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Testing and modeling of seepage into underground openings in aheterogeneous fracture system at Yucca Mountain, Nevada

Description: We discuss field activities designed to characterize seepage into an underground opening at the potential site for geologic storage of high-level radioactive waste (HLRW) at Yucca Mountain, Nevada, and the use of these data for development and calibration of a model for predicting seepage into planned HLRW emplacement drifts. Air-injection tests were conducted to characterize the permeability of the fractured rock, and liquid-release tests (LRTs) were conducted and seepage monitored to characte… more
Date: March 25, 2002
Creator: Ahlers, C. F.; Trautz, R. C.; Cook, P. J. & Finsterle, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Surface Remediation in the Aleutian Islands: A Case Study of Amchitka Island, Alaska

Description: Amchitka Island, Alaska, was at one time an integral player in the nation's defense program. Located in the North Pacific Ocean in the Aleutian Island archipelago, the island was intermittently inhabited by several key government agencies, including the U.S. Army, the U.S. Atomic Energy Commission (predecessor agency to the U.S. Department of Energy), and the U.S. Navy. Since 1993, the U.S. Department of Energy (DOE) has conducted extensive investigations on Amchitka to determine the nature and… more
Date: February 25, 2002
Creator: Giblin, M. O.; Stahl, D. C. & Bechtel, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Application of Probabilistic Performance Assessment Modeling for Optimization of Maintenance Studies for Low-Level Radioactive Waste Disposal Sites at the Nevada Test Site

Description: The U.S. Department of Energy (DOE), National Nuclear Security Administration of the Nevada Operations Office (NNSA/NV) operates and maintains two active facilities on the Nevada Test Site (NTS) that dispose defense-generated low-level radioactive waste (LLW), mixed radioactive waste, and ''classified waste'' in shallow trenches and pits. The operation and maintenance of the LLW disposal sites are self-regulated by the DOE under DOE Order 435.1. This Order requires formal review of a performanc… more
Date: February 25, 2002
Creator: Crowe, B.; Yucel, V.; Rawlinson, S.; Black, P.; Carilli, J. & DiSanza, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ABSORBING WIPP BRINES: A TRU WASTE DISPOSAL STRATEGY

Description: Los Alamos National Laboratory (LANL) has completed experiments involving 15 each, 250- liter experimental test containers of transuranic (TRU) heterogeneous waste immersed in two types of brine similar to those found in the underground portion of the Waste Isolation Pilot Plant (WIPP). To dispose of the waste without removing the brine from the test containers, LANL added commercially available cross-linked polyacrylate granules to absorb the 190 liters of brine in each container, making the w… more
Date: February 25, 2002
Creator: Yeamans, D. R. & Wrights, R. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Handling and Segregating System for 55-Gallon Drums Project-Current Progress on Testing and Integration at the Western Environmental Technology Office

Description: The Savannah River Site (SRS) along with other U.S. Department of Energy (DOE) sites have thousands of drums of mixed transuranic (TRU) waste that are being stored awaiting transfer to the Waste Isolation Pilot Plant (WIPP). The SRS drums contain noncompliant items that must meet WIPP waste acceptance criteria (WAC) before being accepted. A system is being developed by the DOE Transuranic and Mixed Waste Focus Area (TMFA) under the Robotics Crosscut Program to repackage drummed, mixed TRU waste… more
Date: February 25, 2002
Creator: Battleson, D. M.; Johnson, S. E.; Montgomery, J. L.; Bryson, S. B.; Stacey, M. C. & Frazee, C. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

THERMAL DESTRUCTION OF HIGHLY CHLORINATED MIXED WASTES WITHOUT GENERATING CORROSIVE OFF-GASES USING MOLTEN SALT OXIDATION (1,2)

Description: A pilot-scale MSO (Molten Salt Oxidation) system was used to process 45-gallons of a halogenated mixed waste that is difficult to treat with other thermal systems. The mixed waste was a halogenated solvent that consisted mostly of methylchloroform. The 80 weight percent of waste consisting of highly corrosive chlorine was captured in the first process vessel as sodium chloride. The sodium chloride leached chrome from that process vessel and the solidified salt exhibited the toxicity characteris… more
Date: February 25, 2002
Creator: Smith, W. & Feizollahi, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The High Background Radiation Area in Ramsar Iran: Geology, Norm, Biology, LNT, and Possible Regulatory Fun

Description: The city of Ramsar Iran hosts some of the highest natural radiation levels on earth, and over 2000 people are exposed to radiation doses ranging from 1 to 26 rem per year. Curiously, inhabitants of this region seem to have no greater incidence of cancer than those in neighboring areas of normal background radiation levels, and preliminary studies suggest their blood cells experience fewer induced chromosomal abnormalities when exposed to 150 rem ''challenge'' doses of radiation than do the bloo… more
Date: February 25, 2002
Creator: Karam, P. Andrew
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Update on Modeling for Effective Diesel Engine Aftertreatment Implementation - Master Plan, Status and Critical Needs

