BIOCIDAL CONCENTRATE Russian patent published in 2011 - IPC C02F1/50 A01N25/00 B22F9/14 

FIELD: chemistry.

SUBSTANCE: invention relates to technology and means of treating water and more specifically to disinfection of drinking water through saturation with biocidal nanoparticles. The essence of the invention lies in that the concentrate which is meant for further dilution, contains clusters of silver or copper nanoparticles with size of 5-50 nm. Said nanoparticles are obtained through erosion of material of electrodes in a circulating liquid as a result of high-frequency arc discharges while controlling the interelectrode spacing, wherein the nanoparticles form associates with water. The biocidal concentrate is in form of a stable hydrosol in distilled water with concentration of up to 100 mg/l, wherein the formed nanoparticles are heated in the arc discharge medium in interelectrode space of 150-250 mcm, and are then dynamically hardened after falling in water. The interelectrode spacing is dynamically controlled using an electric drive which has a micrometre screw and is connected to a sensor.

EFFECT: improved effectiveness of the biocidal concentrate, as well as broader technological capabilities when using said concentrate.

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