# US 2017/0283276 A9 · Liquid processing system and control method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0283276 A9 - Document ID: US20170283276A9 - Status: Published application - Kind: A9 - Application number: 15/202,150 - Filed: 2016-07-05 - Published: 2017-10-05 - Earliest claimed: 2012-03-16 - Assignees: Kabushiki Kaisha Toshiba - Applicants: Kabushiki Kaisha Toshiba - Inventors: NORIMITSU ABE; TAKESHI IDE; SHINJI KOBAYASHI; AKIHIKO SHIROTA; KENJI TAKEUCHI - Web page: https://patentgrep.com/patent/US20170283276A9 ## CPC - C02F 1/008: {Control or steering systems not provided for elsewhere in subclass C02F} - B01J 19/12: employing electromagnetic waves - B01J 19/123: {Ultraviolet light} - C02F 1/325: {Irradiation devices or lamp constructions} - C02F 1/685: {Devices for dosing the additives} - C02F 1/76: with halogens or compounds of halogens {(C02F1/4674 takes precedence)} - B01J 2219/0801: Controlling the process - B01J 2219/0877: Liquid - C02F 2201/3227: Units with two or more lamps - C02F 2201/326: Lamp control systems - C02F 2209/006: comprising a software program or a logic diagram - C02F 2209/40: Liquid flow rate - C02F 2303/04: Disinfection - 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 ## Abstract A liquid processing system has: processing units of n stages in which each processing unit includes one or a plurality of processing lines, each processing line includes an ultraviolet ray irradiating unit, and the number of processing lines of an m-th stage processing unit is larger than the number of processing lines of an m+1-th stage processing unit; and adjusting section which adjusts an output of an ultraviolet ray irradiating unit provided to a processing unit of a predetermined stage. An output of an ultraviolet ray irradiating unit provided to a processing unit of a stage other than the predetermined stage is each fixed, and the adjusting section adjusts the output of the let ray irradiating unit provided to the processing unit of the predetermined stage such that a liquid processed in an n-th stage processing unit of a final stage is in a desired processing state. ## Claims ### Claim 1 A liquid processing system comprising: processing units of n stages in total (n is a natural number of two or more), each processing unit including one or a plurality of processing lines, each processing line including an ultraviolet ray irradiating unit, and the number of processing lines of an m-th (m is a natural number smaller than n) stage processing unit being larger than the number of processing lines of an m+1-th stage processing unit; and adjusting section which adjusts an output of an ultraviolet ray irradiating unit provided to a processing unit of a predetermined stage, wherein an output of an ultraviolet ray irradiating unit provided to a processing unit of a stage other than the predetermined stage is each fixed, and the adjusting section adjusts the output of the ultraviolet ray irradiating unit provided to the processing unit of the predetermined stage such that a liquid processed in an n-th stage processing unit of a final stage is in a desired processing state. ### Claim 2 (depends on 1) The liquid processing system according to claim 1, wherein the adjusting section fixes to a maximum output the output of the ultraviolet ray irradiating unit provided to the stage other than the predetermined stage. ### Claim 3 (depends on 1) The liquid processing system according to claim 1, wherein the number of processing lines at the final stage is one line. ### Claim 4 (depends on 1) The liquid processing system according to claim 1, wherein each processing line of the processing unit of the predetermined stage includes a flowmeter on an upstream side of the ultraviolet ray irradiating unit, and the adjusting section adjusts the output of the ultraviolet ray irradiating unit provided to the processing unit of the predetermined stage based on a flow rate obtained by the flowmeter. ### Claim 5 (depends on 1) The liquid processing system according to claim 1, wherein the liquid is an aqueous liquid. ### Claim 6 (depends on 1) The liquid processing system according to claim 1, further comprising: a collecting pipe which collects a liquid of each processing line of the m-th stage processing unit, and a distributing pipe which is connected to the collecting pipe, and distributes the liquid from the collecting pipe to each processing line to the m+1-th stage processing unit. ### Claim 7 A control method which is executed in a liquid processing system which comprises: processing units of n stages in total (n is a natural number of two or more), each processing unit including one or a plurality of processing lines, each processing line including an ultraviolet ray irradiating unit, and the number of processing lines of an m-th (m is a natural number smaller than n) stage processing unit being larger than the number of processing lines of an m+1-th stage processing unit; and adjusting section which adjusts an output of an ultraviolet ray irradiating unit provided to a processing unit of a predetermined stage, the control method comprising: fixing an output of an ultraviolet ray irradiating unit provided to a processing unit of a stage other than the predetermined stage, and adjusting the output of the ultraviolet ray irradiating unit provided to the processing unit of the predetermined stage such that a liquid processed in processing lines of an n-th stage processing unit of a final stage is in a desired processing state.