METHOD OF CLEANING SOIL AND ARTIFICIAL SOIL CONTAMINATED WITH AMINO- AND NITRO-AROMATIC COMPOUNDS Russian patent published in 2016 - IPC B09C1/10 A62D3/02 

FIELD: treatment plants.

SUBSTANCE: invention relates to method of cleaning soil and artificial soil. Introduction of reagent and mineral fertilisers into soil and/or ground is carried out with subsequent moistening. Reagent is active ooze from aeration tanks of industrial waste water treatment facilities neutralised of pathogenic microflora. Biocoenosis of active sludge is adapted to amino- and nitro-aromatic compounds. Ooze is introduced in a dry or suspended form in amount of 500-2,000 mg/kg of dry substance of soil and/or ground containing amino- and nitro-aromatic compounds to 1,000 mg/kg. After application of ooze and fertilizers site is ploughed. Soil and/or ground is held for one vegetation period at temperature not below +10 °C with moisture content of soil and/or ground of not less than 65 % and aeration by intermittent tillage.

EFFECT: almost complete decomposition of toxic compounds in one vegetation period and possibility of using resources of waste water.

1 cl, 2 tbl