US20120073983A1 - Producing apparatus and producing method of hypochlorous acid water - Google Patents

Producing apparatus and producing method of hypochlorous acid water Download PDF

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Publication number
US20120073983A1
US20120073983A1 US13/159,109 US201113159109A US2012073983A1 US 20120073983 A1 US20120073983 A1 US 20120073983A1 US 201113159109 A US201113159109 A US 201113159109A US 2012073983 A1 US2012073983 A1 US 2012073983A1
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US
United States
Prior art keywords
water
hypochlorous acid
acid water
storage tank
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/159,109
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English (en)
Inventor
Mamoru Tomita
Yukihiro Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dairy Techno Inc
Original Assignee
Dairy Techno Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dairy Techno Inc filed Critical Dairy Techno Inc
Assigned to DAIRY TECHNO INC. reassignment DAIRY TECHNO INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TOMITA, MAMORU, TOMITA, YUKIHIRO
Publication of US20120073983A1 publication Critical patent/US20120073983A1/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C02F1/763—Devices for the addition of such compounds in gaseous form
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4611—Fluid flow
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/29—Chlorine compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/043—Treatment of partial or bypass streams
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

Definitions

  • the invention relates to a producing apparatus and a producing method of hypochlorous acid water that is effective as sterilizing water.
  • a producing apparatus of hypochlorous acid water a producing apparatus constructed such that a raw water feed pipe c is connected from a raw water tank a to an electrolytic vessel b in which no diaphragm exists between an anode and a cathode, and a hydrochloric acid feed pipe e from a hydrochloric acid tank d is connected in communication with the raw water feed pipe c, and hypochlorous acid water having a desired concentration is obtained in the electrolytic vessel b (refer to Jpn. Pat. Appln. KOKAI Publication No. 10-128336).
  • symbol f shows a raw water pump interposed in the raw water feed pipe c
  • symbol g shows a hydrochloric acid metering pump interposed in the hydrochloric acid feed pipe e
  • symbol h shows a discharge pipe of an electrolytically treated liquid from the electrolytic vessel b.
  • the conventional hypochlorous acid water producing apparatus has the following problems.
  • hypochlorous acid water that can be produced in the electrolytic vessel b Since the amount of hypochlorous acid water that can be produced in the electrolytic vessel b is small, it is difficult to adjust the hypochlorous acid water to a predetermined concentration, and, it is also difficult to adjust hypochlorous acid water so that it has a high concentration and a system is necessary to control the concentration, from which a problem arises in that cost is increased.
  • hypochlorous acid water there is a problem in that when raw water being used contains a large amount of organic matters, it is difficult to keep hypochlorous acid in hypochlorous acid water to a predetermined concentration.
  • An object of the invention is to provide a producing apparatus and a producing method of hypochlorous acid water that can overcome the problems and obtain hypochlorous acid water having a desired amount of production and a desired concentration.
  • a first invention relates to a producing apparatus which includes an electrolytic vessel to which dilute hydrochloric acid is supplied and in which no diaphragm exists between an anode and a cathode for generating a chlorine gas, a storage tank in which water is stored, a circulation pipe into which water flows from the storage tank, in which the water circulates, and from which the water returns into the storage tank, and a mixing pipe which couples between the electrolytic vessel and the circulation pipe, mixes the chlorine gas from the electrolytic vessel with the water in the circulation pipe, and produces hyprochlorous acid water, and, a second invention relates to a producing method which includes a step of generating a chlorine gas by subjecting dilute hydrochloric acid being supplied to an electrolytic treatment in an electrolytic vessel in which no diaphragm exists between an anode and a cathode, and a step of producing hypochlorous acid water having a desired amount of production and a desired concentration by injecting the chlorine gas into the water that circulates in the
  • the electrolytic vessel can be made compact and further hypochlorous acid water having a desired concentration can be gradually produced easily by circulating the water in the storage tank until the desired concentration is reached in the same electrolytic vessel and under the same electrolytic condition. Further, hypochlorous acid water having a high concentration can be also produced. According to the method of the invention, anyone can produce hypochlorous acid water having a desired amount of production and a desired concentration simply, easily, safely, and economically.
  • FIG. 1 is a piping diagram of an embodiment of a hypochlorous acid water producing apparatus of the invention
  • FIG. 2 is a piping diagram of another embodiment of the hypochlorous acid water producing apparatus of the invention.
  • FIG. 3 is a piping diagram of a conventional hypochlorous acid water producing apparatus.
  • FIG. 1 An embodiment 1 of a hypochlorous acid water producing apparatus of the invention will be explained referring to FIG. 1 .
  • reference numeral 1 shows an electrolytic vessel, and the electrolytic vessel 1 has an anode 10 a and a cathode 10 b which are disposed in the electrolytic vessel 1 and between which no diaphragm exists.
  • Reference numeral 2 shows a dilute hydrochloric acid tank
  • a water feed pipe 3 is coupled between the dilute hydrochloric acid tank 2 and the electrolytic vessel 1
