Influence of241Am mobility by sodium humate

The influence of aqueous solution of sodium humate on the transport of²⁴¹Am from the soil into solution and acceleration of movement through a soil layer has been studied. It was found that under static condition the presence of 150 mg sodium humate in 100 ml water accelerates the liberation of²⁴¹Am from soil into the solution. The mobility of²⁴¹Am through a column of soil increased significantly since the concentration of sodium humate in the entering solution exceeded 100 mg.1^–1. Artificially contaminated podsol soil from Brno site and sodium humate isolated by alkaline extraction from sediments of North Bohemian (Duchcov) origin have been used for the investigation.