37 Matching Results

Search Results

Advanced search parameters have been applied.
in creator/contributor: "Poirier, M. R."  
Results: 1 - 24 next
open access

Phase C Flygt Mixer Test Results

Description: The Savannah River Site (SRS) teamed with the Pacific Northwest National Laboratory (PNNL), Oak Ridge National Laboratory (ORNL), and ITT Flygt Corporation to conduct a test program evaluating shrouded axial propeller mixers (Flygt mixers) for heel removal in SRS Tank 19. SRS is identifying and investigating techniques to remove sludge heels from waste tanks such as Tank 19.
Date: June 8, 1999
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Filtration of a Hanford AW-101 Waste Sample

Description: The objectives of this test were: determine the optimum filter operating parameters to maximize filter flux; determine whether the mean filter flux across the dewatering cycle matches or exceeds the plant design throughput; dewater the feed sample to 20 wt percentage insoluble solids; wash the sample to determine which species are removed during the washing process; provide filtrate to the ion exchange test program; the project flowsheet for the separation of LAW entrained solids assumes the en… more
Date: May 12, 2004
Creator: POIRIER, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alpha Removal Process Filter Cleaning Recommendations

Description: The Savannah River Site (SRS) is developing a process to treat radioactive waste that is low in cesium-137, but high in strontium-90, plutonium, uranium, and neptunium. Defense Waste Processing Facility (DWPF) personnel asked Savannah River Technology Center (SRTC) personnel to provide recommendations for chemically cleaning the Alpha Removal Process filters. The authors reviewed previous SRTC filter cleaning experience with bench-scale radioactive filters and pilot-scale simulant filters from … more
Date: October 30, 2003
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recommendation for Using Smaller (0.1 micro sign) Pore-Size Media for Filtration in Salt Waste Processing Project

Description: Based on experimental studies with simulated and actual wastes, we recommend adopting the use of 0.1-micron pore-size, sintered stainless-steel filter elements within the design of the Salt Waste Processing Facility. Furthermore, adopting the smaller pore size elements for the Actinide Removal Process would result in a significant risk to the start-up schedule due to delays for buying, installing, and testing new equipment. The existing 0.5-micron pore-size filters will provide nearly equivalen… more
Date: May 2, 2003
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pilot-Scale Testing of a 0.1 Micron Filter with SRS Simulated High Level Waste

Description: The Savannah River Site selected caustic side solvent extraction as the preferred treatment technology for SRS High Level Waste. As a pretreatment step for the CSSX process the facility will contact the incoming salt solution which contains entrained sludge with monosodium titanate to adsorb strontium and selected alpha emitting radionuclides. Savannah River Technology Center and University of South Carolina personnel conducted engineering scale filtration tests using the Filtration Research En… more
Date: December 10, 2003
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Axial Pressure Drop Measurements during Pilot-Scale Testing of a Mott Crossflow Filter

Description: The Department of Energy selected caustic side solvent extraction (CSSX) as the preferred cesium removal technology for Savannah River Site waste. As a pretreatment step for the CSSX flowsheet, personnel contact the incoming salt solution that contains entrained sludge with monosodium titanate (MST) to adsorb strontium and select actinides. They filter the resulting slurry to remove the sludge and MST. The conclusions from this work is detailed in this report.
Date: May 13, 2003
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of Alternative Approaches for Cleaning Mott Porous Metal Filters

Description: The Department of Energy selected Caustic Side Solvent Extraction (CSSX) as the preferred cesium removal technology for Savannah River Site (SRS) waste. As a pretreatment step for the CSSX flowsheet, the incoming salt solution that contains entrained sludge is contacted with monosodium titanate (MST) to adsorb strontium and select actinides. The resulting slurry is filtered to remove the sludge and MST. Filter fouling occurs during this process. At times, personnel can increase the filtrate rat… more
Date: October 30, 2003
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gas-Liquid Mass Transfer in Agitated Tanks Containing Non-Newtonian Fluids

Description: The purpose of the tests was to investigate the effects of operating parameters, such as KTPB concentration, time, sodium molarity, temperature, salt composition, sludge concentration, and radiation dose, on benzene retention and release. This paper describes the results of the tests.
Date: November 6, 1998
Creator: Poirier, M.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Suspending Insoluble Solids Waste Tanks with Shrouded Axial Impeller Mixers

Description: The Savannah River Site is in the process of removing waste (sludge and salt cake) from million gallon waste tanks. The authors are conducted a test program to determine mixer requirements for suspending sludge heels using shrouded axial impeller mixers. The authors will present and discuss the data generated during the tests.
Date: November 9, 1998
Creator: Poirier, M.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Suspending Zeolite Particles In Tanks

Description: The Savannah River Site (SRS) is in the process of removing waste (sludge and salt cake) from million gallon waste tanks. The current practice for removing waste from the tanks is adding water, agitating the tanks with long shaft vertical centrifugal pumps, and pumping the sludge/salt solution from the tank to downstream treatment processes. This practice has left sludge heels ({tilde} 30,000 gallons) in the bottom of the tanks. SRS is evaluating shrouded axial impeller mixers for removing the … more
Date: January 19, 1999
Creator: Poirier, M.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Benzene TCLP results from saltstone prepared with 2X ITP flowsheet concentrations of phenylborates

