Download or read book DEWATERING TREATMENT SCALE UP TESTING RESULTS OF HANFORD TANK WASTES written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents CH2M HILL Hanford Group Inc. (CH2M HILL) 2007 dryer testing results in Richland, WA at the AMEC Nuclear Ltd., GeoMelt Division (AMEC) Horn Rapids Test Site. It provides a discussion of scope and results to qualify the dryer system as a viable unit-operation in the continuing evaluation of the bulk vitrification process. A 10,000 liter (L) dryer/mixer was tested for supplemental treatment of Hanford tank low-activity wastes, drying and mixing a simulated non-radioactive salt solution with glass forming minerals. Testing validated the full scale equipment for producing dried product similar to smaller scale tests, and qualified the dryer system for a subsequent integrated dryer/vitrification test using the same simulant and glass formers. The dryer system is planned for installation at the Hanford tank farms to dry/mix radioactive waste for final treatment evaluation of the supplemental bulk vitrification process.
Download or read book Pretreatment Process Testing of Hanford Tank Waste for the US Department of Energy s Underground Storage Tank Integrated Demonstration written by and published by . This book was released on 1992 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Work conducted for the Underground Storage Tank Integrated Demonstration supports technology demonstration for tank remediation operations at the US Department of Energy's (DOE) Hanford Site and other DOE sites. Several technical areas within the demonstration are being investigated by the Waste Pretreatment Technology Development task to support final treatment and disposal of Hanford tank waste. The experimental work includes waste characterizations; dissolution, leaching and extraction tests; bulk salt separations by freeze crystallization; and radiochemical separations with extraction chromatography resins. Chemical species and particle size data provide background information for interpreting waste leaching and dissolution data. Tie major crystalline phases in one single-shell tank (SST) waste are sodium nitrate and bismuth phosphate, while the major phases in another SST waste are boehmite, gibbsite, and sodium nitrate. A scanning electron microscopy (SEM) method of particle size analysis shows that many of the sub-micron particles in the two SST wastes appear to be aggregates of smaller, spheroidal particles. In turn, leaching, dissolution, and extraction studies, performed with tank wastes, provide fundamental information needed to evaluate existing pretreatment technologies. Preliminary results from the dissolution of one SST waste indicate that 2M nitric acid may effectively leach enough transuranic material that the sludge could be disposed of as low level waste.
Download or read book Waste Tank Size Determination for the Hanford River Protection Project Cold Test Training and Mockup Facility written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the study was to determine the minimum tank size for the Cold Test Facility process testing of Hanford tank waste. This facility would support retrieval of waste in 75-ft-diameter DSTs with mixer pumps and SSTs with fluidic mixers. The cold test model will use full-scale mixer pumps, transfer pumps, and equipment with simulated waste. The study evaluated the acceptability of data for a range of tank diameters and depths and included identifying how the test data would be extrapolated to predict results for a full-size tank.
Download or read book Hanford Site Tank Waste Remediation Systems TWRS Management and Disposal of Radioactive Hazardous and Mixed Wastes City of Richland Grant County written by and published by . This book was released on 1996 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Assessment of Blending Hanford Tank Wastes written by and published by . This book was released on 1993 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: A parametric study of blending Hanford tank wastes identified possible benefits from blending wastes prior to immobilization as a high level or low level waste form. Track Radioactive Components data were used as the basis for the single-shell tank (SST) waste composition, while analytical data were used for the double-shell tank (DST) composition. Limiting components were determined using the existing feed criteria for the Hanford Waste Vitrification Plant (HWVP) and the Grout Treatment Facility (GTF). Results have shown that blending can significantly increase waste loading and that the baseline quantities of immobilized waste projected for the sludge-wash pretreatment case may have been drastically underestimated, because critical components were not considered. Alternatively, the results suggest further review of the grout feed specifications and the solubility of minor components in HWVP borosilicate glass. Future immobilized waste estimates might be decreased substantially upon a thorough review of the appropriate feed specifications.
Download or read book Environmental Remediation 91 written by United States. Department of Energy. Environmental Restoration Conference and published by . This book was released on 1991 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SUMMARY PLAN FOR BENCH SCALE REFORMER AND PRODUCT TESTING TREATABILITY STUDIES USING HANFORD TANK WASTE written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the sample selection, sample preparation, environmental, and regulatory considerations for shipment of Hanford radioactive waste samples for treatability studies of the FBSR process at the Savannah River National Laboratory and the Pacific Northwest National Laboratory.
Download or read book Hanford Tank Farms Waste Certification Flow Loop Test Plan written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A future requirement of Hanford Tank Farm operations will involve transfer of wastes from double shell tanks to the Waste Treatment Plant. As the U.S. Department of Energy contractor for Tank Farm Operations, Washington River Protection Solutions anticipates the need to certify that waste transfers comply with contractual requirements. This test plan describes the approach for evaluating several instruments that have potential to detect the onset of flow stratification and critical suspension velocity. The testing will be conducted in an existing pipe loop in Pacific Northwest National Laboratory's facility that is being modified to accommodate the testing of instruments over a range of simulated waste properties and flow conditions. The testing phases, test matrix and types of simulants needed and the range of testing conditions required to evaluate the instruments are described.
