Actions for Radionuclide release from low-level waste in field lysimeters [electronic resource].

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Radionuclide release from low-level waste in field lysimeters [electronic resource].

Published
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1986.
Physical Description
Pages: 13 : digital, PDF file
Additional Creators
United States. Department of Energy. Office of Scientific and Technical Information
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Summary
A field program has been in operation for 8 years at the Savannah River Plant (SRP) to determine the leaching/migration behavior of low-level radioactive waste using lysimeters. The lysimeters are soil-filled caissons containing well characterized wastes, with each lysimeter serving as a model of a shallow land burial trench. Sampling and analysis of percolate water and vegetation from the lysimeters provide a determination of the release rates of the radionuclides from the waste/soil system. Vegetative uptake appears to be a major pathway for migration. Fractional release rates from the waste/soil system are less than 0.01% per year. Waste-to-soil leach rates up to 10% per year have been determined by coring several of the lysimeters. The leaching of solidified wasteforms under unsaturated field conditions has agreed well with static, immersion leaching of the same type waste in the laboratory. However, releases from the waste/soil system in the lysimeter may be greater than predicted based on leaching alone, due to complexation of the radionuclides by other components leached from the wastes to form mobile, anionic species.
Report Numbers
E 1.99:dp-ms-85-160
E 1.99: conf-860905-11
conf-860905-11
dp-ms-85-160
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1986.
"dp-ms-85-160"
" conf-860905-11"
"DE86015686"
International meeting on low, intermediate and high level waste management - decontamination and decommissioning, Niagara Falls, NY, USA, 14 Sep 1986.
Oblath, S B.
Savannah River Lab., Aiken, SC (USA)
Funding Information
AC09-76SR00001
View MARC record | catkey: 14150782