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[2J19] Tritium Percolation and Release Behavior in Soil and Mineral Rock Components used for Plant Cultivation
Keywords:Tritium, Soil, Tritium release, Tritium percolation, Mass Balance
The proposed deuterium-tritium fusion reactor is predicted to generate a large amount of tritiated water. From a viewpoint of safety, it is important to understand tritium behavior in environment assuming an accidental release of the tritiated water and water vapor. Studies on its behavior in soil is limited and requires further study. Tritium behavior in some soil and mineral rock components for plant cultivation such as peat, dolomite and vermiculite were investigated. Tritium percolation and release experiments were done on soil to estimate tritium trapping along soil depths as well as its release behavior at high temperatures. Two bubblers were used to trap released tritiated gases every 5 mins and at a 25oC interval. Most tritium was released below 200 oC. Vermiculite, known for its high moisture retaining capacity showed significant releases around 700 oC and 800 oC
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