METHOD FOR CLEANING OF SOIL FROM TECHNOGENIC CONTAMINANTS Russian patent published in 2006 - IPC B09C1/00 A01B79/02 G21F9/00 

FIELD: agriculture, in particular, environment protection, more particular, reduction of ¹³⁷Cs level in soil.

SUBSTANCE: method involves growing accumulating plants such as lentils and Jerusalem artichoke on contaminated soil during three vegetation periods; alienating the entire plant biomass from soil at the end of vegetation period; determining soil cleaning extent from formula: Cη=(Ca-Cs/Ca)*100(%), where Cη is extent of cleaning soil; Ca is level of ¹³⁷Cs in soil before planting of said accumulating plants; Cs is level of ¹³⁷Cs in soil after withdrawal of the entire plant biomass from soil at the end of vegetation period.

EFFECT: reduced specific activity of ¹³⁷Cs in soil, increased efficiency in removal of radio nuclides and obtaining of ecologically clean plant products, reduced possibility of external and internal radiation of people.

2 tbl