Tritium behavior in soil and mineral rock components used for plant cultivation.
- Resource Type
- Academic Journal
- Authors
- Portuphy MO; Interdisciplnary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan.; Katayama K; Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan. Electronic address: katayama.kazunari.947@m.kyushu-u.ac.jp.; Asao K; School of Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka, 819-0395, Japan.; Takeishi T; School of Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka, 819-0395, Japan.; Akashi K; School of Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka, 819-0395, Japan.
- Source
- Publisher: Pergamon Press Country of Publication: England NLM ID: 9306253 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-9800 (Electronic) Linking ISSN: 09698043 NLM ISO Abbreviation: Appl Radiat Isot Subsets: PubMed not MEDLINE; MEDLINE
- Subject
- Language
- English
Immersion, percolation and tritium release experiments in peat and vermiculite soil samples were performed to analyze their behavior in this widely used medium for plant cultivation. Samples were immersed in tritiated water for 696 h and the isotope exchange capacity evaluated. A vertical flow regime was also considered with analysis for hydraulic conductivity to understand tritium mobility and therefore its availability. Peat soil showed a high tritium retention after percolation, but vermiculite seem to suppress its retention ability. The high moisture and organic content of peat enhanced its isotope exchange capacity. The falling head method was used to numerically evaluate the saturated hydraulic conductivity and outflow flux. Calculated isotope exchange capacity was 4.95×10 -2 mol-T 2 O/g for peat and 3.38×10 -2 mol-T 2 O/g for vermiculite. The tritium release experiment showed significant release of tritiated carbons in peat.
Competing Interests: Declaration of competing interest We, the authors of the manuscript titled “Tritium Behavior in Soil and Mineral Rock Components used for Plant Cultivation” confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial or personal support for this work that could have influenced its outcome.
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