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FR2370800A1 - Production electrolytique d'halogene desinfectant - Google Patents

Production electrolytique d'halogene desinfectant

Info

Publication number
FR2370800A1
FR2370800A1 FR7733919A FR7733919A FR2370800A1 FR 2370800 A1 FR2370800 A1 FR 2370800A1 FR 7733919 A FR7733919 A FR 7733919A FR 7733919 A FR7733919 A FR 7733919A FR 2370800 A1 FR2370800 A1 FR 2370800A1
Authority
FR
France
Prior art keywords
halogen
electrolytic production
disinfectant
enclosure
electrode plates
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.)
Granted
Application number
FR7733919A
Other languages
English (en)
Other versions
FR2370800B1 (fr
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.)
Diamond Shamrock Corp
Original Assignee
Diamond Shamrock Corp
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 Diamond Shamrock Corp filed Critical Diamond Shamrock Corp
Publication of FR2370800A1 publication Critical patent/FR2370800A1/fr
Application granted granted Critical
Publication of FR2370800B1 publication Critical patent/FR2370800B1/fr
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/036Bipolar electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674Treatment 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
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/24Halogens or compounds thereof
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46119Cleaning the electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46128Bipolar electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023Water in cooling circuits
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/42Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/46Apparatus for electrochemical processes
    • C02F2201/461Electrolysis apparatus
    • C02F2201/46105Details relating to the electrolytic devices
    • C02F2201/4612Controlling or monitoring
    • C02F2201/4615Time
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/02Fluid flow conditions
    • C02F2301/022Laminar
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne la production d'halogène désinfectant. Pour produire cet halogene on utilise une cellule électrolytique comprenant une enceinte, des moyens de liaisons de cette enceinte à un système de distribution de liquide, une pluralité de plaques d'électrode planes espacées et parallèles, des moyens de liaison pour relier une source d'énergie électrique avec une partie des plaques d'électrode et un sel halogéné dont la concentration est supérieure à 0,5 g/l. Application à la désinfection des eaux de piscine, de tours de refroidissement.
FR7733919A 1976-11-11 1977-11-10 Production electrolytique d'halogene desinfectant Granted FR2370800A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/740,870 US4100052A (en) 1976-11-11 1976-11-11 Electrolytic generation of halogen biocides

Publications (2)

Publication Number Publication Date
FR2370800A1 true FR2370800A1 (fr) 1978-06-09
FR2370800B1 FR2370800B1 (fr) 1980-08-22

Family

ID=24978418

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733919A Granted FR2370800A1 (fr) 1976-11-11 1977-11-10 Production electrolytique d'halogene desinfectant

Country Status (19)

