JPWO2021025991A5 - - Google Patents

Claims (21)

actinic radiation reactor,
Water treatment comprising: an electrochemical cell configured to produce hydrogen peroxide and having an outlet in fluid communication between an electrolyte source and an actinic radiation reactor; and an oxygen source in communication with the electrochemical cell inlet. system. a first conduit fluidly coupling the electrolyte source to the inlet of the electrochemical cell; and
2. The system of claim 1, further comprising a second conduit fluidly coupling the outlet of the electrochemical cell and the inlet of the actinic radiation reactor. 2. The system of claim 1, wherein the outlet of the electrochemical cell is fluidly coupled to an entry point of a conduit that fluidly couples the electrolyte source to the inlet of the electrochemical cell. 2. The system of claim 1, wherein said actinic radiation reactor is an ultraviolet-enhanced oxidation process reactor. 2. The system of claim 1, wherein the electrolyte comprises water. 3. The system of claim 1, further comprising a storage tank coupled to the outlet of the electrochemical cell. a conduit fluidly coupled to the outlet of the actinic radiation reactor; and
A second electrochemical cell having an outlet in fluid communication with the conduit downstream of the outlet of the actinic radiation reactor, the chemical agent for quenching hydrogen peroxide present in the aqueous treatment solution within the conduit. 2. The system of claim 1, further comprising said second electrochemical cell configured to generate a . 8. The system of claim 7, further comprising a storage tank coupled to the outlet of said second electrochemical cell. 8. The system of Claim 7, wherein the chemical agent comprises sodium hypochlorite. 8. The system of claim 7, wherein said conduit fluidly connects said outlet of said actinic radiation reactor to an inlet of said second electrochemical cell. 8. The system of claim 7, wherein said outlet of said second electrochemical cell is fluidly coupled to an introduction point of said conduit downstream of said outlet of said actinic radiation reactor. Further comprising a sensor configured to measure the concentration of one or more contaminants in an aqueous solution, said sensor positioned either upstream of said actinic radiation reactor or downstream of said actinic radiation reactor. 12. The system of any of claims 1-11, wherein the system is 13. The method of claim 12, further comprising a controller in communication with the sensor and configured to adjust one or more operating parameters of the system in response to the measured concentration of the one or more contaminants. system. The one or more operating parameters include power applied to the electrochemical cell, power applied to the second electrochemical cell, power applied to the actinic radiation reactor, and power applied to the electrochemical cell, the second or flow of an electrolyte or aqueous solution through one of said actinic radiation reactors. 14. The system of claim 13, wherein the oxygen source is configured to introduce the oxygen to the electrolyte upstream of the electrochemical cell. 16. The system of Claim 15, wherein the controller is further configured to adjust the introduction rate of the oxygen to the electrolyte in response to the measured concentration of the one or more contaminants. actinic radiation from the storage tank based on one or more measured characteristics of the electrolyte from the electrolyte source or one or more measured characteristics of the aqueous treatment solution produced in the actinic radiation reactor; 7. The system of Claim 6, further comprising a controller configured to regulate the flow rate of hydrogen peroxide to the radiative reactor. actinic radiation from the storage tank based on one or more measured characteristics of the electrolyte from the electrolyte source or one or more measured characteristics of the process aqueous solution produced in the actinic radiation reactor; 9. The system of claim 8, further comprising a controller configured to regulate a flow rate of sodium hypochlorite into the conduit downstream of the outlet of the radiative reactor. 12. The system of any of claims 1-11, further comprising a sensor downstream of the actinic radiation reactor configured to measure the concentration of hydrogen peroxide in the aqueous treatment solution. 20. The system of Claim 19, further comprising a controller in communication with said sensor and configured to adjust one or more operating parameters of said second electrochemical cell based on said measured concentration of hydrogen peroxide. . The one or more operating parameters of the second electrochemical cell are electrical power applied to the second electrochemical cell, electrolyte flow rate to the second electrochemical cell, 21. The system of claim 20, comprising one or more of a flow rate of sodium hypochlorite from, or a concentration of sodium hypochlorite produced in the second electrochemical cell.