WO2001042144A3 - Device and method for treating water with ozone generated by water electrolysis - Google Patents

Device and method for treating water with ozone generated by water electrolysis Download PDF

Info

Publication number
WO2001042144A3
WO2001042144A3 PCT/CA2000/001485 CA0001485W WO0142144A3 WO 2001042144 A3 WO2001042144 A3 WO 2001042144A3 CA 0001485 W CA0001485 W CA 0001485W WO 0142144 A3 WO0142144 A3 WO 0142144A3
Authority
WO
WIPO (PCT)
Prior art keywords
ozone
water
situ
pollutants
wavelength
Prior art date
Application number
PCT/CA2000/001485
Other languages
French (fr)
Other versions
WO2001042144A2 (en
Inventor
Amir Salama
Original Assignee
Amir Salama
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 Amir Salama filed Critical Amir Salama
Priority to MXPA02005737A priority Critical patent/MXPA02005737A/en
Priority to AU21361/01A priority patent/AU771550B2/en
Priority to DE60004268T priority patent/DE60004268T2/en
Priority to NZ519310A priority patent/NZ519310A/en
Priority to AT00984716T priority patent/ATE246151T1/en
Priority to EP00984716A priority patent/EP1242312B1/en
Priority to IL14999900A priority patent/IL149999A/en
Priority to JP2001543450A priority patent/JP4471551B2/en
Priority to BRPI0016481-0A priority patent/BR0016481B1/en
Publication of WO2001042144A2 publication Critical patent/WO2001042144A2/en
Publication of WO2001042144A3 publication Critical patent/WO2001042144A3/en

Links

Classifications

    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • 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
    • 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
    • C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • 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
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/328—Having flow diverters (baffles)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Physical Water Treatments (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

A process and a device for the treatment of water, especially for removing therefrom a large variety of pollutants, especially organic, inorganic and biological pollutants through in situ generation of ozone. Ozone is economically produced in situ) at a high concentration through the interaction of electrolytically produce oxygen and UV light having a wavelength of 189 nm. The device has a set of anode and cathode for electrolytically producing nascent oxygen which reacts with UV light at a wavelength of 189 nm to produce ozone 'in situ' within a vessel where the polluted water is submitted to the combinative action of ozone and other oxidation reactions. The device also has a hydrocyclone or retention tank of removing cationic pollutants such as heavy metals, free radicals as well as undesirable electrolysis by-products such as nascent hydrogen through a secondary outlet. Oxidation by-products are subsequently removed from the exiting water stream by means of decantation, flocculation, coagulation or filtration.
PCT/CA2000/001485 1999-12-10 2000-12-11 Device and method for treating water with ozone generated by water electrolysis WO2001042144A2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
MXPA02005737A MXPA02005737A (en) 1999-12-10 2000-12-11 Device and method for treating water with ozone generated by water electrolysis.
AU21361/01A AU771550B2 (en) 1999-12-10 2000-12-11 Device and method for treating water with ozone generated by water electrolysis
DE60004268T DE60004268T2 (en) 1999-12-10 2000-12-11 DEVICE AND METHOD FOR TREATING WATER WITH OZONE PRODUCED BY ELECTROLYSIS
NZ519310A NZ519310A (en) 1999-12-10 2000-12-11 Device and method for treating water with ozone generated by ultra violet (UV) light and water electrolysis
AT00984716T ATE246151T1 (en) 1999-12-10 2000-12-11 DEVICE AND METHOD FOR TREATING WATER WITH OZONE PRODUCED BY ELECTROLYSIS
EP00984716A EP1242312B1 (en) 1999-12-10 2000-12-11 Device and method for treating water with ozone generated by water electrolysis
IL14999900A IL149999A (en) 1999-12-10 2000-12-11 Device and method for treating water with ozone generated by water electrolysis
JP2001543450A JP4471551B2 (en) 1999-12-10 2000-12-11 Apparatus and method for treating water with ozone generated by electrolysis of water
BRPI0016481-0A BR0016481B1 (en) 1999-12-10 2000-12-11 water purifying device, and method for treating water with ozone generated by water electrolysis.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/458,681 US6180014B1 (en) 1999-12-10 1999-12-10 Device and method for treating water with ozone generated by water electrolysis
US09/458,681 1999-12-10