Country Link
US (1) US4100052A (fr)
JP (1) JPS5361574A (fr)
AU (1) AU507752B2 (fr)
BE (1) BE867520A (fr)
BR (1) BR7707538A (fr)
DE (1) DE2749969C3 (fr)
DK (1) DK499977A (fr)
ES (1) ES464027A1 (fr)
FI (1) FI773365A (fr)
FR (1) FR2370800A1 (fr)
GB (1) GB1567817A (fr)
GR (1) GR66179B (fr)
IL (1) IL53345A0 (fr)
IT (1) IT1091781B (fr)
NL (1) NL7805035A (fr)
NO (1) NO773838L (fr)
NZ (1) NZ185656A (fr)
SE (1) SE7712705L (fr)
ZA (1) ZA776721B (fr)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3138438C2 (de) * 1981-09-26 1984-07-05 W.C. Heraeus Gmbh, 6450 Hanau Elektrolysezelle
US4714534A (en) * 1986-06-20 1987-12-22 Olin Corporation Electrolytic halogenator device
JPS6354494U (fr) * 1986-09-29 1988-04-12
JPS6358689U (fr) * 1986-10-03 1988-04-19
US4790923A (en) * 1987-07-07 1988-12-13 Stillman Neil W Liquid treating electrolytic cell
US5359769A (en) * 1989-03-06 1994-11-01 Silveri Michael A Installation method for pool purifier
US4992156A (en) * 1989-03-06 1991-02-12 Silveri Michael A Electrolytic pool purifier
USRE37055E1 (en) 1989-08-18 2001-02-20 Michael A. Silveri Pool purifier attaching apparatus and method
US5389210A (en) * 1989-08-18 1995-02-14 Silveri; Michael A. Method and apparatus for mounting an electrolytic cell
US5580438A (en) * 1989-08-18 1996-12-03 Silveri; Michael A. Pool purifier attaching apparatus and method
US5221444A (en) * 1991-11-15 1993-06-22 Silveri Michael A Electrolytic pool purifier system
US5254226A (en) * 1992-05-05 1993-10-19 Ad Rem Manufacturing, Inc. Electrolytic cell assembly and process for production of bromine
US5405541A (en) * 1992-06-17 1995-04-11 Baltimore Aircoil Company, Inc. Water treatment process
US5314589A (en) * 1992-10-15 1994-05-24 Hawley Macdonald Ion generator and method of generating ions
US5273687A (en) * 1992-12-09 1993-12-28 Baltimore Aircoil Company Microbiological control of recirculating water in evaporative cooling systems at idle conditions
US5752282A (en) * 1995-03-30 1998-05-19 Bioquest Spa fitting
US5545310A (en) * 1995-03-30 1996-08-13 Silveri; Michael A. Method of inhibiting scale formation in spa halogen generator
US6007693A (en) * 1995-03-30 1999-12-28 Bioquest Spa halogen generator and method of operating
US5676805A (en) * 1995-03-30 1997-10-14 Bioquest SPA purification system
US5759384A (en) * 1995-03-30 1998-06-02 Bioquest Spa halogen generator and method of operating
CA2204941C (fr) * 1996-05-21 2002-04-02 Paul F. Fulmer Methode et appareil pour optimiser la production electrolytique d'un halogene dans un systeme de traitement de l'eau
US5985155A (en) * 1997-11-14 1999-11-16 Autopilot Systems, Inc. Method and apparatus for automatic adjustment of halogen production in a water treatment system
US6096202A (en) * 1998-09-28 2000-08-01 Autopilot Systems, Inc. Method and apparatus for optimizing electrolytic production of a halogen in a water treatment system
US6315886B1 (en) 1998-12-07 2001-11-13 The Electrosynthesis Company, Inc. Electrolytic apparatus and methods for purification of aqueous solutions
US7048842B2 (en) 2001-06-22 2006-05-23 The Procter & Gamble Company Electrolysis cell for generating chlorine dioxide
US20030042134A1 (en) * 2001-06-22 2003-03-06 The Procter & Gamble Company High efficiency electrolysis cell for generating oxidants in solutions
US6921743B2 (en) * 2001-04-02 2005-07-26 The Procter & Gamble Company Automatic dishwashing compositions containing a halogen dioxide salt and methods for use with electrochemical cells and/or electrolytic devices
US20040149571A1 (en) * 2001-09-06 2004-08-05 The Procter & Gamble Company Electrolysis cell for generating halogen (and particularly chlorine) dioxide in an appliance
US20030213503A1 (en) * 2002-05-17 2003-11-20 The Procter & Gamble Company Signal-based electrochemical methods for automatic dishwashing
US7413637B2 (en) * 2002-05-17 2008-08-19 The Procter And Gamble Company Self-contained, self-powered electrolytic devices for improved performance in automatic dishwashing
US20030213505A1 (en) * 2002-05-17 2003-11-20 Price Kenneth Nathan Energy-efficient automatic dishwashing appliances
US20040055896A1 (en) * 2002-09-20 2004-03-25 Sterilox Technologies, Inc. Biocidal solution
CA2533389A1 (fr) * 2003-07-21 2005-02-03 Richard Holstein Generateur de sel et chlore
US20050067300A1 (en) * 2003-09-25 2005-03-31 The Procter & Gamble Company Electrolysis device for treating a reservoir of water
US20060054567A1 (en) * 2004-09-16 2006-03-16 Charles Mousseau System for sanitizing a spa
US20060086622A1 (en) 2004-10-21 2006-04-27 Trust Sterile Services Ltd. Apparatus and method for electrolytic cleaning
EP1819410B1 (fr) 2004-10-26 2019-03-13 Pentair Water Pool and Spa, Inc. Chlorateur en ligne a bloc de commande et dissipation de chaleur integreé
US20100250449A1 (en) * 2004-10-26 2010-09-30 Kevin Doyle Inline chlorinator with integral control package, heat dissipation and warranty information accumulator
KR100597254B1 (ko) * 2005-09-14 2006-07-06 한국해양연구원 선박용 밸러스트수의 전해 소독장치
EP1816106A1 (fr) * 2006-02-06 2007-08-08 M. Vincent Delannoy Procédé de traitement d'une solution aqueuse par électrolyse.
US7954508B2 (en) * 2006-03-03 2011-06-07 KBK Technologies, Inc. Electronically controlled valve actuator in a plumbed water line within a water conditioning management system
