Published September 2003 | Version v1
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Advective-diffusive transport of D2O in unsaturated media under evaporation condition

Creators

  • 1. Japan Nuclear Cycle Development Institute, Tokai Works, Radiation Protection Division, Tokai, Ibaraki (Japan)
  • 2. Japan Atomic Energy Research Institute, Tokai Research Establishment, Department of Enviromental Sciences, Tokai, Ibaraki (Japan)
  • 3. Nagoya University, Department of Nuclear Engineering, Nagoya, Aichi (Japan)

Description

Advective-diffusive transport of HTO in unsaturated media was investigated empirically using deuterated water (D2O) and columns filled with glass beads. The tortuosity factor was evaluated by numerical model calculations corresponding to first experiment for diffusion under no-evaporation condition. Temporal variations in depth profiles of D2O concentrations in the columns were observed by second experiment, which considers the transferring and spreading of D2O by pore-water flow caused by evaporation. Measurements and model calculations indicated that diffusion was about two times more efficient than dispersion for D2O spreading process under this evaporation condition. (author)

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Part of:
Proceedings of the international symposium: Transfer of radionuclides in biosphere. Prediction and assessment

Additional details

Publishing Information

Imprint Title
Proceedings of the international symposium: Transfer of radionuclides in biosphere. Prediction and assessment
Imprint Pagination
408 p.
Journal Page Range
p. 213-220
Report number
JAERI-Conf--2003-010

Conference

Title
Transfer of radionuclides in biosphere. Prediction and assessment
Acronym
International symposium
Dates
18-19 Dec 2002
Place
Mito, Ibaraki (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
36116266
Subject category
S54: ENVIRONMENTAL SCIENCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ADVECTION; CONTAMINATION; DIFFUSION; EARTH ATMOSPHERE; EVAPORATION; EXTRACTION COLUMNS; HEAVY WATER; SOILS; TRANSPORT; TRITIUM OXIDES
Descriptors DEC
CHALCOGENIDES; DEUTERIUM COMPOUNDS; EQUIPMENT; EXTRACTION APPARATUSES; HYDROGEN COMPOUNDS; MASS TRANSFER; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SEPARATION EQUIPMENT; TRITIUM COMPOUNDS; WATER

Optional Information

Notes
15 refs., 5 figs.; This record replaces 35028263