Publications (2)

Publication Number Publication Date
WO2001042144A2 WO2001042144A2 (en) 2001-06-14
WO2001042144A3 true WO2001042144A3 (en) 2001-12-06

Family

ID=23821698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2000/001485 WO2001042144A2 (en) 1999-12-10 2000-12-11 Device and method for treating water with ozone generated by water electrolysis

Country Status (18)

Country Link
US (1) US6180014B1 (en)
EP (1) EP1242312B1 (en)
JP (1) JP4471551B2 (en)
CN (1) CN1177766C (en)
AP (1) AP1531A (en)
AT (1) ATE246151T1 (en)
AU (1) AU771550B2 (en)
BR (1) BR0016481B1 (en)
CA (1) CA2328045C (en)
DE (1) DE60004268T2 (en)
ES (1) ES2203541T3 (en)
IL (1) IL149999A (en)
MX (1) MXPA02005737A (en)
NZ (1) NZ519310A (en)
OA (1) OA12119A (en)
PT (1) PT1242312E (en)
WO (1) WO2001042144A2 (en)
ZA (1) ZA200203788B (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6736966B2 (en) * 1999-05-25 2004-05-18 Miox Corporation Portable water disinfection system
US7297268B2 (en) 1999-05-25 2007-11-20 Miox Corporation Dual head pump driven filtration system
US7244357B2 (en) * 1999-05-25 2007-07-17 Miox Corporation Pumps for filtration systems
US6180014B1 (en) * 1999-12-10 2001-01-30 Amir Salama Device and method for treating water with ozone generated by water electrolysis
FR2809420B1 (en) * 2000-05-24 2002-08-02 Electricite De France PROCESS AND DEVICE FOR DEGRADATION OF ORGANIC COMPOUNDS IN AQUEOUS SOLUTION BY VUV PHOTOLYSIS OF WATER AND ELECTROCHEMICAL PRODUCTION OF DIOXYGEN
US6833115B2 (en) * 2000-11-21 2004-12-21 Canon Kabushiki Kaisha Method of decomposing pollutants and apparatus for the same
US6511638B2 (en) 2001-03-29 2003-01-28 Robert De La Torre Stone Apparatus and method for generating ozone
CA2448758A1 (en) * 2001-05-30 2002-12-05 Hydro Municipal Technologies, Ltd. A fluid treatment apparatus
US7008523B2 (en) * 2001-07-16 2006-03-07 Miox Corporation Electrolytic cell for surface and point of use disinfection
US7005075B2 (en) * 2001-07-16 2006-02-28 Miox Corporation Gas drive electrolytic cell
KR20030046621A (en) * 2001-12-16 2003-06-18 한국전자통신연구원 Method for seting communication environment of smart card and mobile entity using layered protocol stack with selective multiple transmission protocols
US7473374B2 (en) * 2002-05-30 2009-01-06 Ralph Suddath Fluid treatment apparatus
WO2004046042A2 (en) * 2002-11-19 2004-06-03 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
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
US20040222165A1 (en) * 2003-05-08 2004-11-11 Kraft Foods Holdings, Inc. Flexible film packaging for use with ozone sterilization applications
US7326330B2 (en) * 2004-06-10 2008-02-05 Miox Corporation Method and apparatus for scale and biofilm control
US7482591B2 (en) * 2004-09-22 2009-01-27 Miox Corporation Carbonate scale detector
US7837951B2 (en) * 2005-01-05 2010-11-23 Gsg Holdings, Inc. Modular ozone generator with an air diffuser
JP3733136B1 (en) * 2005-06-30 2006-01-11 東フロコーポレーション株式会社 Dissolved ozonolysis unit
CA2547183A1 (en) * 2006-05-17 2007-11-17 Ozomax Inc. Portable ozone generator for purifying water and use thereof
CA2547373A1 (en) * 2006-05-18 2007-11-18 Ozomax Inc. Miniature ozone generator with internal or external power supply for purifiying water
CN100443418C (en) * 2006-06-07 2008-12-17 哈尔滨工业大学 Catalytic ozonization water treatment method
CA2593954C (en) * 2006-08-07 2011-01-04 Sanyo Electric Co., Ltd. Air filtering apparatus
DE102006038809A1 (en) 2006-08-18 2008-02-21 Basf Construction Polymers Gmbh Water-soluble and biodegradable polyamide-based copolymers and their use
WO2009002915A1 (en) * 2007-06-22 2008-12-31 Steward Environmental Solutions, Llc System amd methods for the removal of soft heavy metals from streams
CA2607713C (en) 2007-11-14 2009-05-26 Dagua Inc. Water treatment apparatus
JP2009154030A (en) * 2007-12-25 2009-07-16 Mikuni Corp Electrolytic water generating and spraying device
WO2009143184A2 (en) * 2008-05-19 2009-11-26 Miox Corporation Electrolytic cell with gas driven pumping
US20100032015A1 (en) * 2008-08-07 2010-02-11 Bokhary Tariq I System and method for generating power from solar radiation