US7993600B2 (en) 2006-03-03 2011-08-09 KBK Technologies Inc. Salt dispensing system
WO2008000029A1 (fr) * 2006-06-27 2008-01-03 Poolrite Research Pty Ltd Procédé perfectionné pour le traitement de l'eau
WO2008124140A1 (fr) * 2007-04-05 2008-10-16 Siemens Water Technologies Corp. Procédé et système de traitement électrolytique
US10006214B2 (en) 2009-01-28 2018-06-26 Pentair Water Pool And Spa, Inc. pH balancing dispenser and system with piercing opener
US9416034B2 (en) * 2009-01-28 2016-08-16 Pentair Water Pool And Spa, Inc. pH balancing system
AU2011100255B4 (en) 2010-04-29 2011-08-25 Zodiac Group Australia Pty Limited Method for water treatment
US10023483B2 (en) 2011-07-11 2018-07-17 Zodiac Group Australia Pty Ltd. Liquid chemical composition
US8562810B2 (en) 2011-07-26 2013-10-22 Ecolab Usa Inc. On site generation of alkalinity boost for ware washing applications
ES2940096T3 (es) 2011-07-29 2023-05-03 Hayward Ind Inc Cartuchos de células reemplazables para cloradores
EP2736848A4 (fr) 2011-07-29 2016-03-16 Hayward Ind Inc Systèmes et procédés de commande de chloromètres
CA2926075C (fr) * 2012-10-05 2023-02-14 Geofrey SHOWALTER Generation sur site sans transformateur
CA3057298A1 (fr) 2017-03-21 2018-09-27 Hayward Industries, Inc. Systemes et procedes de desinfection d'eau de piscine et d'eau d'etablissement thermal
EP3868720B1 (fr) 2017-04-01 2025-04-02 Intex Marketing Ltd. Système de traitement des eaux
US11420885B2 (en) * 2018-02-28 2022-08-23 Waterdiam Group Llc Electrolysis method and device for water
FR3088542B1 (fr) * 2018-11-21 2021-03-19 Waterdiam France Sas Composition cicatrisante comprenant une eau électrolysée
US20220371925A1 (en) * 2018-11-21 2022-11-24 Waterdiam Group Llc Clean water for bathing and medical treatments
US20220340456A1 (en) * 2021-04-21 2022-10-27 Custom Molded Products, Llc Electrolytic chlorinator with individually replaceable electrodes and methods and systems for use thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779889A (en) * 1972-04-07 1973-12-18 Diamond Shamrock Corp Electrolytic cell for the manufacture of oxyhalogens
US3835020A (en) * 1973-02-09 1974-09-10 F Galneder Electrical termination means and electrode spacing means for maintaining a uniform electrode gap
FR2234234A1 (fr) * 1973-06-21 1975-01-17 Diamond Shamrock Corp
US3941675A (en) * 1971-09-28 1976-03-02 Friedrich Uhde Gmbh Bipolar multiple electrolytic cell comprising a diaphragm and electrode for same
FR2283699A1 (fr) * 1974-09-05 1976-04-02 Sachs Systemtechnik Gmbh Dispositif pour la sterilisation et la decontamination de liquides par oxydation anodique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US844167A (en) * 1906-10-06 1907-02-12 American Filtration Company Water-purifying apparatus.
US943187A (en) * 1908-03-02 1909-12-14 Mcdowell Mfg Co Electrolytic water-purifying apparatus.
US1026857A (en) * 1910-06-04 1912-05-21 Laura G Fixen Electrolytic apparatus.
US2864750A (en) * 1953-12-01 1958-12-16 Sta Lit Lighter Company Method and apparatus for water treatment
NL125501C (fr) * 1958-03-18
US3305472A (en) * 1963-03-13 1967-02-21 Dow Chemical Co Purifying water with bromine
GB1195871A (en) * 1967-02-10 1970-06-24 Chemnor Ag Improvements in or relating to the Manufacture of Electrodes.
US3766045A (en) * 1970-09-08 1973-10-16 Daiki Engineering Co Electrolytic cell for electrolysis of sea water
US3926754A (en) * 1972-02-11 1975-12-16 Andco Inc Electrochemical contaminant removal from aqueous media
IT1003156B (it) * 1973-10-30 1976-06-10 Oronzio De Nora Impianti Elettrolizzatore per la produzione di composti ossigenati del cloro da soluzioni di cloruri alcalini
DE2652125A1 (de) 1975-11-18 1977-06-02 Douglas John Elston Morrison Elektrolysezelle fuer eine schwimmbeckenchlorungsanlage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941675A (en) * 1971-09-28 1976-03-02 Friedrich Uhde Gmbh Bipolar multiple electrolytic cell comprising a diaphragm and electrode for same
US3779889A (en) * 1972-04-07 1973-12-18 Diamond Shamrock Corp Electrolytic cell for the manufacture of oxyhalogens
US3835020A (en) * 1973-02-09 1974-09-10 F Galneder Electrical termination means and electrode spacing means for maintaining a uniform electrode gap
FR2234234A1 (fr) * 1973-06-21 1975-01-17 Diamond Shamrock Corp
FR2283699A1 (fr) * 1974-09-05 1976-04-02 Sachs Systemtechnik Gmbh Dispositif pour la sterilisation et la decontamination de liquides par oxydation anodique

Also Published As

Publication number Publication date
US4100052A (en) 1978-07-11
ES464027A1 (es) 1978-11-16
BR7707538A (pt) 1978-08-22
DE2749969B2 (de) 1979-07-19
BE867520A (fr) 1978-09-18
NO773838L (no) 1978-05-12
GB1567817A (en) 1980-05-21
IL53345A0 (en) 1978-01-31
JPS5361574A (en) 1978-06-02
DE2749969A1 (de) 1978-05-18
ZA776721B (en) 1978-12-27
FR2370800B1 (fr) 1980-08-22
DK499977A (da) 1978-05-12
SE7712705L (sv) 1978-05-12
IT1091781B (it) 1985-07-06
AU507752B2 (en) 1980-02-28
FI773365A (fi) 1978-05-12
NL7805035A (nl) 1979-11-13
NZ185656A (en) 1981-05-01
DE2749969C3 (de) 1980-03-13
AU3049877A (en) 1979-05-17
GR66179B (fr) 1981-01-21

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