Description: The Savannah River Site (SRS) teamed with the Pacific Northwest National Laboratory (PNNL), Oak Ridge National Laboratory (ORNL), and ITT Flygt Corporation to conduct a test program evaluating shrouded axial propeller mixers (Flygt mixers) for heel removal in SRS Tank 19. SRS is identifying and investigating techniques to remove sludge heels from waste tanks such as Tank 19.
Date: July 25, 2000
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cross-Flow Filtration of Simulated High-Level Waste Sludge (Tank 8F)

Description: This report discussed results of tests which investigated filter performance with slurry containing simulated Tank 8F Sludge at concentrations between 0.044 wt percent and 4.80 wt percent. Testing used a slurry containing 3.5 wt percent Tank 8F simulated sludge and a target concentration of 0.06 weight percent MST.
Date: June 7, 2001
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Benzene Evolution Rates from Saltstone Prepared with 2X ITP Flowsheet Concentrations of Phenylborates and Heated to 85 Degrees C

Description: The Saltstone Facility provides the final treatment and disposal of low level liquid wastes streams. At the Saltstone Facility, the waste is mixed with cement, flyash, and slag to form a grout, which is pumped into large concrete vaults where it cures. The facility started radioactive operations in June 1990. High Level Waste Engineering requested Savannah River Technology Center to determine the effect of TPB and its decomposition products (i.e., 3PB, 2PB, and 1PB) on the saltstone process. Pr… more
Date: August 23, 2000
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Flocculation and Filtration Procedures Applied to WSRC Sludge: A Report from B. Yarar, Colorado School of Mines

Description: This report, addresses fundamentals of flocculation processes shedding light on why WSRC researchers have not been able to report the discovery of a successful flocculant and acceptable filtration rates. It also underscores the importance of applying an optimized flocculation-testing regime, which has not been adopted by these researchers. The final part of the report proposes a research scheme which should lead to a successful choice of flocculants, filtration aids (surfactants) and a filtrati… more
Date: June 4, 2001
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Particle Size of Simulated SRS Sludge, Actual SRS Sludge, and Monosodium Titanate

Description: The authors reviewed and compiled typical data from prior measurements of the size of simulated sludge, actual sludge, and monosodium titanate (MST) particles. For the actual waste, the authors attempted to collect all available data from prior measurements. Since few prior measurements exist and since these analyses occurred using different analytical methods that span over two decades, the authors cannot verify the consistency of the methods used to make the measurements nor fully ensure the … more
Date: August 7, 2003
Creator: Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative filtration testing program: Pre-evaluation of test results

Description: Based on results of testing eight solids removal technologies and one pretreatment option, it is recommended that a centrifugal ultrafilter and polymeric ultrafilter undergo further testing as possible alternatives to the Norton Ceramic filters. Deep bed filtration should be considered as a third alternative, if a backwashable cartridge filter is shown to be inefficient in separate testing.
Date: September 28, 1990
Creator: Georgeton, G.K. & Poirier, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative Filtration Testing Program: Pre-Evaluation of Test Results

Description: Based on results of testing eight solids removal technologies and one pretreatment option, it is recommended that a centrifugal ultrafilter and polymeric ultrafilter undergo further testing as possible alternatives to the Norton Ceramic filters. Deep bed filtration should be considered as a third alternative, if a backwashable cartridge filter is shown to be inefficient in separate testing.
Date: September 28, 1990
Creator: Georgeton, G. K. & Poirier, M. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DWPF recycle minimization: Brainstorming session

Description: The recycle stream from the DWPF constitutes a major source of water addition to the High Level Waste evaporator system. As now designed, the entire flow of 3.5 to 6.5 gal/min (@ 25% and 75% attainment, respectively), or 2 gal/min during idling, flow to the 2H evaporator system (Tank 43). Substantial improvement in the HLW water balance and tank volume management is expected if the DWPF recycle to the HLW evaporator system can be significantly reduced. A task team has been appointed to study al… more
Date: October 12, 1993
Creator: Jacobs, R. A. & Poirier, M. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Defining And Characterizing Sample Representativeness For DWPF Melter Feed Samples

Description: Representative sampling is important throughout the Defense Waste Processing Facility (DWPF) process, and the demonstrated success of the DWPF process to achieve glass product quality over the past two decades is a direct result of the quality of information obtained from the process. The objective of this report was to present sampling methods that the Savannah River Site (SRS) used to qualify waste being dispositioned at the DWPF. The goal was to emphasize the methodology, not a list of outco… more
Date: October 29, 2013
Creator: Shine, E. P. & Poirier, M. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Alternative Filter Media for the Rotary Microfilter

Description: The Savannah River Site is currently developing and testing several processes to treat high level radioactive liquid waste. Each of these processes has a solid-liquid separation process that limits its throughput. Savannah River National Laboratory researchers identified and tested the rotary microfilter as a technology to increase solid-liquid separation throughput. The authors believe the rotary microfilter throughput can be improved by using a better filter membrane. Previous testing showed … more
Date: November 9, 2011
Creator: Poirier, M. R.; Herman, D. T. & Bhave, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

F-Canyon Sludge Physical Properties

Description: The Site Deactivation and Decommissioning (SDD) Organization is evaluating options to disposition the 800 underground tanks (including removal of the sludge heels from these tanks). To support this effort, D&D requested assistance from Savannah River National Laboratory (SRNL) personnel to determine the pertinent physical properties to effectively mobilize the sludge from these tanks (Tanks 804, 808, and 809). SDD provided SRNL with samples of the sludge from Tanks 804, 808, and 809. The au… more
Date: August 22, 2005
Creator: Poirier, M. R.; Hansen, P. R. & Fink, S. D.
Item Type: Refine your search to only Report
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

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: July 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
Back to Top of Screen