Savannah River Site High Level Waste Tank Closure

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Tank Wastes Planned for On-Site Disposal at Three Department of Energy Sites

Author : National Research Council,Division on Earth and Life Studies,Nuclear and Radiation Studies Board,Committee on the Management of Certain Radioactive Waste Streams Stored in Tanks at Three Department of Energy Sites
Publisher : National Academies Press
Page : 88 pages
File Size : 40,5 Mb
Release : 2005-08-05
Category : Science
ISBN : 9780309181747

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Tank Wastes Planned for On-Site Disposal at Three Department of Energy Sites by National Research Council,Division on Earth and Life Studies,Nuclear and Radiation Studies Board,Committee on the Management of Certain Radioactive Waste Streams Stored in Tanks at Three Department of Energy Sites Pdf

In response to a request from Congress, the U.S. Department of Energy (DOE) asked the National Academies to evaluate its plans for managing radioactive wastes from spent nuclear fuel at sites in Idaho, South Carolina, and Washington. This interim report evaluates storage facilities at the Savannah River Site in South Carolina, with a particular focus on plans to seal the tanks with grouting. The report finds that tanks at the site do not necessarily need to be sealed shut as soon as the bulk of the waste has been removed. Postponing permanent closure buys more time for the development and application of emerging technologies to remove and better immobilize residual waste, without increasing risks to the environment or delaying final closure of the "tank farms." The report also recommends alternatives to address the lack of tank space at the site, as well as the need for focused R&D activities to reduce the amount and improve the immobilization of residual waste in the tanks and to test some of the assumptions used in evaulating long-term risks at the site.

Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites

Author : National Research Council,Division on Earth and Life Studies,Nuclear and Radiation Studies Board,Committee on the Management of Certain Radioactive Waste Streams Stored in Tanks at Three Department of Energy Sites
Publisher : National Academies Press
Page : 214 pages
File Size : 52,9 Mb
Release : 2006-09-12
Category : Science
ISBN : 9780309180146

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Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites by National Research Council,Division on Earth and Life Studies,Nuclear and Radiation Studies Board,Committee on the Management of Certain Radioactive Waste Streams Stored in Tanks at Three Department of Energy Sites Pdf

DOE Tank Waste: How clean is clean enough? The U.S. Congress asked the National Academies to evaluate the Department of Energy's (DOE's) plans for cleaning up defense-related radioactive wastes stored in underground tanks at three sites: the Hanford Site in Washington State, the Savannah River Site in South Carolina, and the Idaho National Laboratory. DOE plans to remove the waste from the tanks, separate out high-level radioactive waste to be shipped to an off-site geological repository, and dispose of the remaining lower-activity waste onsite. The report concludes that DOE's overall plan is workable, but some important challenges must be overcomeâ€"including the removal of residual waste from some tanks, especially at Hanford and Savannah River. The report recommends that DOE pursue a more risk-informed, consistent, participatory, and transparent for making decisions about how much waste to retrieve from tanks and how much to dispose of onsite. The report offers several other detailed recommendations to improve the technical soundness of DOE's tank cleanup plans.

Alternatives for High-Level Waste Salt Processing at the Savannah River Site

Author : National Research Council,Board on Chemical Sciences and Technology,Board on Radioactive Waste Management,Committee on Cesium Processing Alternatives for High-Level Waste at the Savannah River Site
Publisher : National Academies Press
Page : 154 pages
File Size : 42,9 Mb
Release : 2000-11-30
Category : Science
ISBN : 9780309071949

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Alternatives for High-Level Waste Salt Processing at the Savannah River Site by National Research Council,Board on Chemical Sciences and Technology,Board on Radioactive Waste Management,Committee on Cesium Processing Alternatives for High-Level Waste at the Savannah River Site Pdf

The Second World War introduced the world to nuclear weapons and their consequences. Behind the scene of these nuclear weapons and an aspect of their consequences is radioactive waste. Radioactive waste has varying degrees of harmfulness and poses a problem when it comes to storage and disposal. Radioactive waste is usually kept below ground in varying containers, which depend on how radioactive the waste it. High-level radioactive waste (HLW) can be stored in underground carbon-steel tanks. However, radioactive waste must also be further immobilized to ensure our safety. There are several sites in the United States where high-level radioactive waste (HLW) are stored; including the Savannah River Site (SRS), established in 1950 to produce plutonium and tritium isotopes for defense purposes. In order to further immobilize the radioactive waste at this site an in-tank precipitation (ITP) process is utilized. Through this method, the sludge portion of the tank wastes is being removed and immobilized in borosilicate glass for eventual disposal in a geological repository. As a result, a highly alkaline salt, present in both liquid and solid forms, is produced. The salt contains cesium, strontium, actinides such as plutonium and neptunium, and other radionuclides. But is this the best method? The National Research Council (NRC) has empanelled a committee, at the request of the U.S. Department of Energy (DOE), to provide an independent technical review of alternatives to the discontinued in-tank precipitation (ITP) process for treating the HLW stored in tanks at the SRS. Alternatives for High-Level Waste Salt Processing at the Savannah RIver Site summarizes the finding of the committee which sought to answer 4 questions including: "Was an appropriately comprehensive set of cesium partitioning alternatives identified and are there other alternatives that should be explored?" and "Are there significant barriers to the implementation of any of the preferred alternatives, taking into account their state of development and their ability to be integrated into the existing SRS HLW system?"

Research Needs for High-Level Waste Stored in Tanks and Bins at U.S. Department of Energy Sites

Author : National Research Council,Division on Earth and Life Studies,Board on Radioactive Waste Management,Committee on Long-Term Research Needs for Radioactive High-Level Waste at Department of Energy Sites
Publisher : National Academies Press
Page : 146 pages
File Size : 54,7 Mb
Release : 2001-10-05
Category : Science
ISBN : 9780309075657

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Research Needs for High-Level Waste Stored in Tanks and Bins at U.S. Department of Energy Sites by National Research Council,Division on Earth and Life Studies,Board on Radioactive Waste Management,Committee on Long-Term Research Needs for Radioactive High-Level Waste at Department of Energy Sites Pdf

The United States Department of Energy (DOE) has approximately 400 million liters (100 million gallons) of liquid high-level waste (HLW) stored in underground tanks and approximately 4,000 cubic meters of solid HLW stored in bins. The current DOE estimate of the cost of converting these liquid and solid wastes into stable forms for shipment to a geological repository exceeds $50 billion to be spent over several decades (DOE, 2000). The Committee on Long-Term Research Needs for Radioactive High-Level Waste at Department of Energy Sites was appointed by the National Research Council (NRC) to advise the Environmental Management Science Program (EMSP) on a long-term research agenda addressing the above problems related to HLW stored in tanks and bins at DOE sites.

Savannah River Site Waste Management

Author : Anonim
Publisher : Unknown
Page : 766 pages
File Size : 43,5 Mb
Release : 1995
Category : Environmental impact statements
ISBN : STANFORD:36105017337465

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Savannah River Site Waste Management by Anonim Pdf

Research and Development on a Salt Processing Alternative for High-Level Waste at the Savannah River Site

Author : National Research Council,Division on Earth and Life Studies,Board on Chemical Sciences and Technology,Board on Radioactive Waste Management,Committee on Radionuclide Separation Processes for High-Level Waste at the Savannah River Site
Publisher : National Academies Press
Page : 96 pages
File Size : 40,7 Mb
Release : 2001-09-03
Category : Science
ISBN : 9780309075930

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Research and Development on a Salt Processing Alternative for High-Level Waste at the Savannah River Site by National Research Council,Division on Earth and Life Studies,Board on Chemical Sciences and Technology,Board on Radioactive Waste Management,Committee on Radionuclide Separation Processes for High-Level Waste at the Savannah River Site Pdf

The U.S. Department of Energy (DOE) is nearing a decision on how to process 30 million gallons of high-level radioactive waste salt solutions at the Savannah River Site in South Carolina to remove strontium, actinides, and cesium for immobilization in glass and eventual shipment to a geologic repository. The department is sponsoring research and development (R&D) work on four alternative processes and plans to use the results to make a downselection decision in a June 2001 time frame. The DOE requested that the National Research Council help inform this decision by addressing the following charge: evaluate the adequacy of the criteria that will be used by the department to select from among the candidate processes under consideration; evaluate the progress and results of the research and development work that is being undertaken on these candidate processes; and assess whether the technical uncertainties have been sufficiently resolved to proceed with downsizing the list of candidate processes. Responses to the last two points are provided in this report. Research and Development on a Salt Processing Alternative for High-Level Waste at the Savannah River Site focuses exclusively on the technical issues related to the candidate processes for radionuclide removal from high-level waste salt solutions at SRS. The committee's interim report served as a response to the first point of this charge, and may be read in Appendix B. In that report, the committee found that DOE's proposed criteria are an acceptable basis for selecting among the candidate processes under consideration, but that the criteria should not be implemented in a way that relies on a single numerical "total score."

Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites

Author : National Research Council,Division on Earth and Life Studies,Nuclear and Radiation Studies Board,Committee on the Management of Certain Radioactive Waste Streams Stored in Tanks at Three Department of Energy Sites
Publisher : National Academies Press
Page : 214 pages
File Size : 46,8 Mb
Release : 2006-10-12
Category : Science
ISBN : 9780309101707

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Tank Waste Retrieval, Processing, and On-site Disposal at Three Department of Energy Sites by National Research Council,Division on Earth and Life Studies,Nuclear and Radiation Studies Board,Committee on the Management of Certain Radioactive Waste Streams Stored in Tanks at Three Department of Energy Sites Pdf

DOE Tank Waste: How clean is clean enough? The U.S. Congress asked the National Academies to evaluate the Department of Energy's (DOE's) plans for cleaning up defense-related radioactive wastes stored in underground tanks at three sites: the Hanford Site in Washington State, the Savannah River Site in South Carolina, and the Idaho National Laboratory. DOE plans to remove the waste from the tanks, separate out high-level radioactive waste to be shipped to an off-site geological repository, and dispose of the remaining lower-activity waste onsite. The report concludes that DOE's overall plan is workable, but some important challenges must be overcomeâ€"including the removal of residual waste from some tanks, especially at Hanford and Savannah River. The report recommends that DOE pursue a more risk-informed, consistent, participatory, and transparent for making decisions about how much waste to retrieve from tanks and how much to dispose of onsite. The report offers several other detailed recommendations to improve the technical soundness of DOE's tank cleanup plans.

An End State Methodology for Identifying Technology Needs for Environmental Management, with an Example from the Hanford Site Tanks

Author : National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Technologies for Cleanup of High-Level Waste in Tanks in the DOE Weapons Complex
Publisher : National Academies Press
Page : 105 pages
File Size : 52,9 Mb
Release : 1999-03-16
Category : Science
ISBN : 9780309184311

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An End State Methodology for Identifying Technology Needs for Environmental Management, with an Example from the Hanford Site Tanks by National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Technologies for Cleanup of High-Level Waste in Tanks in the DOE Weapons Complex Pdf

A major issue in the cleanup of this country's nuclear weapons complex is how to dispose of the radioactive waste resulting primarily from the chemical processing operations for the recovery of plutonium and other defense strategic nuclear materials. The wastes are stored in hundreds of large underground tanks at four U.S. Department of Energy (DOE) sites throughout the United States. The tanks contain hundreds of thousands of cubic meters of radioactive and hazardous waste. Most of it is high-level waste (HLW), some of it is transuranic (TRU) or low- level waste (LLW), and essentially all containing significant amounts of chemicals deemed hazardous. Of the 278 tanks involved, about 70 are known or assumed to have leaked some of their contents to the environment. The remediation of the tanks and their contents requires the development of new technologies to enable cleanup and minimize costs while meeting various health, safety, and environmental objectives. While DOE has a process based on stakeholder participation for screening and formulating technology needs, it lacks transparency (in terms of being apparent to all concerned decision makers and other interested parties) and a systematic basis (in terms of identifying end states for the contaminants and developing pathways to these states from the present conditions). An End State Methodology for Identifying Technology Needs for Environmental Management, with an Example from the Hanford Site Tanks describes an approach for identifying technology development needs that is both systematic and transparent to enhance the cleanup and remediation of the tank contents and their sites. The authoring committee believes that the recommended end state based approach can be applied to DOE waste management in general, not just to waste in tanks. The approach is illustrated through an example based on the tanks at the DOE Hanford Site in southeastern Washington state, the location of some 60 percent by volume of the tank waste residues.

Nuclear Waste Cleanup Technologies and Opportunities

Author : Robert Noyes
Publisher : Cambridge University Press
Page : 473 pages
File Size : 40,8 Mb
Release : 2013-01-15
Category : Political Science
ISBN : 9780080946191

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Nuclear Waste Cleanup Technologies and Opportunities by Robert Noyes Pdf

One of the largest, most complicated and expensive environmental problems in the United States is the cleanup of nuclear wastes. The US Department of Energy (DOE) has approximately 4,000 contaminated sites covering tens of thousands of acres and replete with contaminated hazardous or radioactive waste, soil, or structures. In addition to high-level waste, it has more than 250,000 cubic meters of transuranic waste and millions of cubic meters of low-level radio-active waste. In addition, DOE is responsible for thousands of facilities awaiting decontamination, decommissioning, and dismantling. DOE and its predecessors have been involved in the management of radioactive wastes since 1943, when such wastes were first generated in significant quantities as by-products of nuclear weapons production. Waste connected with DOE's nuclear weapons complex has been accumulating as a result of various operations spanning over five decades. The cost estimates for nuclear waste cleanup in the United States have been rapidly rising. It has recently been estimated to be in a range from $200 to $350 billion. Costs could vary considerably based on future philosophies as to whether to isolate certain sites (the ""iron fence"" philosophy), or clean them up to a pristine condition (the ""greenfields"" philosophy). Funding will also be based on Congressional action that may reduce environmental cleanup, based on budget considerations.

Nuclear Waste Cleanup Technologies and Opportunities

Author : Robert Noyes
Publisher : Elsevier
Page : 471 pages
File Size : 53,6 Mb
Release : 1995-12-31
Category : Technology & Engineering
ISBN : 9780815518457

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Nuclear Waste Cleanup Technologies and Opportunities by Robert Noyes Pdf

One of the largest, most complicated and expensive environmental problems in the United States is the cleanup of nuclear wastes. The US Department of Energy (DOE) has approximately 4,000 contaminated sites covering tens of thousands of acres and replete with contaminated hazardous or radioactive waste, soil, or structures. In addition to high-level waste, it has more than 250,000 cubic meters of transuranic waste and millions of cubic meters of low-level radio-active waste. In addition, DOE is responsible for thousands of facilities awaiting decontamination, decommissioning, and dismantling. DOE and its predecessors have been involved in the management of radioactive wastes since 1943, when such wastes were first generated in significant quantities as by-products of nuclear weapons production. Waste connected with DOE's nuclear weapons complex has been accumulating as a result of various operations spanning over five decades. The cost estimates for nuclear waste cleanup in the United States have been rapidly rising. It has recently been estimated to be in a range from $200 to $350 billion. Costs could vary considerably based on future philosophies as to whether to isolate certain sites (the ""iron fence"" philosophy), or clean them up to a pristine condition (the ""greenfields"" philosophy). Funding will also be based on Congressional action that may reduce environmental cleanup, based on budget considerations.