# US 10,308,534 B2 · Personal advanced oxidation water treatment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,534 B2 - Document ID: US10308534B2 - Status: Granted - Kind: B2 - Application number: 15/490,500 - Filed: 2017-04-18 - Published: 2017-11-09 - Granted: 2019-06-04 - Earliest claimed: 2011-05-20 - Applicants: Michael J. Fleck; John A. Pidgeon - Inventors: Michael J. Fleck; John A. Pidgeon - Web page: https://patentgrep.com/patent/US10308534B2 ## CPC - C02F 1/78: with ozone {(C02F1/4672 takes precedence)} - B01J 21/063: {Titanium; Oxides or hydroxides thereof} - B01J 35/39: Photocatalytic properties - C01B 13/11: by electric discharge - C02F 1/002: {using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear (C02F1/003 takes precedence)} - C02F 1/725: {by catalytic oxidation} - C01B 2201/62: Air - C02F 2201/002: Construction details of the apparatus - C02F 2201/008: Mobile apparatus and plants, e.g. mounted on a vehicle - C02F 2201/009: Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells - C02F 2201/782: Ozone generators - C02F 2303/04: Disinfection - C02F 2305/023: Reactive oxygen species, singlet oxygen, OH radical - Y02A 20/208: Off-grid powered water treatment - Y02A 20/211: Solar-powered water purification - Y02A 20/212: Solar-powered wastewater sewage treatment, e.g. spray evaporation - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C} - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## Abstract A portable, personal advanced-oxidation water treatment system based on ozone and a catalyst such as titanium dioxide that can cycle and purify water to make it potable by removing organic contaminants. The unit can be used for long periods of time without having to replenish the active portions. The unit can be carried in a backpack or in a vehicle. Fresh water is typically loaded into the unit, and the unit is cycled until the water is pure enough to drink. A battery is used to produce ozone and to cycle the water through a reaction vessel and can optionally be charged with a small solar panel The unit can also be powered directly from a vehicle. ## Claims ### Claim 1 A backpack worn, portable water purification system designed so that a single user can purify a quantity of water by putting into a tank, charging it with ozone gas and re-circulating it through a reaction chamber until potable, the system comprising: a backpack sized to be worn by a user; the water tank, a pump, a venturi and the reaction vessel all contained in the backpack, the water tank fluidly connected through the venturi to the reaction vessel; the reaction vessel fluidly connected back to the tank; an ozone generator also contained in the backpack producing ozone gas, the ozone generator being gas-connected to the venturi so that ozone gas transfers into the water though the venturi; the reaction vessel containing a reacting surface coated with titanium dioxide; the pump continuously recirculating water from the water tank into the reaction vessel and back to the water tank; a drain on the water tank constructed to allow a user to remove potable water from the water tank. ### Claim 2 (depends on 1) The portable water purification system of claim 1 further comprising a battery powering at least the ozone generator and the pump. ### Claim 3 The portable water purification system of claim further comprising a solar panel to recharge the battery. ### Claim 4 (depends on 1) The portable water purification system of claim 1 wherein the titanium dioxide in contained in a high-surface area matrix. ### Claim 5 (depends on 1) The portable water purification system of claim 1 further comprising a filler apparatus attached to the water tank that can optionally contain a sediment filter. ### Claim 6 (depends on 1) The portable water purification system of claim 1 further comprising a filler apparatus attached to the water tank that contains a sediment filter. ### Claim 7 (depends on 6) The portable water purification system of claim 6 wherein the sediment filter is a fine screen. ### Claim 8 (depends on 1) The portable water purification system of claim 1 wherein the ozone generator includes a corona discharge device. ### Claim 9 (depends on 1) The portable water purification system of claim 1 wherein the ozone generator is an ultra-violet lamp. ### Claim 10 (depends on 1) The portable water purification system of claim 1 further comprising one or more sediment traps in the bottom of the water tank or the reaction vessel. ### Claim 11 A backpack worn, portable water purification system designed so that a single user can purify a quantity of water by putting into a tank, charging it with ozone gas and re-circulating it through a reaction chamber until potable, the system comprising: a backpack sized to be worn by a user; the water tank, a pump, a venturi and the reaction vessel all contained in the backpack, the water tank fluidly connected through the venturi to the reaction vessel; the reaction vessel fluidly connected back to the tank; an ozone generator also contained in the backpack producing ozone gas, the ozone generator being gas-connected to the venturi so that ozone gas transfers into the water though the venturi; the reaction vessel containing a reacting surface coated with a catalyst; the pump continuously recirculating water from the water tank into the reaction vessel and back to the water tank. ### Claim 12 (depends on 11) The portable water purification system of claim 11 wherein the catalyst is titanium dioxide. ### Claim 13 (depends on 11) The portable water purification system of claim 11 further comprising a drain on the water tank constructed to allow a user to remove potable water from the water tank. ### Claim 14 (depends on 11) The portable water purification system of claim 11 further comprising a battery contained in the backpack powering at least the ozone generator and the pump. ### Claim 15 (depends on 14) The portable water purification system of claim 14 further comprising a solar panel attached to the backpack to recharge the battery. ### Claim 16 A backpack worn, portable water purification system designed so that a single user can purify a quantity of water by putting into a tank, charging it with ozone gas and re-circulating it through a reaction chamber until potable, the system comprising: a backpack sized to be worn by a user; the water tank, a pump, and the reaction vessel all contained in the backpack, the water tank fluidly to the reaction vessel; the reaction vessel fluidly connected back to the tank; an ozone generator also contained in the backpack producing ozone gas, the ozone generator being gas-connected reaction chamber so that ozone gas transfers into the water in the reaction chamber; the reaction vessel containing a reacting surface coated with a catalyst; the pump continuously recirculating water from the water tank into the reaction vessel and back to the water tank. ### Claim 17 (depends on 16) The portable water purification system of claim 16 wherein the catalyst is titanium dioxide. ### Claim 18 (depends on 16) The portable water purification system of claim 16 further comprising a battery contained in the backpack powering at least the ozone generator and the pump. ### Claim 19 (depends on 18) The portable water purification system of claim 18 further comprising a solar panel to recharge the battery.