Melioration of the radiocesium contaminated land
Abstract
A method is described of radiocesium fixation in soils contaminated by this radionuclide. To immobilize radiocesium, the soil surface is treated with aqueous hexacyanoferrate solution of alkaline metals. It has been experimentally shown that application of K4 [Fe(CN)6]3H2O at a rate of 1,3g/kg soil reduces the fraction of exchangeable 137Cs 100-fold (100 times). The method is effective for the plots where contamination is concentrated in the top 1 - 2 cm soil layer.
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