# US 2013/0153515 A1 · Water treatment apparatus and systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153515 A1 - Document ID: US20130153515A1 - Status: Published application - Kind: A1 - Application number: 13/818,285 - Filed: 2010-10-26 - Published: 2013-06-20 - Earliest claimed: 2010-10-26 - Assignees: Empire Technology Development LLC - Inventors: Dong-Keun Kang; Beom-Keum Kwon - Web page: https://patentgrep.com/patent/US20130153515A1 ## CPC - C02F 1/32: with ultraviolet light - C02F 1/325: {Irradiation devices or lamp constructions} - C02F 1/725: {by catalytic oxidation} - C02F 1/727: {using pure oxygen or oxygen rich gas} - C02F 2201/3227: Units with two or more lamps - C02F 2201/324: Lamp cleaning installations, e.g. brushes - C02F 2209/005: Processes using a programmable logic controller [PLC] - C02F 2305/10: Photocatalysts - 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) ## Abstract Apparatus and systems for water treatment, as well as methods for treating water, are provided. An apparatus for water treatment may include one or more reactors configured for water treatment, one or more light sources configured to provide ultraviolet light inside the one or more reactors, a photocatalyst positioned in each of the one or more reactors and configured to receive the ultraviolet light from the one or more light sources, and a pure oxygen source coupled to the one or more reactors and configured to supply pure oxygen to the water. ## Claims ### Claim 1 An apparatus for water treatment comprising: one or more reactors configured for water treatment; one or more light sources configured to provide ultraviolet light inside the one or more reactors; a photocatalyst positioned in each of the one or more reactors and configured to receive the ultraviolet light from the one or more light sources, wherein the photocatalyst at least partially wraps around an outside of the one or more light sources; and a pure oxygen source coupled to the one or more reactors and configured to supply pure oxygen to the water. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein each of the one or more reactors include at least one of: one water inlet port configured to receive water to be treated, or one water outlet port configured to remove treated water which has passed through the one or more reactors. ### Claim 3 (canceled) ### Claim 4 (depends on 1) The apparatus of claim 1 further comprising: one or more water channels associated with the one or more reactors and configured to provide water to or remove water from the one or more reactors. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the one or more light sources are positioned inside the one or more reactors, are positioned along a longitudinal axis of the one or more reactors, or are positioned outside the one or more reactors. ### Claim at position 6 6-7. (canceled) ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the photocatalyst at least partially coats interior surfaces of the one or more reactors or wherein the photocatalyst is configured in the form of particles, plate, sheet, wire or mesh. ### Claim at position 8 9-12. (canceled) ### Claim 13 (depends on 1) The apparatus of claim 1 further comprising: a control device coupled to the pure oxygen source and configured to regulate an amount and/or rate of the pure oxygen supplied to the water, wherein the pure oxygen source is coupled to a water channel positioned upstream of the one or more reactors. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the one or more reactors are made of plastic, glass, ceramic or metal. ### Claim at position 11 15-18. (canceled) ### Claim 19 (depends on 1) The apparatus of claim 1, wherein the one or more reactors are coated with a metallic material to reflect the ultraviolet light from the one or more light sources. ### Claim 20 (canceled) ### Claim 21 (depends on 1) The apparatus of claim 1 further comprising: one or more sleeves configured to prevent contact between the one or more light sources and the water. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the one or more sleeves are made of a material at least partially transparent to ultraviolet light. ### Claim 23 (canceled) ### Claim 24 (depends on 21) The apparatus of claim 21 further comprising: one or more cleaning devices configured to attach to an outside surface of the one or more sleeves and to controllably move along the length of and/or controllably rotate around the one or more sleeves. ### Claim 25 (depends on 1) The apparatus of claim 1 further comprising: a power source connected to the one or more light sources and configured to provide power. ### Claim 26 (canceled) ### Claim 27 A system for water treatment comprising: one or more apparatus for water treatment, wherein the apparatus comprises: one or more reactors configured for water treatment; one or more light sources configured to provide ultraviolet light inside the one or more reactors; a photocatalyst positioned in each of the one or more reactors and configured to receive the ultraviolet light from the one or more light sources; one or more sleeves configured to prevent contact between the one or more light sources and the water; one or more cleaning devices configured to attach to an outside surface of the one or more sleeves and to controllably move along the length of and/or controllably rotate around the one or more sleeves; and a pure oxygen source coupled to the one or more reactors and configured to supply pure oxygen to the water; and an analyzer unit coupled to the one or more apparatus and configured to analyze water from the apparatus. ### Claim 28 (depends on 27) The system of claim 27 further comprising at least one of: at least one water inlet port in the one or more reactors through which water to be treated can be introduced into the one or more reactors; or at least one water outlet port in the one or more reactors configured to remove treated water which has passed through the one or more reactors. ### Claim 29 (canceled) ### Claim 30 (depends on 27) The system of claim 27 further comprising: one or more water conduits associated with the one or more apparatus and configured to provide water to or remove water from the one or more apparatus. ### Claim 31 (depends on 30) The system of claim 30, wherein the one or more water conduits are a tubing, part of a delivery system, or part of a semiconductor plant. ### Claim 32 (depends on 27) The system of claim 27 further comprising: one or more recycle channels configured to recycle treated water which has passed through the water treatment apparatus back to a water conduit positioned upstream of the water treatment apparatus. ### Claim 33 (depends on 27) The system of claim 27 further comprising: a filtration device positioned upstream of the water treatment apparatus. ### Claim 34 (depends on 33) The system of claim 33 further comprising: one or more pumps coupled to the water treatment apparatus and the filtration device to move the water to be treated through the filtration device and the one or more reactors in the water treatment apparatus. ### Claim 35 (depends on 34) The system of claim 34 further comprising: a power source connected to the one or more light sources in the water treatment apparatus and the one or more pumps to provide power. ### Claim 36 (depends on 33) The system of claim 33 further comprising: a buffer chamber positioned between the filtration device and the water treatment apparatus and configured to prevent overflow of water and to maintain a constant volume of water in the system. ### Claim 37 (depends on 34) The system of claim 34 further comprising: a controller configured to control the filtration device, the one or more pumps, and the one or more light sources. ### Claim 38 (depends on 27) The system of claim 27, wherein the one or more water treatment apparatus are connected in series, in parallel, or a combination thereof. ### Claim at position 32 39-40. (canceled) ### Claim 41 (depends on 27) The system of claim 27, wherein the photocatalyst at least partially wraps around an outside of the one or more light sources. ### Claim 42 A method of treating water comprising: subjecting a water sample to treatment in a water treatment apparatus, wherein the water apparatus comprises: one or more reactors configured for treatment of the water sample; one or more light sources configured to provide ultraviolet light inside the one or more reactors; a photocatalyst positioned in each of the one or more reactors and configured to receive the ultraviolet light from the one or more light sources, wherein the photocatalyst at least partially wraps around an outside of the one or more light sources; and a pure oxygen source coupled to the one or more reactors and configured to supply pure oxygen to the water sample; analyzing the water sample that has been treated by the water treatment apparatus to measure a level of contaminants in the treated water sample; providing the treated water sample for other uses if the measured level of contaminants is below a desired threshold; and returning the water sample for further treatment in the water treatment apparatus if the measured level of contaminants is above a desired threshold.