WO1996000190A1 - Method and apparatus for photocatalytic oxidation of water-borne chemical species - Google Patents
Method and apparatus for photocatalytic oxidation of water-borne chemical species Download PDFInfo
- Publication number
- WO1996000190A1 WO1996000190A1 PCT/AU1995/000373 AU9500373W WO9600190A1 WO 1996000190 A1 WO1996000190 A1 WO 1996000190A1 AU 9500373 W AU9500373 W AU 9500373W WO 9600190 A1 WO9600190 A1 WO 9600190A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- chemical species
- ultraviolet light
- source
- tank
- Prior art date
Links
- 239000013626 chemical specie Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000003647 oxidation Effects 0.000 title description 5
- 238000007254 oxidation reaction Methods 0.000 title description 5
- 230000001699 photocatalysis Effects 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003863 metallic catalyst Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000002917 insecticide Chemical class 0.000 description 1
- 239000000575 pesticide Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3221—Lamps suspended above a water surface or pipe
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Definitions
- the present invention relates to the purification I of contaminated water, and in particular an improved method 5 and apparatus for photocatalytic oxidation of water borne chemical species, for example, microtoxins, phenolic compounds, and pesticide and insecticide compounds.
- the invention therefore envisages a method of
- the invention also envisages an apparatus for
- said apparatus comprising means to provide an inclined surface of metallic catalyst, and a source of ultraviolet light.
- Figure 1 is a schematic plan view of the apparatus of the preferred embodiment and to carry out the method of the preferred embodiment.
- Figure 2 is a schematic side elevational view of the apparatus of Figure 1, and
- FIG. 3 is an enlarged view of the catalytic surface of the embodiment of Figures 1 and 2.
- the apparatus comprises an inclined trough 11 which contains an undulating member 12 providing a series of transverse ridges, and consisting of an outer layer 13 of a metallic catalyst supported as a thin film on a backing 14 of glass fibre matting or glass fibre weave, or any other material which provides a suitable backing.
- the trough 11 terminates at its lower end above an open topped tank 15 into which water gravitating down the trough on the metallic catalyst surface is delivered.
- Water in the tank 15 is drawn through a transfer pipe 16 by a pump 17 which pumps the water up through a supply pipe 18, containing a flow control valve 19, to a header manifold 20 from which the water flows to the top of the trough 11 and down the trough to the tank 15.
- the ridges provided by the undulating member 12 assisting generating turbulence in the flow of water down the trough which assists the photocatalytic oxidation of the chemical species in the contaminated water, whilst if a single pass down the trough is not sufficient to destroy and remove the chemical species, the water can be circulated around the system as many times as are necessary to achieve the desired result.
- a lamp 21 providing a source of ultraviolet light is positioned above and parallel to the trough, and extends along substantially the full length of the trough.
- sunlight may be used to provide a natural source of ultraviolet light when water purification during daylight hours is acceptable.
- a metallic catalyst of titanium dioxide antaese has been found to be an effective metallic catalyst, although other metallic catalysts may be effective to the same or lesser extent.
Landscapes
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU27797/95A AU709825B2 (en) | 1994-06-27 | 1995-06-26 | Water Purification |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPM6460 | 1994-06-27 | ||
AUPM6460A AUPM646094A0 (en) | 1994-06-27 | 1994-06-27 | An improved method for the photocatalytic oxidation of water borne chemical species |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996000190A1 true WO1996000190A1 (en) | 1996-01-04 |
Family
ID=3781029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1995/000373 WO1996000190A1 (en) | 1994-06-27 | 1995-06-26 | Method and apparatus for photocatalytic oxidation of water-borne chemical species |
Country Status (3)
Country | Link |
---|---|
AU (1) | AUPM646094A0 (en) |
CA (1) | CA2193643A1 (en) |
WO (1) | WO1996000190A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970006143A (en) * | 1995-07-06 | 1997-02-19 | 베르서 리베르크네흐트 | Method and apparatus for cross winding windings on yarn or band |
