Radionuclide distributions and migration mechanisms at shallow land burial sites

Final report of PNL research investigations on the distribution, migration, ... of radionuclides at Maxey Flats, Kentucky
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Supt. of Docs., U.S. G.P.O., [distributor
Radioactive waste disposal in the ground, Ken
The Physical Object
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Open LibraryOL10109015M
ISBN 100160305772
ISBN 139780160305771

Kirby, L J. Radionuclide distributions and migration mechanisms at shallow land burial sites. Annual report of research investigations on the distribution, migration and containment of radionuclides at Maxey Flats, Kentucky.

[Maxey Flats]. United States: N. p., Kirby, L J. Radionuclide distributions and migration mechanisms at shallow land burial sites. annual report of research investigations on the distribution, migration and containment of radionuclides at Maxey Flats, Kentucky.

United States: N. p., Web. doi/ Radionuclide migration from the Savannah River Plant low-level waste burial ground was studied in ongoing programs that provide generic data on a shallow land burial site in a humid region and support local waste disposal operations.

Field, laboratory, and theoretical work continued in four areas. INTERNATIONAL ATOMIC ENERGY AGENCY, Migration and Biological Transfer of Radionuclides from Shallow Land Burial (Final Report of a Co-ordinated Research Programme Sponsored by the IAEA, ), IAEA-TECDOC, IAEA, Vienna ().

Download to:. Migration and Dispersion of Radioactive Waste from Shallow Land Burial. the purpose of sealing is the securing of long term safety for the repository to prevent the radionuclide migration. to irradiation as a result of the migration of radionuclides from a shallow land repository due to his consumption of contaminated drinking water and foodstuffs.

(The possibility als o exists of exposure due to inadvertent intrusion into a shallow burial site if no institutional controls are maintained). Data on the transfer of nuclides from rising.

We will review the status of knowledge regarding the distributions of radionuclides at the site and their relationship to historic information such as disposal records.

We will also discuss the mechanisms of radionuclide migration and the tendency of each radionuclide to be transported by particular pathways.

Site description. Radionuclide transport modelling (Modflow – MT3D) for the waste site, accounting for dissolution of fuel particles inside the trench, radionuclide migration in the unsaturated zone, and radionuclide migration in the aquifer, has given an ‘effective’ (i.e., fitted time-averaged for the period –) K d value of L/kg (Dewière et.

dering four vaults for the burial of radionuclides are in- stalled in the site. Concerning the analysis of the two modes, two dis- tances 10 and m are selected to be the checked dis- tance around the disposal site for the calculation of mi- gration rate of radionuclides within the restricted area ( m).

Restricted area, defined by the. Our laboratory is investigating the subsurface migration of radionuclides in groundwater at the Maxey Flats, Kentucky, shallow land burial site and at a low-level aqueous waste disposal facility. At Maxey Flats, radionuclide and tracer data indicate groundwater communication between a waste trench and an adjacent experimental study area.

Areal distributions of radionuclides in surface soil. Radionuclide migration from a large catchment often tends to reflect an integrated average response based on the “ensemble” of physiographic, climatic and land use types that it comprises.

“Statistical aggregation” of processes is one approach that may be further developed to model radionuclide migration in large, complex systems. >From through a cooperative study project on the migration of radionuclides in shallow land was carried out by CIRP and JAERI, which covers field test, laboratory simulation test, other laboratory studies and related model development.

The radionuclides studied involve 90Sr, Np, Pu. For comparison the nonradioactive elements Sr, Nd and Ce were also studied. Recent work on the helium distribution in the aquifers of the Paris Basin confirms the importance of molecular diffusion for solute transport in clays.

Migration in aquifers is also described, and the major causes of uncertainties for solute migration are discussed. To cite this article: G.

de Marsily et al., C. Physique 3 () – Abstract. The Maxey Flats research program is a multidisciplinary, multilaboratory program with the objectives to define the radiochemical and chemical composition of leachates in the burial trenches, define the areal distribution of radionuclides on the site and the factors responsible for this distribution, define the concentrations of radionuclides in vegetation both on and offsite and the.

Nuclear energy is the one energy source that could meet the world's growing energy needs and provide a smooth transition from fossil fuels to renewable energy in the coming decades and centuries.

It is becoming abundantly clear that an increase in nuclear energy capacity will, and probably must, take place. However, nuclear energy and the use of radionuclides for civilian and military. Radiological Impact of Shallow Land Burial: Sensitivity to Site Characteristics and Engineered Features of Burial Facilities (NUCLEAR SCIENCE AND TECHNOLOGY (EUROPEAN COMM INFO SERV)) [Pinner, A.

