INFLUENCE OF AM-241 MOBILITY BY SODIUM HUMATE

The influence of aqueous solution of sodium humate on the transport of Am-241 from the soil into solution and acceleration of movement throu gh a soil layer has been studied. It was found that under static condi tion the presence of 150 mg sodium humate in 100 ml water accelerates the liberation of Am-241 from soil into the solution. The mobility of Am-241 through a column of soil increased significantly since the conc entration of sodium humate in the entering solution exceeded 100 mg.1( -1). Artificially contaminated podsol soil from Brno site and sodium h umate isolated by alkaline extraction from sediments of North Bohemian (Duchcov) origin have been used for the investigation.