  • a dilute hydrochloric acid pump 4 is interposed in the water feed pipe 3 and the dilute hydrochloric acid in the dilute hydrochloric acid tank 2 is supplied to the electrolytic vessel 1 by driving the dilute hydrochloric acid pump 4 .
  • Reference numeral 5 shows a storage tank
  • 6 shows a circulation pipe
  • a flow-in pipe portion 6 a and a flow-out pipe portion 6 b of the circulation pipe 6 are connected to the storage tank 5
  • a circulation pump 7 is interposed to an intermediate portion of the circulation pipe 6
  • the water in the storage tank 5 flows from the flow-in pipe portion 6 a into the circulation pipe 6
  • Reference numeral 8 shows a mixing pipe, an end of the mixing pipe 8 is connected to the electrolytic vessel 1 , and, the other end thereof is connected to a mixing portion A of the intermediate portion of the circulation pipe 6 , and the chlorine gas generated in the electrolytic vessel 1 is mixed with the water which flows in the circulation pipe 6 via the mixing pipe 8 , thereby hypochlorous acid water is produced.
  • Reference numeral 9 shows a discharge pipe of hypochlorous acid water
  • 10 shows a power supply of the anode 10 a and the cathode 10 b.
  • the storage tank 5 has a discharge port (not shown) for discharging the hydrogen gas generated in the electrolytic vessel 1 to the outside.
  • the dilute hydrochloric acid in the dilute hydrochloric acid tank 2 is supplied into the electrolytic vessel 1 by driving the dilute hydrochloric acid pump 4 .
  • the dilute hydrochloric acid is continuously subjected to an electrolytic treatment by energizing both the anode 10 a and the cathode 10 b dipped into the dilute hydrochloric acid, thereby generating a chlorine gas.
  • the water in the storage tank 5 is circulated and flown in the circulation pipe 6 by driving the circulation pump 7 .
  • the chlorine gas flows in the mixing pipe 8 , is mixed with the water, which flows in the circulation pipe 6 , at the mixing portion A, and produces hypochlorous acid water which is stored in the storage tank 5 while being produced.
  • hypochlorous acid water has a low concentration
  • hypochlorous acid water gradually becomes hypochlorous acid water having a high concentration by being mixed with the chlorine gas while repeatedly circulating in the circulation pipe 6 .
  • the producing apparatus is continuously operated until the hypochlorous acid water in the storage tank 5 has a desired concentration.
  • hypochlorous acid water having a desired high concentration can be obtained.
  • hypochlorous acid water produced in the storage tank 5 has pH of 2.0 or more to 7.0 or less and preferably has pH of 5.0 or more to 6.5 or less than.
  • hypochlorous acid water has a concentration of 2 ppm or more and preferably has a concentration of 10-600 ppm.
  • hypochlorous acid water having a low concentration of 2 ppm to hypochlorous acid water having a high concentration of 600 ppm to about 1000 ppm can be produced.
  • hypochlorous acid water having an optional concentration can be produced from a small amount to a large amount by variously adjusting the capacity of the storage tank 5 , the circulation amount or the circulation time of the liquid in the circulation pipe 6 , or the amount of the chlorine gas generated in the electrolytic vessel 1 .
  • hypochlorous acid water in a preferable range of pH can be easily obtained by neutralizing the water by mixing an alkaline pH adjuster containing Ca, Mg, Na, K, and the like with the water in the storage tank, and, hypochlorous acid water in the preferable range of pH can be easily obtained by replenishing hypochlorous acid in the amount consumed by the organic matters.
  • FIG. 2 An embodiment 2 of the hypochlorous acid water producing apparatus of the invention will be explained referring to FIG. 2 .
  • a first storage tank 5 a and a second storage tank 5 b are installed, the flow-in pipe portion 6 a of the circulation pipe 6 is branched to a first flow-in branch pipe portion 6 aa and a second flow-in branch pipe portion 6 ab , and, the flow-out pipe portion 6 b of the circulation pipe 6 is branched to a first flow-out branch pipe portion 6 ba and a second flow-out branch pipe portion 6 bb , the first flow-in branch pipe portion 6 aa and the first flow-out branch pipe portion 6 ba are connected to the first storage tank 5 a , and, the second flow-in branch pipe portion 6 ab and the second flow-out branch pipe portion 6 bb are connected to the second storage tank 5 b , further, switch valves 11 a , 11 b are interposed to a branch portion of the flow-in pipe portion 6 a and a branch portion of the flow-out pipe portion 6 b , respectively, the switch valves 11 a , 11 b are switched to
  • hypochlorous acid water having a desired concentration is produced in the first storage tank 5 a
  • the switch valve 11 a , 11 b are switched to the second flow-in branch pipe portion 6 ab and the second flow-out branch pipe portion 6 bb
  • the water in the second storage tank 5 b is circulated as in the embodiment 1 so as to be made to hypochlorous acid water having the desired concentration in the second storage tank 5 b .
  • hypochlorous acid water having a desired concentration is produced in the one of the storage tanks, the hypochlorous acid water which is already produced in the other storage tank and has the desired concentration can be used. Accordingly, hypochlorous acid water can be continuously produced and used by alternately using both the tanks.
  • the producing apparatus and the producing method of hypochlorous acid water of the invention are used in food factory, chicken farm, milking farm, agricultural farm, medical and nursing care facility, restaurant, and the like.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
US13/159,109 2010-09-24 2011-06-13 Producing apparatus and producing method of hypochlorous acid water Abandoned US20120073983A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-213180 2010-09-24
JP2010213180A JP5758099B2 (ja) 2010-09-24 2010-09-24 次亜塩素酸水の製造装置及び製造方法

