METHOD OF SORPTION CLEANING OF AQUEOUS MEDIA FROM ORGANIC SUBSTANCES AND IONS OF HEAVY METALS Russian patent published in 2019 - IPC C02F1/46 B82Y40/00 

FIELD: electricity.

SUBSTANCE: invention relates to methods for intensifying sorption processes by exposing to external electromagnetic fields, specifically to a method of electrocontrolled sorption of organic contaminants, oil products, pesticides, pesticides, heavy metal salts, nitrates, nitrites, etc. Technical result is achieved by the fact that according to the proposed method of sorption cleaning of aqueous media from organic substances and heavy metal ions, the target solution to be cleaned is passed through a sorption cell containing a filter element with a sorbent charge. Also in the cell there are two isolated electrodes, to which voltage is supplied in range from 5 to 150 V. Sorbents before the sorption process are exposed to surface nanocarbon modification, including: 1) impregnation with a solution of precursor substances – a catalyst for synthesis of carbon nanotubes (CNT); 2) sequential stepwise drying and annealing of impregnated material; 3) gas-phase chemical deposition of CNTs on the prepared sample in a batch reactor.

EFFECT: implementation of the disclosed method enables to provide: a) high efficiency of sorption of nano-modified carbon materials with respect to heavy metal ions and organic impurities; b) increasing degree of interaction of extracted pollutant molecules with sorption-active centers of nanomodified absorbent material due to selection of effective parameters of electromagnetic field acting on extraction process.

1 cl, 4 dwg