Long-term kinetics of radiocesium fixation by soils

被引：0

作者：

Konoplev, A ^{[1
]}

Bulgakov, A ^{[1
]}

Hilton, J ^{[1
]}

Comans, R ^{[1
]}

Popov, V ^{[1
]}

机构：

[1] SPA Typhoon, Inst Expt Meteorol, Obninsk 249020, Kaluga Region, Russia

来源：

FRESHWATER AND ESTUARINE RADIOECOLOGY | 1997年 / 68卷

关键词：

D O I：

暂无

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Results of a one-year laboratory experiment on the kinetics of Cs-137 fixation on mineral (MS) and organic (OS1 and OS2) soils are presented. The soils were collected from different areas contaminated after the Chernobyl accident (Ukraine, Russia, UK). Three phases of fixation are identified: rapid sorption on highly selective sites, redistribution from non-selective to highly selective sites and solid-state diffusion of Cs-137 into mineral particles. A model of cesium distribution processes is proposed and parameter values are evaluated. For modelling short term transport processes the use of an exchangeable Cs-137 distribution coefficient is recommended.

引用

页码：173 / 182

页数：10