KR101036834B1 (en) 2009-05-19 2011-05-25 대구대학교 산학협력단 Electrolytic Cell for purifying water
EP2598444B1 (en) * 2010-07-26 2015-10-14 Koninklijke Philips N.V. Device for subjecting a fluid to a disinfecting treatment by exposing the fluid to ultraviolet light
CN102092854B (en) * 2010-11-26 2012-05-23 中国科学院海洋研究所 Water treatment bioreactor
GB201100175D0 (en) * 2011-01-07 2011-02-23 Veolia Water Solutions & Tech Wastewater treatment apparatus and method
ES2373601B1 (en) * 2011-10-14 2013-02-08 I.D. Electroquímica, S.L. WATER CLEANING PROCEDURE WITHOUT SALT CONTRIBUTION AND WATER CLEANING REACTOR.
MX2014006561A (en) 2011-12-02 2014-09-22 Aquamost Inc Apparatus and method for treating aqueous solutions and contaminants therein.
US8398828B1 (en) 2012-01-06 2013-03-19 AquaMost, Inc. Apparatus and method for treating aqueous solutions and contaminants therein
CA3085086C (en) 2011-12-06 2023-08-08 Delta Faucet Company Ozone distribution in a faucet
US9045357B2 (en) 2012-01-06 2015-06-02 AquaMost, Inc. System for reducing contaminants from a photoelectrocatalytic oxidization apparatus through polarity reversal and method of operation
EP2953903A4 (en) 2013-02-11 2017-01-04 AquaMost, Inc. Apparatus and method for treating aqueous solutions and contaminants therein
KR101318604B1 (en) * 2013-05-15 2013-10-15 고영남 Micro bubble sterilizer
WO2015054214A1 (en) * 2013-10-07 2015-04-16 AquaMost, Inc. System and method for treating aqueous solutions and contaminants therein
WO2015063581A1 (en) * 2013-11-04 2015-05-07 Intellectual Property Limited Heavy metal and chemical destructor
EA029882B1 (en) * 2014-09-12 2018-05-31 Владимир Владимирович ГАШИНСКИЙ Water purification and disinfection device
CA2968405C (en) 2014-12-09 2022-08-09 Johnson Matthey Public Limited Company Methods for the direct electrolytic production of stable, high concentration aqueous halosulfamate or halosulfonamide solutions
DE102015220424A1 (en) * 2015-10-20 2017-04-20 Robert Bosch Gmbh Disinfecting device, method for disinfecting household appliances and use of a disinfecting device
WO2017079672A1 (en) * 2015-11-06 2017-05-11 Unlimited Water Solutions Llc Electronic water pre-treatment equipment and methods
WO2017112795A1 (en) 2015-12-21 2017-06-29 Delta Faucet Company Fluid delivery system including a disinfectant device
CN106637111B (en) * 2016-10-21 2019-02-01 中南大学 A kind of niobium base boron-doped diamond foam electrode and the preparation method and application thereof
CN107344791B (en) * 2016-05-06 2020-08-18 上海京明环境科技有限公司 Equipment and method for treating high-salinity high-organic wastewater by electromagnetic technology
IT201800004155A1 (en) * 2018-03-30 2019-09-30 Consiglio Nazionale Ricerche Method and plant for the purification of wax of animal origin from unwanted chemicals
JP7463409B2 (en) * 2019-06-12 2024-04-08 ニュークアティック エルエルシー Removal of substances from water
US11097961B1 (en) * 2019-07-26 2021-08-24 John D. Jones Engineering, Inc. Pharmaionizer system
CN114680348B (en) * 2020-12-31 2023-11-03 广东美的白色家电技术创新中心有限公司 Cleaning device
JP2024030687A (en) * 2022-08-25 2024-03-07 株式会社日立製作所 Water treatment system and water treatment method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137607A (en) * 1990-04-27 1992-08-11 Wisconsin Alumni Research Foundation Reactor vessel using metal oxide ceramic membranes
US5395522A (en) * 1993-02-23 1995-03-07 Anatel Corporation Apparatus for removal of organic material from water
US5613239A (en) * 1995-10-02 1997-03-18 Morikawa Industries Corp. Method and apparatus for decomposing organic solutions composed of chelating solutions and/or organic acids containing radioactive metal ions and collection method and apparatus using the same
WO1999001382A1 (en) * 1997-07-01 1999-01-14 Axonics Limited Method and apparatus for decontamination of fluids
JP2000051863A (en) * 1998-08-05 2000-02-22 Mitsubishi Heavy Ind Ltd Harmful substance treatment method and apparatus
US6180014B1 (en) * 1999-12-10 2001-01-30 Amir Salama Device and method for treating water with ozone generated by water electrolysis

