@article{oai:repo.qst.go.jp:00047703,
 author = {枝尾, 祐希 and 岩井, 保則 and 佐藤, 克美 and 林, 巧 and 枝尾 祐希 and 岩井 保則 and 佐藤 克美 and 林 巧},
 journal = {Applied Radiation and Isotopes},
 month = {Aug},
 note = {A passive reactor for tritium oxidation at room temperature has been widely studied in nuclear engineering especially for a detritiation system (DS) of a tritium process facility taking possible extraordinary situation severely into consideration. We have focused on bacterial oxidation of tritium by hydrogen-oxidizing bacteria in natural soil to realize the passive oxidation reactor. The purpose of this study was to examine the feasibility of a bioreactor with hydrogen-oxidizing bacteria in soil from a point of view of engineering. The efficiency of the bioreactor was evaluated by kinetics. The bioreactor packed with natural soil shows a relative high conversion rate of tritium under the saturated moisture condition at room temperature, which is obviously superior to that of a Pt/Al2O3 catalyst generally used for tritium oxidation in the existing tritium handling facilities. The order of reaction for tritium oxidation with soil was the pseudo-first order as assessed with Michaelis-Menten kinetics model. Our engineering suggestion to increase the reaction rate is the intentional addition of hydrogen at a small concentration in the feed gas on condition that the oxidation of tritium with soil is expressed by the Michaelis-Menten kinetics model.},
 pages = {40--44},
 title = {Experimental investigation on feasible bioreactor using mechanism of hydrogen oxidation of natural soil for detritiation system},
 volume = {114},
 year = {2016}
}