PL348151A1 - Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals - Google Patents

Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals

Info

Publication number
PL348151A1
PL348151A1 PL99348151A PL34815199A PL348151A1 PL 348151 A1 PL348151 A1 PL 348151A1 PL 99348151 A PL99348151 A PL 99348151A PL 34815199 A PL34815199 A PL 34815199A PL 348151 A1 PL348151 A1 PL 348151A1
Authority
PL
Poland
Prior art keywords
chemicals
purification
synthesis
methods
aqueous solutions
Prior art date
Application number
PL99348151A
Inventor
Guillermo Daniel Zappi
Norman L Weinberg
Original Assignee
Zappi Water Purification Syste
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
Priority claimed from US09/206,924 external-priority patent/US6315886B1/en
Application filed by Zappi Water Purification Syste filed Critical Zappi Water Purification Syste
Publication of PL348151A1 publication Critical patent/PL348151A1/en

Links

Classifications

    • 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
    • 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
    • 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
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • 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
    • 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
    • C02F1/4676Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • 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
    • 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
    • C02F2001/46133Electrodes characterised by the material
    • 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
    • C02F2001/46152Electrodes characterised by the shape or form
    • C02F2001/46157Perforated or foraminous electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • C02F2101/163Nitrates
    • 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
    • C02F2103/30Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • 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
    • C02F2201/4611Fluid flow
    • 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
    • C02F2201/46115Electrolytic cell with membranes or diaphragms
    • 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
    • C02F2201/46155Heating or cooling
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/026Fenton's reagent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
PL99348151A 1998-12-07 1999-12-06 Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals PL348151A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/206,924 US6315886B1 (en) 1998-12-07 1998-12-07 Electrolytic apparatus and methods for purification of aqueous solutions
US09/433,686 US6328875B1 (en) 1998-12-07 1999-11-04 Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals
PCT/US1999/028869 WO2000034184A1 (en) 1998-12-07 1999-12-06 Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals

Publications (1)

Publication Number Publication Date
PL348151A1 true PL348151A1 (en) 2002-05-06

Family

ID=26901806

Family Applications (1)

Application Number Title Priority Date Filing Date
PL99348151A PL348151A1 (en) 1998-12-07 1999-12-06 Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals

Country Status (23)

