DEVELOPMENT OF TRITIUM GAS ELIMINATING SYSTEM BY IMMOBILIZED BACTERIA

固定化细菌脱氚气系统的研制

• 批准号: 04558027
• 负责人: ICHIMASA Michiko
• 金额: $ 1.02万
• 依托单位: IBARAKI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04558027/
• 关键词: Tritium; Tritium gas; Biological oxidation; Hydrogen-oxidizing bacteria; Immobilized bacteria; トリチウムガス除去; 微生物

In this study we investigated the possibility and development of elimination system of tritium gas by immobilized tritium gas-oxidizing bacteria as a catalyst. Among various hydrogen (tritium gas) -oxidizing bacterial strains tested, an actinomycetes with highest oxidation activity was chosen and culture conditions to make immobilized cells were examined. Tritium gas oxidizing activity in immobilized cells with fiberm was kept for a long time at low temparature and the oxidation activity of immobilized cells was recovered after washing and recultivation. Tritium gas elimination system consisted of a column packed with immobilized cells, -60ﾟC cold trap, molecular sieves and silica gel traps, and a tritium monitor.

本研究探讨了固定化氚气氧化菌作为催化剂消除氚气的可能性及其发展趋势。在各种氢（氚气）氧化细菌菌株测试，选择具有最高氧化活性的放线菌和培养条件，使固定化细胞进行了检查。纤维素固定化细胞在低温下能保持较长时间的氚气氧化活性，经洗涤、再培养后，固定化细胞的氚气氧化活性可恢复。除氚系统由固定化细胞柱、-60 ℃冷阱、分子筛和硅胶阱及氚监测器组成。