US 11,708,281 B1
Device for hydroxyl-radical-based water disinfection and purification and method of use
Vladimir Leonidovich Gorobets, Redmond, WA (US); Andrey Makarov, Moscow (RU); George Goldman, Ramat Gan (IL); Nadezhda Gulko, Moscow (RU); and Igor Mikhailovich Piskarev, Moscow (RU)
Assigned to PLASMIUS, INC, Redmond, WA (US)
Filed by PLASMIUS, INC, Redmond, WA (US)
Filed on Dec. 22, 2022, as Appl. No. 18/145,422.
Claims priority of provisional application 63/294,814, filed on Dec. 29, 2021.
Int. Cl. C02F 1/46 (2023.01); C02F 1/00 (2023.01); C02F 1/34 (2023.01)
CPC C02F 1/4608 (2013.01) [C02F 1/001 (2013.01); C02F 1/008 (2013.01); C02F 1/34 (2013.01); C02F 2201/005 (2013.01); C02F 2201/46 (2013.01); C02F 2209/003 (2013.01); C02F 2209/42 (2013.01); C02F 2303/04 (2013.01); C02F 2305/023 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for hydroxyl-radical-based water disinfection, comprising:
an ejector into which water that comprises contaminants enters under a pressure and with a speed and which accelerates the water to a further speed greater than the speed, wherein the accelerated water creates a region of a further pressure at a boundary of flow of the accelerated water and wherein the further pressure is lower than the pressure under which the water enters the ejector,
a reaction chamber comprising a plurality of electrodes which produce a corona discharge upon an application of high voltage nanosecond duration pulses to the electrodes, wherein the corona discharge produces plasma-chemical reaction products comprising hydroxyl radicals upon encountering a water vapor that enters the reaction chamber through a reaction chamber interface to a mixing chamber, wherein a third pressure in the reaction chamber is greater than the further pressure, and wherein the reaction chamber is interfaced to the lower pressure region and the plasma-chemical reaction products enter the accelerated water through the interface to the lower pressure region; and
the mixing chamber interfaced to the ejector, the reaction chamber, and to an outlet, wherein at least a portion of the contaminants encounter at least some of the reaction products in the mixing chamber and the at least some reaction products at least partially oxidize the encountered contaminants, and wherein the water within the mixing chamber forms the water vapor that enters the reaction chamber through the reaction chamber interface, and wherein the water with the oxidized contaminants exits through the outlet.