EP0993859A1 (en) * | 1998-09-18 | 2000-04-19 | Hitachi Metals, Ltd. | Three-dimensional, photocatalytic filter apparatus |
FR2819799A1 (en) * | 2001-01-22 | 2002-07-26 | Ahlstrom Res And Competence Ct | Treating liquid effluents, especially waste water containing oils or waxes, comprises solid-liquid and/or liquid-liquid separation and photocatalytic steps |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60118289A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Water purifying method |
JPS60118236A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Molded photo-oxidation catalyst body |
AU7602887A (en) * | 1986-07-22 | 1988-01-28 | Commonwealth Scientific And Industrial Research Organisation | Coating photoactive metal oxides onto substrates |
WO1989002418A1 (en) * | 1987-09-08 | 1989-03-23 | Simmering-Graz-Pauker Aktiengesellschaft | Process and device for purifying liquids |
US4863608A (en) * | 1986-02-20 | 1989-09-05 | Nomura Micro Science Co., Ltd. | Photocatalytic treatment of water for the preparation of ultra pure water |
JPH02251241A (en) * | 1989-03-22 | 1990-10-09 | Matsushita Electric Ind Co Ltd | Photocatalyst apparatus |
EP0417847A1 (en) * | 1989-09-15 | 1991-03-20 | ENIRICERCHE S.p.A. | Method for the heterogeneous catalytic photodegradation of pollutants |
JPH03193191A (en) * | 1989-12-25 | 1991-08-22 | Matsushita Electric Ind Co Ltd | Method for purifying drinking water |
JPH04114791A (en) * | 1990-09-03 | 1992-04-15 | Suishiyou:Kk | Drinking water container having organic halogen compound-decomposing function |
GB2252707A (en) * | 1991-02-09 | 1992-08-12 | Tioxide Group Services Ltd | Decomposition of organic material by ultraviolet light |
JPH05154473A (en) * | 1991-12-06 | 1993-06-22 | Nippon Fuoto Sci:Kk | Photochemical reaction treatment for fluid |
JPH05309267A (en) * | 1992-05-11 | 1993-11-22 | Japan Storage Battery Co Ltd | Photocatalyst body |
JPH05337460A (en) * | 1992-06-09 | 1993-12-21 | Sanden Corp | Water purifier |
JPH0671256A (en) * | 1992-08-31 | 1994-03-15 | Nomura Micro Sci Kk | Method for purifying water |
JPH06170360A (en) * | 1992-12-08 | 1994-06-21 | Japan Storage Battery Co Ltd | Method for decomposing malodorous and distasteful substance |
AU6244194A (en) * | 1993-02-23 | 1994-09-14 | Anatel Corporation | Apparatus for removal of organic material from water |
AU6618694A (en) * | 1993-07-12 | 1995-01-19 | Ishihara Sangyo Kaisha Ltd. | Photocatalyst and process for purifying water with same |
-
1994
- 1994-06-27 AU AUPM6460A patent/AUPM646094A0/en not_active Abandoned
-
1995
- 1995-06-26 CA CA002193643A patent/CA2193643A1/en not_active Abandoned
- 1995-06-26 WO PCT/AU1995/000373 patent/WO1996000190A1/en active Application Filing
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60118289A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Water purifying method |
JPS60118236A (en) * | 1983-11-30 | 1985-06-25 | Giken Kogyo Kk | Molded photo-oxidation catalyst body |
US4863608A (en) * | 1986-02-20 | 1989-09-05 | Nomura Micro Science Co., Ltd. | Photocatalytic treatment of water for the preparation of ultra pure water |
AU7602887A (en) * | 1986-07-22 | 1988-01-28 | Commonwealth Scientific And Industrial Research Organisation | Coating photoactive metal oxides onto substrates |
WO1989002418A1 (en) * | 1987-09-08 | 1989-03-23 | Simmering-Graz-Pauker Aktiengesellschaft | Process and device for purifying liquids |
JPH02251241A (en) * | 1989-03-22 | 1990-10-09 | Matsushita Electric Ind Co Ltd | Photocatalyst apparatus |
EP0417847A1 (en) * | 1989-09-15 | 1991-03-20 | ENIRICERCHE S.p.A. | Method for the heterogeneous catalytic photodegradation of pollutants |
JPH03193191A (en) * | 1989-12-25 | 1991-08-22 | Matsushita Electric Ind Co Ltd | Method for purifying drinking water |
JPH04114791A (en) * | 1990-09-03 | 1992-04-15 | Suishiyou:Kk | Drinking water container having organic halogen compound-decomposing function |
GB2252707A (en) * | 1991-02-09 | 1992-08-12 | Tioxide Group Services Ltd | Decomposition of organic material by ultraviolet light |
JPH05154473A (en) * | 1991-12-06 | 1993-06-22 | Nippon Fuoto Sci:Kk | Photochemical reaction treatment for fluid |
JPH05309267A (en) * | 1992-05-11 | 1993-11-22 | Japan Storage Battery Co Ltd | Photocatalyst body |
JPH05337460A (en) * | 1992-06-09 | 1993-12-21 | Sanden Corp | Water purifier |
JPH0671256A (en) * | 1992-08-31 | 1994-03-15 | Nomura Micro Sci Kk | Method for purifying water |
JPH06170360A (en) * | 1992-12-08 | 1994-06-21 | Japan Storage Battery Co Ltd | Method for decomposing malodorous and distasteful substance |
