On the problem of deactivation of land areas contaminated with radionuclides

This paper describes a complex of technologies for land deactivation in areas of nuclear accidents, short-term chemical fixation of such dusting areas as well as long-term combined chemical and biological fixation. Short-term fixation is based on application of chemical compositions containing side-products of hydrolysis of cellulose and calcium chloride. Long-term fixation is achieved by application of some plants that are able to intensive growth. These combined covers prevent an expansion of radionuclides into environment. Methods of deactivation include removal of surface layer of soil with following displacement or burial. Effective deactivation is provided by available technics and cheep chemicals.