Radiocesium sorption-desorption processes in lake sediments


Ioannides KG, Mertzimekis TJ, Karamanis DT, Stamoulis KC, Kirikopoulos I. Radiocesium sorption-desorption processes in lake sediments. J. Radioanal. Nucl. Chem. 1996;208:549–557.


The kinetics of radiocesium sorption and desorption by cation solutions and the corresponding radiocesium distribution profiles in sediment cores were investigated. The results have shown that a significant percentage of radiocesium is adsorbed in the sediments during the first 3 d. Radiocesium reaches rapidly (< than 5 d) at a depth which does not exceed 3.5 cm. The desorption of radiocesium was found to depend on cation concentrations. Empirical laws are derived both for cesium adsorption and desorption.