Beishan region in Gansu was the preselected area for China's high-level radioactive waste(HLW) repository. In selecting and evaluating a new dump site, the tritium study is of great significance. The Xinchang-Xian...Beishan region in Gansu was the preselected area for China's high-level radioactive waste(HLW) repository. In selecting and evaluating a new dump site, the tritium study is of great significance. The Xinchang-Xiangyangshan preselected area in the Beishan area was taken as an example. This paper selects typical unit and tries to use the distribution characteristics of tritium in the soil to study the atmospheric precipitation infiltration recharge in this area. The results show: In this region, the spatial variability of the tritium content in surface soil is large; it is feasible to use bound tritium tracer method to study the theory of atmospheric precipitation infiltration recharge; the atmospheric precipitation infiltration has close relationship with the soil particle composition, salt content, mineral composition, water content and organic matter content. These results can provide important basis for developing the atmospheric precipitation infiltration recharge, groundwater numerical simulation, nuclide migration study and so on.展开更多
中国原子能科学研究院有机废液焚烧装置于1986年建成,并于1989年8—9月焚烧处理了1.7 t 含氚(10~8Bq/L)废机油。监测结果表明,这次焚烧排放造成的空气中氚浓度最高值为13.3Bq/m^3,估算结果与监测结果相一致;对周围居民产生的最大个人年...中国原子能科学研究院有机废液焚烧装置于1986年建成,并于1989年8—9月焚烧处理了1.7 t 含氚(10~8Bq/L)废机油。监测结果表明,这次焚烧排放造成的空气中氚浓度最高值为13.3Bq/m^3,估算结果与监测结果相一致;对周围居民产生的最大个人年有效剂量当量为0.32 μSv。展开更多
基金supported by special project on decommission of nuclear facilities and disposal of radioactive wastes(SASTIND No.2 Department No.[2014]305)
文摘Beishan region in Gansu was the preselected area for China's high-level radioactive waste(HLW) repository. In selecting and evaluating a new dump site, the tritium study is of great significance. The Xinchang-Xiangyangshan preselected area in the Beishan area was taken as an example. This paper selects typical unit and tries to use the distribution characteristics of tritium in the soil to study the atmospheric precipitation infiltration recharge in this area. The results show: In this region, the spatial variability of the tritium content in surface soil is large; it is feasible to use bound tritium tracer method to study the theory of atmospheric precipitation infiltration recharge; the atmospheric precipitation infiltration has close relationship with the soil particle composition, salt content, mineral composition, water content and organic matter content. These results can provide important basis for developing the atmospheric precipitation infiltration recharge, groundwater numerical simulation, nuclide migration study and so on.