Country Link
EP (1) EP1150921A4 (en)
JP (1) JP2002531704A (en)
CN (1) CN1329576A (en)
AP (1) AP2001002197A0 (en)
AU (1) AU767548B2 (en)
BG (1) BG105679A (en)
BR (1) BR9915992A (en)
CA (1) CA2355346C (en)
CZ (1) CZ20012002A3 (en)
EE (1) EE200100303A (en)
HU (1) HUP0104664A2 (en)
ID (1) ID30239A (en)
IL (1) IL143529A0 (en)
IS (1) IS5954A (en)
MX (1) MXPA01005705A (en)
NO (1) NO20012804D0 (en)
NZ (1) NZ512645A (en)
OA (1) OA11806A (en)
PL (1) PL348151A1 (en)
SK (1) SK7672001A3 (en)
TR (1) TR200101659T2 (en)
TW (1) TW490444B (en)
WO (1) WO2000034184A1 (en)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ID30239A (en) * 1998-12-07 2001-11-15 Zappi Water Purification Syste ELECTROLITICAL APARATUS, METHOD FOR PURIFICATION OF WATER SOLUTION AND CHEMICAL SYSTEMS
GB9920532D0 (en) 1999-09-01 1999-11-03 Univ Abertay Method
US20030042134A1 (en) 2001-06-22 2003-03-06 The Procter & Gamble Company High efficiency electrolysis cell for generating oxidants in solutions
CA2434646C (en) * 2001-02-15 2011-08-23 The Procter & Gamble Company High efficiency electrolysis cell for generating oxidants in solutions
US7048842B2 (en) 2001-06-22 2006-05-23 The Procter & Gamble Company Electrolysis cell for generating chlorine dioxide
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
EP1254972A1 (en) 2001-05-01 2002-11-06 CSEM Centre Suisse d'Electronique et de Microtechnique SA Modular electrochemical cell
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
US7837882B2 (en) 2002-11-19 2010-11-23 Xogen Technologies Inc. Treatment of a waste stream through production and utilization of oxyhydrogen gas
US9296629B2 (en) 2002-11-19 2016-03-29 Xogen Technologies Inc. Treatment of a waste stream through production and utilization of oxyhydrogen gas
US9187347B2 (en) 2002-11-19 2015-11-17 Xogen Technologies Inc. Treatment of a waste stream through production and utilization of oxyhydrogen gas
MXPA05005386A (en) * 2002-11-19 2005-11-23 Xogen Technologies Inc Treatment of a waste stream through production and utilization of oxyhydrogen gas.
DE102004015680A1 (en) * 2004-03-26 2005-11-03 Condias Gmbh Electrode arrangement for electrochemical treatment of low conductivity liquids
DE102004023161A1 (en) * 2004-05-07 2005-11-24 Eilenburger Elektrolyse- Und Umwelttechnik Gmbh Electrolysis cell with multilayer expanded metal cathodes
EP1650329A3 (en) 2004-10-21 2007-11-07 Trust Sterile Services Limited Apparatus and method for electrolytic cleaning
CN101475244B (en) * 2009-01-13 2011-09-28 长沙创享环保科技有限公司 Electrochemical device for processing heavy metal wastewater
JP4750873B2 (en) * 2009-04-22 2011-08-17 有限会社コメット Method for treating waste liquid containing phenols
US20120279872A1 (en) * 2009-05-20 2012-11-08 Lakehead University Method and system for combined photocatalytic and electrochemical wastewater remediation
JP5113892B2 (en) 2010-04-30 2013-01-09 アクアエコス株式会社 Membrane-electrode assembly, electrolytic cell using the same, ozone water production apparatus, ozone water production method, sterilization method, and waste water / waste liquid treatment method
TW201207155A (en) * 2010-08-11 2012-02-16 Prometheus Energy Technology Co Electrolysis device for producing oxyhydrogen gas
WO2012037677A1 (en) * 2010-09-21 2012-03-29 Institut National De La Recherche Scientifique Method and system for electrochemical removal of nitrate and ammonia
JP2014508213A (en) 2010-12-10 2014-04-03 ユニバーシティー オブ ウロンゴング Improvement regarding multi-layer water splitting apparatus and manufacturing method thereof
EP2697730A4 (en) * 2011-04-15 2015-04-15 Advanced Diamond Technologies Inc Electrochemical system and method for on-site generation of oxidants at high current density
KR101679325B1 (en) * 2011-05-18 2016-11-24 현대중공업 주식회사 Electrolyzer Structure of Electrolysis Apparatus
RU2014152645A (en) 2012-06-12 2016-07-27 Монаш Юниверсити GAS-PERMEABLE ELECTRODE AND METHOD FOR PRODUCING
RU2603772C2 (en) 2012-06-12 2016-11-27 Монаш Юниверсити Breathable electrode and method for use in water splitting
KR20160040615A (en) 2013-07-31 2016-04-14 아쿠아하이드렉스 프로프라이어터리 리미티드 Modular Electrochemical Cells
US10323328B2 (en) 2015-06-19 2019-06-18 Bio-H2-Gen Inc. Method for producing hydrogen gas from aqueous hydrogen sulphide
WO2017132229A1 (en) * 2016-01-29 2017-08-03 Lopez Noe Joshua Electrolytic treater and method for treating water
RU2720309C1 (en) * 2016-11-22 2020-04-28 Асахи Касеи Кабусики Кайся Electrode for electrolysis
TWI633064B (en) 2017-06-05 2018-08-21 財團法人工業技術研究院 Electrolytic reduction module unit and water purification device
US11608281B2 (en) * 2017-07-12 2023-03-21 Axine Water Technologies Inc. Method of operating a wastewater treatment system
TWI648431B (en) * 2018-01-03 2019-01-21 莊政霖 Electrolysis device
AU2019325635B2 (en) * 2018-08-23 2025-04-17 Evoqua Water Technologies Llc System and method for electrochemical oxidation of polyfluoroalkyl substances in water
US11629418B2 (en) * 2018-11-30 2023-04-18 Sedo Engineering Sa By-products (impurity) removal
IT201800021490A1 (en) * 2018-12-31 2020-07-01 Leto Barone Giovanni Electrolytic cell for the production of oxyhydrogen gas.
JP2022519575A (en) 2019-02-01 2022-03-24 アクアハイドレックス, インコーポレイテッド Electrochemical system with confined electrolyte
WO2020171238A1 (en) * 2019-02-22 2020-08-27 学校法人工学院大学 Water electrolysis apparatus, and sterilization/cleaning method and method for decomposing/removing harmful substance, each using water electrolysis apparatus
CA3140327A1 (en) * 2019-06-19 2020-12-24 Yang Chen Electrochemically activated persulfate for advanced oxidation processes
BR102019017102A2 (en) 2019-08-16 2021-03-02 Charles Adriano Duvoisin system and electropurifying method of effluents, through the directed electron trap and corresponding equipment
WO2021252965A1 (en) * 2020-06-12 2021-12-16 Pani Clean, Inc. Hybrid electrodialysis and electrolysis systems and processes
CN112408554B (en) * 2020-11-11 2022-11-15 北京工业大学 A floating double oxygen source gas diffusion electrode device and its application
WO2022266728A1 (en) * 2021-06-21 2022-12-29 Duvoisin Charles Adriano System and method for electroenergizing water and aqueous solutions for use in agriculture and livestock farming, electroenergized fluid and corresponding use
CN115337965B (en) * 2022-07-07 2024-12-17 山东东岳高分子材料有限公司 Experimental perfluorinated ion exchange membrane hydrolysis transformation reaction device
EP4328355A3 (en) * 2022-08-23 2024-08-07 Indian Oil Corporation Limited Process of reusing bi-facial metal substrates for photoactive semiconductor materials for solar water splitting
DE102023123611A1 (en) * 2023-09-01 2025-03-06 Schneider Gmbh & Co. Kg Electrode arrangement for electro-chemical treatment of liquids
WO2025151163A1 (en) * 2024-01-11 2025-07-17 Air Products And Chemicals, Inc. Apparatus and process for electrolyte solution purification for hydrogen production via electrolysis