Download or read book Evaporation of Hanford Tank Sample AN 107 Mixed with Recycles written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A proof-of-technology demonstration for the Hanford River Protection Project (RPP) Hanford Tank Waste Treatment and Immobilization Plant (WTP) was performed by the Savannah River Technology Center (SRTC) at the Savannah River Site (SRS). As part of this demonstration, a sample of as-received Tank AN-107 waste was mixed with surrogate recycle and then evaporated to concentrate the mixture. A second test was conducted in which surrogate recycle was initially concentrated, then mixed with as-received AN-107 waste. Both of these tests were the first studies conducted that investigated the potential impact of secondary-waste recycle streams on the evaporation process using actual radioactive waste feed.
Download or read book Final Report Hanford Tank Waste Task Force Submitted to Washington State Department of Ecology U S Department of Energy U S Environmental Protection Agency written by Hanford Tank Waste Task Force and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Generic Test Plan for Solubility Screening Tests of Hanford Tank Waste written by and published by . This book was released on 2000 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waste pretreatment and immobilization requires the tank waste to be retrieved. Retrieval from tanks may require dilution. This test determines the effects of dilution on the mass of solids and their composition. This test plan gives test instructions, example data sheets, a waste compatibility review, and a waste stream fact sheet.
Download or read book Evaporation of a Large Decontaminated Hanford Tank Sample written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A radioactive sample (approximately 15 L) from Hanford tank 241-AN-102 was concentrated via evaporation at reduced pressure and temperature, to support flowsheet development and regulatory approval for the Hanford River Protection Project Waste Treatment Plant (RPP-WTP). The received sample (Envelope C) had been pretreated at the Savannah River Technology Center (SRTC) for removal of strontium and transuranic ions by precipitation and removal of cesium and technetium via ion exchange. The resulting pretreated Low Activity Waste (LAW) stream was the feed material for this evaporation test. The goals of this evaporation were to: (1) provide operating data -- including foaming and scaling tendencies -- for scale-up purposes, (2) obtain liquid and off-gas samples during steady-state operation for regulatory analysis, (3) conduct a ''final boildown'' after the steady-state operation to determine the solubility endpoint of the solution and the major precipitants, and (4) provide concentrated feed for a melter vitrification study to produce several kilograms of immobilized LAW glass product.
Download or read book Advances in Geochemical Testing of Key Contaminants in Residual Hanford Tank Waste written by William J. Deutsch and published by . This book was released on 2005 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hanford Tanks 241 C 202 and 241 C 203 Residual Waste Contaminant Release Models and Supporting Data written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As directed by Congress, the U.S. Department of Energy (DOE) established the Office of River Protection in 1998 to manage DOE's largest, most complex environmental cleanup project - retrieval of radioactive waste from Hanford tanks for treatment and eventual disposal. Sixty percent by volume of the nation's high-level radioactive waste is stored at Hanford in aging deteriorating tanks. If not cleaned up, this waste is a threat to the Columbia River and the Pacific Northwest. CH2M Hill Hanford Group, Inc., is the Office of River Protection's prime contractor responsible for the storage, retrieval, and disposal of Hanford's tank waste. As part of this effort, CH2M HILL Hanford Group, Inc. contracted with Pacific Northwest National Laboratory (PNNL) to develop release models for key contaminants that are present in residual sludge remaining after closure of Hanford Tanks 241-C-203 (C-203) and 241-C-204 (C-204). The release models were developed from data generated by laboratory characterization and testing of samples from these two tanks. These release models are being developed to support the tank closure risk assessments performed by CH2M HILL Hanford Group, Inc., for DOE.
Download or read book Global Modeling of Hanford Tank Waste Pretreatment Alternatives Within a Total Cleanup System Using ASPEN PLUS trademark written by and published by . This book was released on 1994 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this work is to evaluate and compare radionuclide separations/processing technologies being developed or considered as Hanford tank waste pretreatment alternatives. These technologies are integrated into a total cleanup system that includes tank waste retrieval, treatment, and disposal. Current Hanford flowsheets typically include only mature, developed technologies, not new technologies. Thus, this work examines the impact/benefits of inserting new technologies into Hanford flowsheets. Waste treatment must produce disposal fractions which are less troublesome than the original material. Researchers seeking effective treatment methods may lack the tools or expertise to fully understand the implications of their approach in terms of secondary and tertiary waste streams or the extent to which a unique new process will affect upstream or downstream processes. This work has developed and demonstrated mass balance methods that clarify the effect of including individual processes in an integrated waste treatment system, such as the Hanford cleanup system. The methods provide a measure of treatment effectiveness and a format for the researcher to understand waste stream interrelationships and determine how a particular treatment technology can best be used in a cleanup system. A description of the Hanford tank waste cleanup model developed using the ASPEN PLUS flowsheet simulation tool is given. Important aspects of the modeling approach are discussed along with a description of how performance measures were developed and integrated within the simulation to evaluate and compare various Hanford tank waste pretreatment alternatives.
Download or read book Hanford Tank 241 S 112 Residual Waste Composition and Leach Test Data written by Kirk J. Cantrell and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Test Plan for Fauske and Associates to Perform Tube Propagation Experiments with Simulated Hanford Tank Wastes written by Clark D. Carlson and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
