US 12,227,439 B2
Systems to treat PFAS and other persistent organic compounds and oxidizable matter in aqueous fluids
Karl William Yost, Anacortes, WA (US); and Richard W. Alexander, Lebanon, OR (US)
Assigned to YOST BROTHERS, LLC, Anacortes, WA (US)
Filed by Yost Brothers, LLC, Anacortes, WA (US)
Filed on Mar. 27, 2020, as Appl. No. 16/833,183.
Claims priority of provisional application 62/826,859, filed on Mar. 29, 2019.
Prior Publication US 2020/0399147 A1, Dec. 24, 2020
Int. Cl. C02F 1/467 (2023.01); C02F 101/36 (2006.01)
CPC C02F 1/4672 (2013.01) [C02F 2101/36 (2013.01); C02F 2201/4611 (2013.01); C02F 2201/4618 (2013.01); C02F 2301/022 (2013.01)] 12 Claims
OG exemplary drawing
 
11. A system for treating oxidizable matter, the system comprising:
a conduit configured to receive an aqueous fluid including oxidizable matter;
a cavitation reactor having (i) an inlet in fluid communication with the conduit and configured to receive the aqueous fluid and (ii) an outlet opposite the inlet, the cavitation reactor comprising:
a cavitation nozzle fluidically coupled to the inlet, the cavitation nozzle comprising a shell and a tip disposed within the shell,
wherein the shell has a first cross-sectional dimension, and wherein the tip is fixedly attached to and extends inwardly from an inner surface of the shell, such that the tip defines an orifice having a second cross-sectional dimension smaller than the first cross-sectional dimension,
a cavitation chamber downstream of the cavitation nozzle,
wherein the cavitation chamber has a third cross-sectional dimension larger than the first cross-sectional dimension, and
wherein a difference between the first and third cross-sectional dimensions is configured to cause cavitation bubbles to form within the aqueous fluid flowing from the cavitation nozzle to the cavitation chamber, and
transducers surrounding at least a portion of the cavitation chamber and extending along a length of the cavitation chamber, wherein the transducers are configured to convert electrical energy to acoustic energy and transmit the acoustic energy toward the cavitation chamber;
a first mixer upstream of and fluidically coupled to the cavitation reactor,
wherein the first mixer comprises a channel comprising a curvature and one or more turns;
a second mixer downstream of and fluidically coupled to the cavitation reactor,
wherein the second mixer comprises a channel comprising a curvature and one or more turns; and
an electrochemical oxidation reactor downstream of the first mixer and in fluid communication with the cavitation reactor.