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399289A (en) * 1940-06-15 1946-04-30 Aqua Electric Corp Ltd Apparatus for purifying liquids
US3859195A (en) * 1972-09-20 1975-01-07 Du Pont Apparatus for electrochemical processing
DE2502167C2 (en) * 1975-01-21 1982-09-23 Basf Ag, 6700 Ludwigshafen Electrochemical cell with bipolar electrodes
US4125439A (en) * 1977-05-31 1978-11-14 National Research Development Corporation Electrochemical cells and methods of electrolysis
US4236990A (en) * 1979-05-29 1980-12-02 King Arthur S Treater with self-cleaning electrodes
CH671408A5 (en) * 1987-02-20 1989-08-31 Bbc Brown Boveri & Cie
FR2628757B1 (en) * 1988-03-17 1992-01-17 Atochem METHOD FOR REGULATING AN ELECTROLYSIS CELL, ITS APPLICATION TO THE PRODUCTION OF CHLORINE AND SODA BY ELECTROLYSIS OF SODIUM CHLORIDE IN SOLUTION
GB8805991D0 (en) * 1988-03-14 1988-04-13 Ici Plc Electrochemical cell
EP0410946B1 (en) * 1989-07-24 1994-05-04 Tanaka Kikinzoku Kogyo K.K. Decomposition of detrimental substances
EP0540179B1 (en) * 1991-10-01 1998-08-26 Michael A. Silveri Electrolytic pool purifier
US5376240A (en) * 1991-11-04 1994-12-27 Olin Corporation Process for the removal of oxynitrogen species for aqueous solutions
NO931689L (en) * 1993-05-10 1994-11-11 Sigurd Fongen Apparatus for electrochemical synthesis for "in-line" and "off-line" bleaching, oxidation and disinfection of organic substances in liquids.
ES2080686B1 (en) 1994-02-16 1996-10-16 S E De Carburos Metalicos S A ELECTROLYTIC DEPURATION PROCESS AND EQUIPMENT IN CONTAMINATED WASTEWATER USING OXYGEN CATODES.
DE19512955C2 (en) * 1995-04-10 1998-09-10 Ernst A Prof Dr Stadlbauer Water treatment process for the reductive conversion of nitrate and nitrite into elemental nitrogen
ID30239A (en) * 1998-12-07 2001-11-15 Zappi Water Purification Syste ELECTROLITICAL APARATUS, METHOD FOR PURIFICATION OF WATER SOLUTION AND CHEMICAL SYSTEMS