Publications (1)

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US20120073983A1 true US20120073983A1 (en) 2012-03-29

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US13/159,109 Abandoned US20120073983A1 (en) 2010-09-24 2011-06-13 Producing apparatus and producing method of hypochlorous acid water

Country Status (5)

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US (1) US20120073983A1 (zh)
EP (1) EP2433705A1 (zh)
JP (1) JP5758099B2 (zh)
CN (1) CN102418113A (zh)
TW (1) TWI537425B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120255866A1 (en) * 2011-04-08 2012-10-11 Wong Siu Ming Method for producing electrolyzed water
CN110314566A (zh) * 2019-05-29 2019-10-11 山东消博士消毒科技股份有限公司 一种消毒液制备系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101360079B1 (ko) * 2012-03-12 2014-02-21 (주)미라클린 무격막 전해조
JP6226845B2 (ja) * 2014-09-19 2017-11-08 株式会社東芝 電解装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616234A (en) * 1995-10-31 1997-04-01 Pepcon Systems, Inc. Method for producing chlorine or hypochlorite product
US6126797A (en) * 1997-10-09 2000-10-03 Sanden Corporation Water purifying apparatus capable of effectively and reliably producing purified water with a small chlorine generator

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JPS5716179A (en) * 1981-05-29 1982-01-27 Daiki Gomme Kogyo Kk Preparation of hypochlorite by electrolysis of salt water
US5326443A (en) * 1992-11-13 1994-07-05 Herbet Hilbig Chlorinating system
JPH07155770A (ja) * 1993-12-03 1995-06-20 Masanori Abe 感染防止方法及びその装置並びにこれを利用した殺菌済み飲用水及び殺菌済み空調用冷却水の製造方法
JP3798486B2 (ja) 1995-11-08 2006-07-19 森永乳業株式会社 殺菌剤の製造方法、その製造装置及び殺菌剤、並びに殺菌処理方法
DE10051180A1 (de) * 2000-10-16 2002-08-08 Owg Tech Anlagenbau Gmbh Verfahren und Einrichtung zur Herstellung einer Desinfektionslösung
JP2006271449A (ja) * 2005-03-28 2006-10-12 Toray Ireeve Corp 洗浄機能付きの微酸性水噴霧器
CN101360686A (zh) * 2005-12-09 2009-02-04 肯尼思·罗兰·瓦尔科 连续式次氯酸盐发生器
JP4668884B2 (ja) * 2006-11-06 2011-04-13 ヒロセ電機株式会社 微酸性水生成装置
JP2009226255A (ja) * 2008-03-19 2009-10-08 Sekisui Chem Co Ltd オゾン水処理装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5616234A (en) * 1995-10-31 1997-04-01 Pepcon Systems, Inc. Method for producing chlorine or hypochlorite product
US6126797A (en) * 1997-10-09 2000-10-03 Sanden Corporation Water purifying apparatus capable of effectively and reliably producing purified water with a small chlorine generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120255866A1 (en) * 2011-04-08 2012-10-11 Wong Siu Ming Method for producing electrolyzed water
US9481575B2 (en) * 2011-04-08 2016-11-01 Tze Kei Choi Method for producing electrolyzed water
CN110314566A (zh) * 2019-05-29 2019-10-11 山东消博士消毒科技股份有限公司 一种消毒液制备系统

Also Published As

Publication number Publication date
TW201224219A (en) 2012-06-16
JP2012067356A (ja) 2012-04-05
EP2433705A1 (en) 2012-03-28
JP5758099B2 (ja) 2015-08-05
TWI537425B (zh) 2016-06-11
CN102418113A (zh) 2012-04-18

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Owner name: DAIRY TECHNO INC., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TOMITA, MAMORU;TOMITA, YUKIHIRO;REEL/FRAME:026629/0776

Effective date: 20110630

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION