METHOD OF EXTRACTING IRON WITH IMPURITIES OF POLYMETALS FROM IRON-CONTAINING BOTTOM WATERS OF SUBAQUATIC DISCHARGE Russian patent published in 2024 - IPC C01G49/00 C22B3/18 C02F3/00 C02F11/02 C02F101/20 

FIELD: various technological processes; chemistry.

SUBSTANCE: invention relates to extraction of iron with admixtures of polymetals from iron-containing bottom waters of subaquatic loading. Method involves reduction of metal cations to a metal state in the presence of reducing agents — autochthonous microorganisms contained in bottom water. Bottom water is passed in flow mode through an incubator tray to extract nanoparticles of reduced metals sorbed by microorganisms; filtration is carried out using a sterilizing filter. Filtered water with non-adsorbed metal nanoparticles is transferred to an additional trapping tray, which is equipped with a magnet.

EFFECT: method consists in efficient and environmentally safe extraction of iron and other metals from above-silt waters from subaquatic discharge zones.

7 cl, 2 dwg, 3 ex