METHOD OF PURIFICATION OF THE SOILS FROM THE HEAVY METALS Russian patent published in 2007 - IPC B09C1/10 

FIELD: mining industry; chemical industry; other industries; methods of the soils purification from the heavy metals.

SUBSTANCE: the invention is pertaining to the field of biogeotechnology and may be used in the communal services for recultivation of the contaminated soils, in the mining industry, in the chemical industry for salvaging of the polluted sludges and settlings. The method provides for growing of the cultural plants-accumulators on the recultivated soils in compliance with the observance of the agrotechnics rules concerning the cultivated crop and with usage of the stimulating substance - the soils deoxidizer, harvesting the parts of the plants- accumulators, in which the heavy metal is accumulated. Additionally grow the plants excreting the acidifiers into the soil, and through the electrodes located in the near-roots area of the plants-accumulators or connected to the plants-accumulators give the positive and-or negative potential from 1 up to 1000 V. The method allows to recultivate the soils in 5-15 time faster. At that the invention allows to raise fertility and the cadaster value of these soils.

EFFECT: the invention ensures recultivation of the soils in 5-15 time faster, the increased fertility and the cadaster value of these soils.

7 cl, 1 dwg, 12 ex