AU6244194A (en) * | 1993-02-23 | 1994-09-14 | Anatel Corporation | Apparatus for removal of organic material from water |
AU6618694A (en) * | 1993-07-12 | 1995-01-19 | Ishihara Sangyo Kaisha Ltd. | Photocatalyst and process for purifying water with same |
Non-Patent Citations (10)
Title |
---|
DERWENT ABSTRACT, Accession No. 85-188031/31, Class D15; & JP,A,60 118 236 (GIKEN KOGYO KK), 25 June 1985. * |
DERWENT ABSTRACT, Accession No. 85-188044/31, Class D15; & JP,A,60 118 289 (GIKEN KOGYO KK), 25 June 1985. * |
DERWENT ABSTRACT, Accession No. 90-345951/46, Class D15; & JP,A,02 251 241 (MATSUSHITA ELEC IND KK), 9 October 1990. * |
DERWENT ABSTRACT, Accession No. 91-291431/40, Class D15; & JP,A,03 193 191 (MATSUSHITA ELEC IND KK), 28 August 1991. * |
DERWENT ABSTRACT, Accession No. 92-178958/22, Class D15; & JP,A,04 114 791 (SWISHO Y K), 15 April 1992. * |
DERWENT ABSTRACT, Accession No. 93-231705/29, Class P34; & JP,A,05 154 473 (NIPPON PHOTOSCIENCE KK), 22 June 1993. * |
DERWENT ABSTRACT, Accession No. 93-410245/51, Class D15; & JP,A,05 309 267 (JAPAN STORAGE BATTERY CO LTD), 22 November 1993. * |
DERWENT ABSTRACT, Accession No. 94-031087/04, Class D15; & JP,A,05 337 460 (SANDEN CORP), 21 December 1993. * |
DERWENT ABSTRACT, Accession No. 94-123499/15, Class D15; & JP,A,06 071 256 (NOMURA MICRO SCI KK), 15 March 1994. * |
DERWENT ABSTRACT, Accession No. 94-237846/29, Class D15; & JP,A,06 170 360 (JAPAN STORAGE BATTERY CO LTD), 21 June 1994. * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR970006143A (en) * | 1995-07-06 | 1997-02-19 | 베르서 리베르크네흐트 | Method and apparatus for cross winding windings on yarn or band |
EP0993859A1 (en) * | 1998-09-18 | 2000-04-19 | Hitachi Metals, Ltd. | Three-dimensional, photocatalytic filter apparatus |
US6238631B1 (en) | 1998-09-18 | 2001-05-29 | Tao Inc. | Three-dimensional, photocatalytic filter apparatus |
FR2819799A1 (en) * | 2001-01-22 | 2002-07-26 | Ahlstrom Res And Competence Ct | Treating liquid effluents, especially waste water containing oils or waxes, comprises solid-liquid and/or liquid-liquid separation and photocatalytic steps |
Also Published As
Publication number | Publication date |
---|---|
AUPM646094A0 (en) | 1994-07-21 |
CA2193643A1 (en) | 1996-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6447677B2 (en) | Dual filter | |
US6451209B1 (en) | Method and a system for the treatment of water | |
van Well et al. | A novel nonconcentrating reactor for solar water detoxification | |
JP3430183B2 (en) | Membrane separation biological treatment method | |
US20130180931A1 (en) | Solar-activated photochemical fluid treatment | |
JPH10249210A (en) | Photocatalyst, its manufacture and applications | |
US5470460A (en) | Apparatus for the purification of cyanide-containing waste water | |
WO1996000190A1 (en) | Method and apparatus for photocatalytic oxidation of water-borne chemical species | |
JP3527338B2 (en) | Water treatment equipment | |
AU709825B2 (en) | Water Purification | |
JPH0526187U (en) | Ultraviolet irradiation device for photochemical reaction treatment | |
KR20030013233A (en) | Aquarium purifier using photocatalytic decomposer | |
JPH10249336A (en) | Water treating method and water treating device using photocatalyst | |
JP3792577B2 (en) | Water treatment equipment using photocatalyst | |
JPH09155160A (en) | Apparatus for decomposing and removing volatile organic compound and method therefor | |
AU1637001A (en) | Water treatment | |
JPH063494U (en) | Fluid photochemical reaction processor | |
DE4436134C2 (en) | Transportable water treatment system for medium-term drinking water supply | |
JP3358826B2 (en) | Photocatalyst for treating toxic substances in liquids and equipment for treating toxic substances in liquids | |
JP2001136849A (en) | Method for hydroponics/aerial culture, and device therefor | |
JP2000157991A (en) | Contact filter medium and waste water treating device | |
JP2001121147A (en) | Membrane separation purifying apparatus | |
CN110078197A (en) | It is a kind of for handle fish pond, pond, container quality purifying device for water | |
EP2399871A2 (en) | Reactor and plant for abating nitrogen present in livestock and industrial effluents | |
JP4554791B2 (en) | Water treatment apparatus and water treatment method for water use facility |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2193643 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 1996 750868 Country of ref document: US Date of ref document: 19961227 Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |