Author: L. F. Cochrun
Publisher:
ISBN:
Category : Reactor fuel reprocessing
Languages : en
Pages : 34
Book Description
Contamination of Zirconium-uranium by Recycling of Scrap
Author: L. F. Cochrun
Publisher:
ISBN:
Category : Reactor fuel reprocessing
Languages : en
Pages : 34
Book Description
Publisher:
ISBN:
Category : Reactor fuel reprocessing
Languages : en
Pages : 34
Book Description
Recovery of Uranium from Uranium-zirconium Fuel Scrap
Author: T. P. Sprague
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 36
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 36
Book Description
Nuclear Science Abstracts
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 934
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 934
Book Description
Uranium: Alloys and compounds. 1936-1958
Author: United States Dept. of Commerce. Office of Technical Services
Publisher:
ISBN:
Category : Uranium
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : Uranium
Languages : en
Pages : 16
Book Description
Recovery of Uranium from Spent Zirconium-based Reactor Fuels in the Oak Ridge Volatility Pilot Plant
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
Recycling Of Uranium- And Plutonium-Contaminated Metals From Decommissioning Of The Hanau Fuel Fabrication Plant
Author: T. Kluth
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Decommissioning of a nuclear facility comprises not only actual dismantling but also, above all, management of the resulting residual materials and waste. Siemens Decommissioning Projects (DP) in Hanau has been involved in this task since 1995 when the decision was taken to decommission and dismantle the Hanau Fuel Fabrication Plant. Due to the decommissioning, large amounts of contaminated steel scrap have to be managed. The contamination of this metal scrap can be found almost exclusively in the form of surface contamination. Various decontamination technologies are involved, as there are blasting and wiping. Often these methods are not sufficient to meet the free release limits. In these cases, SIEMENS has decided to melt the scrap at Siempelkamp's melting plant. The plant is licensed according to the German Radiation Protection Ordinance Section 7 (issue of 20.07.2001). The furnace is a medium frequency induction type with a load capacity of 3.2 t and a throughput of 2 t/h for steel melting. For safety reasons, the furnace is widely operated by remote handling. A highly efficient filter system of cyclone, bag filter and HEPA-filter in two lines retains the dust and aerosol activity from the off-gas system. The slag is solidified at the surface of the melt and gripped before pouring the liquid iron into a chill. Since 1989, in total 15,000 t have been molten in the plant, 2,000 t of them having been contaminated steel scrap from the decommissioning of fuel fabrication plants. Decontamination factors could be achieved between 80 and 100 by the high affinity of the uranium to the slag former. The activity is transferred to the slag up to nearly 100 %. Samples taken from metal, slag and dust are analyzed by gamma measurements of the 186 keV line of U235 and the 1001 keV line of Pa234m for U238. All produced ingots showed a remaining activity less than 1 Bq/g and could be released for industrial reuse.
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Decommissioning of a nuclear facility comprises not only actual dismantling but also, above all, management of the resulting residual materials and waste. Siemens Decommissioning Projects (DP) in Hanau has been involved in this task since 1995 when the decision was taken to decommission and dismantle the Hanau Fuel Fabrication Plant. Due to the decommissioning, large amounts of contaminated steel scrap have to be managed. The contamination of this metal scrap can be found almost exclusively in the form of surface contamination. Various decontamination technologies are involved, as there are blasting and wiping. Often these methods are not sufficient to meet the free release limits. In these cases, SIEMENS has decided to melt the scrap at Siempelkamp's melting plant. The plant is licensed according to the German Radiation Protection Ordinance Section 7 (issue of 20.07.2001). The furnace is a medium frequency induction type with a load capacity of 3.2 t and a throughput of 2 t/h for steel melting. For safety reasons, the furnace is widely operated by remote handling. A highly efficient filter system of cyclone, bag filter and HEPA-filter in two lines retains the dust and aerosol activity from the off-gas system. The slag is solidified at the surface of the melt and gripped before pouring the liquid iron into a chill. Since 1989, in total 15,000 t have been molten in the plant, 2,000 t of them having been contaminated steel scrap from the decommissioning of fuel fabrication plants. Decontamination factors could be achieved between 80 and 100 by the high affinity of the uranium to the slag former. The activity is transferred to the slag up to nearly 100 %. Samples taken from metal, slag and dust are analyzed by gamma measurements of the 186 keV line of U235 and the 1001 keV line of Pa234m for U238. All produced ingots showed a remaining activity less than 1 Bq/g and could be released for industrial reuse.
U.S. Government Research Reports
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 448
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 448
Book Description
Recovery of Uranium from Uranium-zirconium Fuel Scrap
Author: T. P. Sprague
Publisher:
ISBN:
Category : Reactor fuel reprocessing
Languages : en
Pages : 31
Book Description
Publisher:
ISBN:
Category : Reactor fuel reprocessing
Languages : en
Pages : 31
Book Description
An Evaluation of Four Processes for Recovering Uranium from Zirconium Fuels at the Idaho Chemical Processing Plant
Author: P. Burn
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 62
Book Description
Publisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 62
Book Description
List
Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 564
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 564
Book Description