Radiocesium in ponds in the near zone of Fukushima Dai-ichi NPP
Radiocesium in ponds in the near zone of Fukushima Dai-ichi NPP
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福岛第一核电站附近区域池塘中的放射性铯
DOI：
10.1134/s0097807818040139
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发表时间：
2018
期刊：
影响因子：
1
通讯作者：
T.
中科院分区：
文献类型：
--
作者：
Konoplev;A.V.;Wakiyama;Y.;Wada;T.;Golosov;V.N.;Nanba;K.;Takase;T.
本文介绍了2011年事故后福岛第一核电站近区水池中放射性铯浓度及其在溶解态和颗粒态之间分布的研究结果。池塘水中~（137）Cs的总浓度及其变化很大程度上受颗粒物浓度的控制，颗粒物浓度高达68 Bq/L，而溶液中的浓度仅为5 Bq/L。池塘中的分布系数Kd值与福岛第一核电站意外污染区的河流和大型流通湖泊中的分布系数Kd值相似。的贡献的主要竞争离子K+和NH 4+从固体颗粒到溶液中的放射性铯解吸的池塘是相似的，但是，溶解的放射性铯浓度的相对影响随着时间的推移而变化，因为铵浓度的变化。
The article presents the results of studying radiocesium concentration and distribution between dissolved and particulate forms in ponds in the near zone of Fukushima Dai-ichi NPP NPP after the 2011 accident. The total concentration of137Cs in pond water and its variations are shown to be largely governed by the concentration of particulate matter being as high as 68 Bq/L, compared with 5 Bq/L in solution. The values of the distribution coefficientKdin the ponds are similar to those in rivers and in large flow-through lakes in the accidentally polluted zone at Fukushima Dai-ichi NPP. The contributions of the main competing ions K+and NH4+to radiocesium desorption from solid particles into solution were similar for the ponds; however, their relative effect on dissolved radiocesium concentration varied over time because of variations in ammonium concentration.