Also Published As

Publication number Publication date
BR9915992A (en) 2001-09-04
CA2355346A1 (en) 2000-06-15
MXPA01005705A (en) 2003-07-14
AP2001002197A0 (en) 2001-09-30
CZ20012002A3 (en) 2002-05-15
EP1150921A4 (en) 2003-06-18
SK7672001A3 (en) 2001-12-03
OA11806A (en) 2005-08-10
ID30239A (en) 2001-11-15
HUP0104664A2 (en) 2002-03-28
AU3112000A (en) 2000-06-26
AU767548B2 (en) 2003-11-13
TW490444B (en) 2002-06-11
NO20012804L (en) 2001-06-07
BG105679A (en) 2002-06-28
CN1329576A (en) 2002-01-02
IS5954A (en) 2001-05-29
NO20012804D0 (en) 2001-06-07
IL143529A0 (en) 2002-04-21
CA2355346C (en) 2004-07-20
TR200101659T2 (en) 2001-10-22
EE200100303A (en) 2002-08-15
JP2002531704A (en) 2002-09-24
EP1150921A1 (en) 2001-11-07
NZ512645A (en) 2002-10-25
WO2000034184A1 (en) 2000-06-15

Similar Documents

Publication Publication Date Title
PL348151A1 (en) Electrolytic apparatus, methods for purification of aqueous solutions and synthesis of chemicals
HUP0105300A3 (en) Process for selective oxidation of cellulose
HUP9700038A2 (en) Method for the electrolysis of aqueous solution of hydrochloric acid
AU1931499A (en) Electrolytic process for treating aqueous waste streams
AP2003002875A0 (en) Apparatus and method for treatment of water.
PL340206A1 (en) Effluent water treatment, method and apparatus
GB9622111D0 (en) Electrolytic treatment of aqueous salt solutions
PL342616A1 (en) Method of purifying process water
GB9918458D0 (en) Method and apparatus for the electrochemical processing of aqueous salt solutions
EG22451A (en) Purification process
IL137697A0 (en) Water purification apparatus
GB9908550D0 (en) Process for the purification of brines
AU6740998A (en) Apparatus for the electrochemical treatment of water and aqueous salt solutions
HUP0202345A3 (en) Method of purifying water, suitable bacteria for the method and use thereof
AU3991699A (en) Electrodes for electrolytic removal of nitrates from water, methods of making same, and apparatus incorporating said electrodes
HUP0101995A3 (en) Method for treatment of aqueous streams comprising biosolids
GB9800656D0 (en) Improved purification process
GB2350311B (en) Electro-chemical water treating apparatus
GB2389182B (en) Method of purifying b-secretase
MXPA01010987A (en) Method, apparatus and use of chelating agents for the purification of calcium sulphate.
GB9800657D0 (en) Improved purification process
SG65750A1 (en) Process for purifying an aqueous solutions of hydrogen peroxide
FI990954A7 (en) Method and apparatus for removing oxygen from water or aqueous solution
PL336551A1 (en) Method of decomposing 10-chloro-5,10-dihydrophednarsazine
GB9808619D0 (en) Chemical process