# US 2017/0283285 A1 · Natural water treatment control apparatus, natural water treatment system, natural water treatment control method, and program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0283285 A1 - Document ID: US20170283285A1 - Status: Published application - Kind: A1 - Application number: 15/518,102 - Filed: 2014-10-15 - Published: 2017-10-05 - Earliest claimed: 2014-10-15 - Assignees: Mitsubishi Heavy Industries, Ltd. - Applicants: Mitsubishi Heavy Industries, Ltd. - Inventors: Masayuki Tabata; Gaku Kondo; Katsunori Matsui; Takayoshi Hori; Katsuhiko Yokohama; Yoshiaki Ito; Shintaro Taura; Kazuhisa Takeuchi - Web page: https://patentgrep.com/patent/US20170283285A1 ## CPC - C02F 1/52: by flocculation or precipitation of suspended impurities {(C02F1/463 takes precedence)} - B01D 61/04: Feed pretreatment - B01D 61/12: Controlling or regulating - B01D 65/02: Membrane cleaning or sterilisation {; Membrane regeneration} - C02F 1/00: Treatment of water, waste water, or sewage (C02F3/00 - C02F9/00 take precedence) - C02F 1/008: {Control or steering systems not provided for elsewhere in subclass C02F} - C02F 1/265: {Desalination} - H04L 69/22: Parsing or analysis of headers - B01D 2311/2642: Aggregation, sedimentation, flocculation, precipitation or coagulation - B01D 2311/2649: Filtration - B01D 2313/70: Control means using a programmable logic controller [PLC] or a computer - B01D 2321/04: Backflushing - B01D 2321/40: Automatic control of cleaning processes - C02F 1/001: {Processes for the treatment of water whereby the filtration technique is of importance (C02F1/44 takes precedence; construction of filters in general B01D24/00 - B01D41/00)} - C02F 1/441: {by reverse osmosis} - C02F 1/5245: {using basic salts, e.g. of aluminium and iron} - C02F 1/56: Macromolecular compounds - C02F 2103/08: Seawater, e.g. for desalination - C02F 2209/005: Processes using a programmable logic controller [PLC] - C02F 2209/006: comprising a software program or a logic diagram - C02F 2209/03: Pressure - Y02A 20/144: Wave energy - 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) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## Abstract A natural water treatment control apparatus (190) controls a treatment device configured to perform treatment used to contribute to purification of drawn natural water. The natural water treatment control apparatus (190) includes: a tide information acquiring unit (191) configured to acquire tide information serving as information associated with tides of a body of water from which the natural water is drawn; and a treatment mode determining unit (193) configured to determine a treatment mode of the treatment device on the basis of the tide information. ## Claims ### Claim 1 A natural water treatment control apparatus which controls a treatment device configured to perform treatment used to contribute to purification of drawn natural water, the natural water treatment control apparatus comprising: a tide information acquiring unit configured to acquire tide information serving as information associated with tides of a body of water from which the natural water is drawn; and a treatment mode determining unit configured to determine a treatment mode of the treatment device on the basis of the tide information. ### Claim 2 (depends on 1) The natural water treatment control apparatus according to claim 1, wherein the treatment device is a backwash device of a filtering device configured to filter the drawn natural water, and the treatment mode determining unit determines at least one of a frequency and an amount of water for backwash of the filtering device using the treatment device on the basis of the tide information. ### Claim 3 (depends on 1) The natural water treatment control apparatus according to claim 1, wherein the treatment device is a flocculant adding device configured to add a flocculant to the drawn natural water, and the treatment mode determining unit determines at least one of an amount of addition and a type of the flocculant of the treatment device on the basis of the tide information. ### Claim 4 (depends on 1) The natural water treatment control apparatus according to claim 1, wherein the tide information includes a tide level of a natural water drawing source, and the treatment mode determining unit determines a treatment mode of the treatment device on the basis of a difference between an average value of tide levels at the time of high tide and at the time of low tide of the water drawing source and tide levels indicated by the tide information. ### Claim 5 (depends on 1) The natural water treatment control apparatus according to claim 1, wherein the tide information includes information indicating a positional relationship between the sun and the moon. ### Claim 6 (depends on 1) A natural water treatment system comprising: a treatment device configured to perform treatment used to contribute to purification of drawn natural water; and the natural water treatment control apparatus according to claim 1. ### Claim 7 A natural water treatment control method for controlling a treatment device configured to perform treatment used to contribute to purification of drawn natural water, the natural water treatment control method comprising: a step of acquiring tide information serving as information associated with tides of a body of water from which the natural water is drawn; and a step of determining a treatment mode of the treatment device on the basis of the tide information. ### Claim 8 A program causing a computer, stored in a non-transitory computer readable recording medium to function as: a tide information acquiring unit configured to acquire tide information serving as information associated with tides of a body of water from which natural water is drawn; and a treatment mode determining unit configured to determine a treatment mode of a treatment device configured to perform treatment used to contribute to purification of the drawn natural water on the basis of the tide information.