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623970A (en) 1968-01-30 1971-11-30 Georg Haas Compact ozonizer for water lines
EP0068522B1 (en) 1981-05-11 1984-10-24 BBC Aktiengesellschaft Brown, Boveri & Cie. Process and apparatus for the synthetic preparation of ozone by electrolysis, and its application
DE3232802A1 (en) * 1982-09-03 1984-03-08 Alfred Prof. Dr.-Ing. 7830 Emmendingen Walz METHOD AND DEVICE FOR PRODUCING ULTRAVIOLETTER RADIATION
US4728441A (en) 1986-09-12 1988-03-01 King Arthur S Electrical waste water treatment system employing oxygen recovery and ozone injection means
JPH0293088A (en) 1988-09-29 1990-04-03 Permelec Electrode Ltd Method and device for water electrolysis
JPH0813356B2 (en) 1988-09-29 1996-02-14 ペルメレック電極株式会社 Water treatment method and apparatus using electrolytic ozone
JP3048612B2 (en) 1990-09-06 2000-06-05 ペルメレック電極株式会社 Electrolytic ozone generator
JP3007137B2 (en) 1990-11-27 2000-02-07 ペルメレック電極株式会社 Electrolytic ozone generation method and apparatus
US5686051A (en) 1994-11-11 1997-11-11 Kabushiki Kaisha Kobe Seiko Sho Ozone water production apparatus
DE29504323U1 (en) 1995-03-17 1996-07-25 Schulze Dirk Electrolysis cell for the production of ozone or oxygen
US5494559A (en) 1995-06-08 1996-02-27 Patterson; James A. System for electrolysis

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137607A (en) * 1990-04-27 1992-08-11 Wisconsin Alumni Research Foundation Reactor vessel using metal oxide ceramic membranes
US5395522A (en) * 1993-02-23 1995-03-07 Anatel Corporation Apparatus for removal of organic material from water
US5613239A (en) * 1995-10-02 1997-03-18 Morikawa Industries Corp. Method and apparatus for decomposing organic solutions composed of chelating solutions and/or organic acids containing radioactive metal ions and collection method and apparatus using the same
WO1999001382A1 (en) * 1997-07-01 1999-01-14 Axonics Limited Method and apparatus for decontamination of fluids
JP2000051863A (en) * 1998-08-05 2000-02-22 Mitsubishi Heavy Ind Ltd Harmful substance treatment method and apparatus
US6180014B1 (en) * 1999-12-10 2001-01-30 Amir Salama Device and method for treating water with ozone generated by water electrolysis

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 200027, 22 February 2000 Derwent World Patents Index; AN 2000-306631, XP002164240 *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14) *

