: This paper reviews methods of environmental sampling for radionuclides around operational and preoperational nuclear power plants. We examine in detail the implications of the established radiation standards and their effect on sampling procedures. Transport mechanisms of radionuclides in liquid effluent, and the deposition of airborne radionuclides onto soil and vegetation are discussed. We evaluate water- and soil-sampling procedures. The Lawrence Livermore Laboratory program of terrestrial g… more
Date: February 1, 1976
Creator: Ragaini, R. C.
Partner: UNT Libraries Government Documents Department
open access

Removal of plutonium and uranium from process streams using ultrafiltration membranes

Description: A series of experiments using hollow fiber ultrafiltration modules was run on various Mound Laboratory waste streams contaminated with /sup 238/Pu, /sup 239/Pu, and /sup 233/U. These modules had various molecular weight cut-offs ranging from 2000 to 80,000. The types of waste solution studied consisted of waste water from the ''hot'' laundry, decontamination water from the Plutonium Processing (PP) Building, and influent to the Waste Disposal (WD) Building. These experiments have shown that the… more
Date: January 1, 1977
Creator: Roberts, R. C. & Koenst, J. W.
Partner: UNT Libraries Government Documents Department
open access

100 Area soil washing bench-scale test procedures

Description: This document describes methodologies and procedures for conducting soil washing treatability tests in accordance with the 100 Area Soil Washing Treatability Test Plan (DOE-RL 1992, Draft A). The objective of this treatability study is to evaluate the use of physical separation systems and chemical extraction methods as a means of separating chemically and radioactively contaminated soil fractions from uncontaminated soil fractions. These data will be primarily used for determining feasibility … more
Date: March 1, 1993
Creator: Freeman, H. D.; Gerber, M. A.; Mattigod, S. V. & Serne, R. J.
Partner: UNT Libraries Government Documents Department
open access

Immobilization and Limited Reoxidation of Technetium-99 by Fe(II)-Goethite

Description: This report summarizes the methodology used to test the sequestration of technetium-99 present in both deionized water and simulated Hanford Tank Waste Treatment and Immobilization Plant waste solutions.
Date: September 30, 2010
Creator: Um, Wooyong; Chang, Hyun-shik; Icenhower, Jonathan P.; Qafoku, Nikolla; Smith, Steven C.; Serne, R. Jeffrey et al.
Partner: UNT Libraries Government Documents Department
open access

Tritium waste control project progress report, October--December 1975. [Tritiated waste decontamination by molecular excitation; catalytic exchange detritiation studies; development of shipping containers for tritiated liquid waste]

Description: In the tritiated liquid waste decontamination by molecular excitation studies, further calculations were performed on the hydrogen atom-water exchange reactions. Assembly and testing of the cell to be used for the measurement of the HTO IR spectrum were completed. As a result of findings from trial loadings using HD as a surrogate for HT in the oxidation system, it is believed that larger quantities of HTO will be required to obtain the desired ir spectrum. This appears to be a result of a sign… more
Date: July 30, 1976
Creator: Bixel, J. C. & Kershner, C. J.
Partner: UNT Libraries Government Documents Department
open access

Assessment and control of environmental contamination from trace elements in coal processing wastes

Description: Environmental problems associated with discarded refuse from coal cleaning and processing are recognized, including waste-bank instability, acid drainage from disposal areas, and noxious emissions from burning wastes. EPA, and other organizations, support efforts to develop methods for controlling forms of environmental contamination. Attention has turned to the environmental hazards posed by the vast array of potentially harmful trace elements in coal refuse materials. It is established that m… more
Date: January 1, 1976
Creator: Wewerka, E. M.; Williams, J. M. & Wanek, P. L.
Partner: UNT Libraries Government Documents Department
open access

Denitration of Savannah River Plant waste streams

Description: Partial denitration of waste streams from Savannah River Plant separations processes was shown to significantly reduce the quantity of waste solids to be stored as an alkaline salt cake. The chemical processes involved in the denitration of nonradioactive simulated waste solutions were studied. Chemical and instrumental analytical techniques were used to define both the equilibrium concentrations and the variation of reactants and products in the denitration reaction. Mechanisms were proposed t… more
Date: July 1, 1976
Creator: Orebaugh, E. G.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen