摘要
土壤可吸收大气中氢及核反应中的氚气,通过微生物作用将氢气和氚气氧化。本文综述了氢和氚在土壤环境中的迁移转化,与氢及氚氧化相关的微生物类型、分布及群落特征,探讨了氢化酶等生物氧化机理,及影响土壤中氚生物氧化的因素。研究表明,土壤微生物群落特征对氚的生物氧化具有重要影响,是放射性氚在环境中迁移转化及其生态效应的一个重要影响因素。
Soil is main source to absorb atmospheric hydrogen, and tritium released from nuclear reactors, through the oxidation of hydrogen and tritium gas by soil microorganisms. In this paper, hydrogen and tritium migration and transformation in the environment, microbial species, distribution and microbial community associated with tritium oxide was reviewed. Hydrogenase, the mechanism of biological oxidation of tritium, and factors affecting tritium oxidation in soil, were discussed. Studies show that tritium oxidation was affected by the soil microbial community, and this is an important factor in site selection of nuclear power plants.
出处
《核技术》
CAS
CSCD
北大核心
2011年第2期143-146,共4页
Nuclear Techniques
基金
国家自然科学基金(10775174)
上海自然基金(3109ZR1438200)
上海市基金重点(10JC147200)项目
