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A model of ^90Sr distribution in the sea near Daya Bay Nuclear Power Plant in China 被引量:1
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作者 Jingyu WANG Hongwei FANG Guojian HE Lei HUANG 《Frontiers of Environmental Science & Engineering》 SCIE EI CAS CSCD 2014年第6期845-853,共9页
The impact on the environment ofradionuclide release from nuclear power plants has attracted increased attention, especially after the accident at Fukushima Daiichi Nuclear Power Plant in Japan. Based on the mechanism... The impact on the environment ofradionuclide release from nuclear power plants has attracted increased attention, especially after the accident at Fukushima Daiichi Nuclear Power Plant in Japan. Based on the mechanisms of adsorption/desorption at solid/liquid interfaces and a surface micromorphology model of sediments, a theoretical expression of the distribution coefficient Kd is derived. This coefficient has significant effects on the distribution of radionuclide in seawater, suspended sediment and seabed sediment. Kd is then used to simulate ^90Sr transport in the sea near the Daya Bay Nuclear Power Plant. The simulation results are compared with field measurements of tidal level, current velocity, suspended sediment concentration and ^90Sr concentrations in the same period. Overall, the simulated results agree well with the field measured data. Thus, the derived expression for Ka is capable of interpreting realistic adsorption/desorption processes. What's more, conclusion is drawn that about 40% ^90Sr released by Daya Bay Nuclear Power Plant will be adsorbed by suspended sediment and 20% by seabed sediment, only about 40% ^90St will remain in the sea near Daya Bay Nuclear Power Plant in South China Sea. 展开更多
关键词 distribution coefficient daya bay HYDRODYNAMIC sediment transport radionuclide transport
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大亚湾海洋沉积物的人工放射性核素
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作者 林植青 王建林 +4 位作者 郑建禄 吴云华 陈绍勇 周彩芸 陈钧铭 《海洋科学》 CAS CSCD 北大核心 1993年第4期61-64,共4页
对大亚湾核电站邻近海的海洋沉积物中人工放射性核素^(144)Ce,^(103)Ru,~88Rn,^(85)Sr,^(90)Sr,^(134)Cs,^(137)Cs,^(124)Sb,^(54)Mn,^(60)Co进行了调查研究;得到核素的区域变化规律和与沉积物性质的相互关系,以及获得各核素的分配系数(... 对大亚湾核电站邻近海的海洋沉积物中人工放射性核素^(144)Ce,^(103)Ru,~88Rn,^(85)Sr,^(90)Sr,^(134)Cs,^(137)Cs,^(124)Sb,^(54)Mn,^(60)Co进行了调查研究;得到核素的区域变化规律和与沉积物性质的相互关系,以及获得各核素的分配系数(K_d)。 展开更多
关键词 大亚湾 沉积物 人工 放射性核素
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