V., Maple, J. P.] on *FREE* shipping on qualifying offers. Radiological Impact of Shallow Land Burial: Sensitivity to Site Characteristics and Engineered Features of Burial. Radionuclide dispersion from a waste burial in the geosphere 90Sr releases from the shallow trench at Chernobyl NPP site containing nuclear fuel particles and subsequent radionuclide transport.

Risk assessment for shallow land burial of low level. Written By: rufi on No Comment. Radiological Impact of Shallow Land Burial Sensitivity to. Hydrogeologic factors in the selection of shallow land burial sites for the disposal of low-level radioactive waste. (U.S.

Download Radionuclide distributions and migration mechanisms at shallow land burial sites PDF

Geological Survey circular; ) Diagram showing volumetric distribution of low-level radioactive waste, by site, through mechanism for LLW migration. U. Bagampadde, B.M. Kiggundu, in Proceedings from the International Conference on Advances in Engineering and Technology, Road Section Sampling and Coring.

Two randomly selected sections of the road were used for investigation namely, one located in an area with a shallow water table and another in an area with a deep water table. The road studied had seven sections of.

This book provides extensive and comprehensive information to researchers and academicians who are interested in radionuclide contamination, its sources and environmental impact.

It is also useful for graduate and undergraduate students specializing in radioactive-waste disposal and its impact on.

Details Radionuclide distributions and migration mechanisms at shallow land burial sites FB2

The subsurface migration of radionuclides has been studied at a commercial, shallow-land burial site of low-level nuclear waste at Maxey Flats, Kentucky. A variety of radionuclides including /sup 3/H, /sup ,/Pu, /sup 60/Co, /sup /Cs and /sup 90/Sr have migrated short distances on-site (meters to tens of meters).

2) Confirmation of distribution and investigation on migration in radionuclide forests 3) Study on radionuclide migration due to soil erosion under different land use 4) Measurement of radionuclides entrained from natural environment including forests and soils.

Low-level waste (LLW) short-lived radioactivity suitable for shallow land burial 7.

Description Radionuclide distributions and migration mechanisms at shallow land burial sites PDF

Low-level waste (LLW) Low-level waste storage pit at the Nevada National Security Site. Intermediate-level waste (ILW) Contains higher amounts of radioactivity and some requires shielding. Resins Chemical sludges Metal fuel cladding. Get this from a library. General investigation of radionuclide retention in migration pathways at the West Valley, New York, low-level burial site: final report, October February [R H Dana; V S Ragan; S A Molello; H H Bailey; R H Fickies; C G; R H Fakundiny; V C Hoffman; U.S.

Nuclear Regulatory Commission. Division of Safeguards, Fuel Cycle, and Environmental Research. We take the flatland tailings pond of the Sanshan Island gold mine, Shangdong Province, China, shown in an covers an area of about km 2, a catchment area of about km ground level is about – m and the reservoir elevation is about – m.

The starter dam consists of roller compacted sand with a height of m, top width of m, and outer. Assessment of the Potential for Raclionuclicle Migration from a Nuclear Explosion Cavity 11 INTRODUCTION DARLEANE C.

HOFFMAN and WILLIAM R. DANIELS Los Alamos National Laboratory A field study of the distribution of radionuclides around an underground nuclear explosion cavity was initiated inabout 9 yr after detonation of the nuclear test.

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit to get more information about this book, to buy it in print, or to download it as a free PDF.

The radionuclide distribution (Fig. 3B) confirms their vertical migration in mostly soluble forms, likely resulting from a faster destruction of the fuel particles under these soil conditions.

The experimental data on the radionuclide distribution in the soil profiles of the. land, shallow quiet marine bays, or in deep submarine settings. Source rocks are comprised of very small mineral fragments. In between the mineral fragments, are the remains of organic material, usually algae, small wood fragments, or pieces of the soft parts of land plants (Figure 2).

When these fine-grained sediments are buried by. The migration of radionuclides from a borehole repository located about 20 km from the Akwapim fault line which lies in an area of high seismicity was analyzed for some selected radionuclides.

In the event of a seismic activity, fractures and faults could be rejuvenated or initiated resulting in container failure leading to the release of.It was found that the spatial features of the specific activities distributions of plutonium and strontium in groundwater were similar, i.e., there was a correlation between the positions of the radionuclides activity maximums.

The Pu isotopes' plume in the aquifer spreads about 10 m downstream of the radionuclides .This study was performed to determine the distributions of radionuclides ( U, Th and 40 K naturally occurring in Khrami Late Variscan crystal massif and soils overlapping its adjacent territory built by Neogene and Quaternary lava using a gamma-ray spectrometry with an HPGe identification of artificial radionuclide Cs concentration revealed the character of radioactive.