Also Published As

Publication number Publication date
AU2136101A (en) 2001-06-18
MXPA02005737A (en) 2003-10-14
CN1407951A (en) 2003-04-02
EP1242312B1 (en) 2003-07-30
US6180014B1 (en) 2001-01-30
ZA200203788B (en) 2003-07-30
DE60004268D1 (en) 2003-09-04
BR0016481A (en) 2002-09-10
CA2328045C (en) 2008-11-18
JP2003516229A (en) 2003-05-13
NZ519310A (en) 2003-07-25
ES2203541T3 (en) 2004-04-16
WO2001042144A2 (en) 2001-06-14
JP4471551B2 (en) 2010-06-02
DE60004268T2 (en) 2004-04-22
AP1531A (en) 2006-01-04
OA12119A (en) 2006-05-04
AU771550B2 (en) 2004-03-25
EP1242312A2 (en) 2002-09-25
IL149999A (en) 2005-07-25
BR0016481B1 (en) 2009-08-11
CN1177766C (en) 2004-12-01
PT1242312E (en) 2003-11-28
IL149999A0 (en) 2002-12-01
CA2328045A1 (en) 2001-06-10
AP2002002526A0 (en) 2002-06-30
ATE246151T1 (en) 2003-08-15

Similar Documents

Publication Publication Date Title
AP1531A (en) Device and method for treating water with ozone generated by water electrolysis.
CN106687417B (en) Method and apparatus for treating industrial waste water using oxidizing agent produced from waste water
Bernal-Martínez et al. Synergy of electrochemical and ozonation processes in industrial wastewater treatment
EP1702890B1 (en) Treatment of a waste stream through production and utilization of oxyhydrogen gas
US7837882B2 (en) Treatment of a waste stream through production and utilization of oxyhydrogen gas
EP2627607A1 (en) Treatment of a waste stream through production and utilization of oxyhydrogen gas
KR101071709B1 (en) Photo-Fenton oxidation reactor to remove 1,4-dioxane and method to remove 1,4-dioxane by Photo-Fenton oxidation
JP3560631B2 (en) Water treatment equipment
KR100542270B1 (en) Hydroxyl Radical Generator by Ozone, TiO2 Catalyst and Electrolysis
ITRM20110585A1 (en) WATER PURIFICATION PROCEDURE DERIVED FROM LANDFILL PERCOLATE
KR100297928B1 (en) Method of nitrogen removal in wastewater with photocatalytic technology
RU2104960C1 (en) Method for purification of sewage
JP3963529B2 (en) Method for treating sewage containing dioxin
JP3573322B2 (en) Method and apparatus for treating dioxin-containing wastewater
JPH1076296A (en) Treatment method for drainage containing poorly decomposable organic substance
JPH0952092A (en) Treatment of waste water
KR100754843B1 (en) Industrial waste water traement system
JP2537586B2 (en) Advanced treatment method of organic matter and its equipment
KR100467442B1 (en) A method of treatment for dyeing wastewater by using catalyst oxidizing water
Mahtab et al. Advanced Oxidation Processes and Their Applications
Poulopoulos et al. Removal of total organic carbon and color from astana municipal landfill leachate by uv-fenton, UV-H 2 O 2 and fenton reaction
Yo Three oxidation systems(O sub (3), H sub (2) O sub (2), H sub (2) O sub (2)/O sub (3)) for the secondary treatment wastewater of petrochemical plants
KR19980043481A (en) Hardly degradable organic material treatment method
JPH10165991A (en) Method for treating waste water containing biologically hardly decomposable organic matter
JPH0871547A (en) Water treatment method

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 2002/03788

Country of ref document: ZA

Ref document number: 200203788

Country of ref document: ZA

ENP Entry into the national phase

Ref document number: 2001 543450

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 519310

Country of ref document: NZ

WWE Wipo information: entry into national phase

Ref document number: 2000984716

Country of ref document: EP

Ref document number: 149999

Country of ref document: IL

WWE Wipo information: entry into national phase

Ref document number: 008167257

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: PA/a/2002/005737

Country of ref document: MX

Ref document number: IN/PCT/2002/00591/DE

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 21361/01

Country of ref document: AU

WWP Wipo information: published in national office

Ref document number: 2000984716

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 519310

Country of ref document: NZ

WWG Wipo information: grant in national office

Ref document number: 2000984716

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 519310

Country of ref document: NZ

WWG Wipo information: grant in national office

Ref document number: 21361/01

Country of ref document: AU

DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)