METHOD FOR CLEANING SOILS CONTAMINATED WITH ARSENIC, CADMIUM AND LEAD, USING SVERBIGI EAST Russian patent published in 2021 - IPC B09C1/00 A01B79/02 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. According to the method, a phytoremediant is grown on a contaminated site, after which it is removed and buried. At the same time, a perennial plant is used as a phytoremediant - the eastern sverbigu, which is sown in the second decade of May on contaminated soil with a seeding rate of 100 kg/ha, with row spacing of 30 cm, a seed placement depth of 3 cm, and cultivated until the end of its life cycle - from 8 up to 10 years. Every year, at the end of the flowering phase, starting from the second year of the sverbig's life, its aboveground vegetative mass is mowed and transported to the burial site.

EFFECT: method provides more complete extraction of arsenic and heavy metals compounds due to high ecological stability, biological productivity of eastern sverbig with powerful root system, penetrating into subsoil horizons and possessing high accumulating capacity.

1 cl, 4 tbl