Description: An integrated diesel engine-aftertreatment-vehicle system is extremely complex with numerous interacting variables and an unlimited number of control options. An experimental approach to develop an optimized viable system is tedious, if at all possible. Sophisticated component, subsystem and integrated simulation tools offer an excellent option of a virtual lab approach to the development of such a complex system. A viable and robust diesel engine aftertreatment system can thus be developed wit… more
Date: August 25, 2002
Creator: Bolton, B.; Fan, X.; Hakim, N.; Sisken, K. & Zhang, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Low-Level Liquid Waste Processing Pilot Studies Using a Vibratory Shear Enhancing Process (VSEP) for Filtration

Description: A previous EPRI study evaluated potential treatment methods for the removal of iron from BWR waste streams. Of the methods investigated, high shear filtration using the vibratory shear-enhanced process (VSEP) showed the most promise to effectively and economically remove high iron concentrations from backwash receiving tank waste. A VSEP filter uses oscillatory vibration to create high shear at the surface of the filter membrane. This high shear force significantly improves the filter's resista… more
Date: February 25, 2002
Creator: Bushart, S.; Tran, P. & Asay, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Water and Wastewater Polishing Using 3M Selective Separation Remediation Cartridge Technology

Description: 3M has developed technology for selectively removing trace levels of dissolved contaminant materials from liquids using systems operating at flow rates up to 50 gallons per minute. This technology combines active particle chemistries with a particle-loaded membrane to achieve a new medium for liquid waste processing--a spiral wound filter cartridge. This technology has shown success by generating high decontamination factors and reducing contaminants to part per trillion levels. The spiral woun… more
Date: February 25, 2002
Creator: Hoffmann, Keith M.; Scanlan, Thomas J. & Seely, David C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Notice of Energy RD&D Project

Description: The goal of the project is to develop a premium fuel from the waste materials created from the production of coal and lumber. A specific objective is to achieve a fuel having an energy value around 9,000 to 10,000 Btu/lb from the processed waste material. The fine coal obtained from coal refuse ponds will be cleaned using advanced separation technologies and then dewatered to lower moisture levels than currently realized by adding wood fibers utilizing an enhanced dewatering technique. The clea… more
Date: July 25, 2002
Creator: Honaker, Rick & Young, Geoffrey
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Focal Length Measurements for the National Ignition Facility Large Lenses

Description: The focal length of the spatial filter and final focus lenses for the National Ignition Facility are measured to < {+-} 0.01% using a combination of master lenses and production-oriented techniques for relative focal length.
Date: January 25, 2002
Creator: Parham, T G; McCarville, T J; Johnson, M A & Kiikka, C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Report on Transport and Loading of Explosives in the Femtosecond Tank, Room 1711A HEAF 00-010

Description: The current OSP associated with Room 1711A located in Building 191 (HEAF) sets a limit of 5 grams Net Explosive Weight (NEW) of explosives for the room. A question was raised as to the capability of that room to withstand the overpressure created by a detonation of 5 grams NEW of explosives. Calculations were inconclusive, but indicated the wallboard would not remain intact if there was a detonation of 5 grams NEW at a distance of eight feet from the wall. These calculations did not seem logica… more
Date: April 25, 2002
Creator: Hill, D L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electrochemical NO{sub x} Sensors for Automotive Diesel Exhaust

Description: New emissions regulations will increase the need for compact, inexpensive sensors for monitoring and control of automotive exhaust gas pollutants. Species of interest include hydrocarbons, carbon monoxide, and oxides of nitrogen (NO{sub x}). The current work is directed towards the development of fast, high sensitivity electrochemical NO{sub x} sensors for automotive diesel applications. We have investigated potentiometric NO sensors with good sensitivity and fast response when operated in 10% … more
Date: November 25, 2002
Creator: Martin, L. P.; Pham, A. Q. & Glass, R. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

TESTING OF NOVEL INORGANIC ION EXCHANGERS FOR THE REMOVAL OF RADIOCOBALT FROM NPP WASTE EFFLUENTS

Description: New antimonysilicate (SbSi) ion exchanger is being developed for industrial use. Tentative screening tests using simulated waste liquids have indicated that this material can remove most key radionuclides such as {sup 60}Co, {sup 90}Sr and {sup 137}Cs in much broader pH-range than existing commercial materials. As a part of the development program, the material is being tested for the removal of {sup 60}Co from real nuclear power plant waste waters. In this context, test with small-scale labora… more
Date: February 25, 2002
Creator: Harjula, R.; Paajanen, A.; Mueller, T. & Lehto, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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