FR2432483A1 - Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed - Google Patents

Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed

Info

Publication number
FR2432483A1
FR2432483A1 FR7823648A FR7823648A FR2432483A1 FR 2432483 A1 FR2432483 A1 FR 2432483A1 FR 7823648 A FR7823648 A FR 7823648A FR 7823648 A FR7823648 A FR 7823648A FR 2432483 A1 FR2432483 A1 FR 2432483A1
Authority
FR
France
Prior art keywords
liq
contg
gas
catalytic bed
ozone
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.)
Withdrawn
Application number
FR7823648A
Other languages
French (fr)
Inventor
Serge Lambert
Jean Boutin
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.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
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 Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Priority to FR7823648A priority Critical patent/FR2432483A1/en
Publication of FR2432483A1 publication Critical patent/FR2432483A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1294—"Venturi" aeration means
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

The process comprises circulating the water in a zone in which an ozonised gas is drawn into the atmos. surrounding the liq. flow and after mixing, the gas/liq. mixt. is passed through a catalytic bed, at least a part of the outflow being recycled to the aspirating zone. The liq. is pref. passed through an appts. which gives a pressure-drop, esp. a gas/liq. ejector such as water pump, venturi etc. The ozonised gas is pref. ozonised air, oxygen or oxygen enriched air contg. 1-60 g./m3 O3, esp. 5-40 g./m3. The process is an improvement on known ozone treatments giving high ozonisation and purificn. yields.
FR7823648A 1978-08-02 1978-08-02 Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed Withdrawn FR2432483A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7823648A FR2432483A1 (en) 1978-08-02 1978-08-02 Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7823648A FR2432483A1 (en) 1978-08-02 1978-08-02 Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed

Publications (1)

Publication Number Publication Date
FR2432483A1 true FR2432483A1 (en) 1980-02-29

Family

ID=9211758

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823648A Withdrawn FR2432483A1 (en) 1978-08-02 1978-08-02 Treating impure water with ozone in closed circuit - contg. aspirating zone followed by catalytic bed

Country Status (1)

Country Link
FR (1) FR2432483A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484862A1 (en) * 1980-06-18 1981-12-24 Inst Nat Rech Chimique Injector for contacting gas with liq. to form emulsion - injects high speed gas co-current at low angle of incidence
EP0103144A2 (en) * 1982-08-20 1984-03-21 Messer Griesheim Gmbh Process for producing ozone
US5192452A (en) * 1988-07-12 1993-03-09 Nippon Shokubai Kagaku Kogyo, Co., Ltd. Catalyst for water treatment
BE1005820A3 (en) * 1992-05-15 1994-02-08 Engineering De Wit Afgekort E Device for treating silt in wastewater
EP0656322A1 (en) * 1992-07-20 1995-06-07 KRÜGER, Gerhard Purification system
WO2000001624A1 (en) * 1998-07-02 2000-01-13 Braun Gmbh Electrical household appliance for purifying water intermittently or in portions
CN104386801A (en) * 2014-12-12 2015-03-04 北京格兰特膜分离设备有限公司 Gas-stripping circulating catalytic ozonation reaction device and advanced wastewater treatment method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484862A1 (en) * 1980-06-18 1981-12-24 Inst Nat Rech Chimique Injector for contacting gas with liq. to form emulsion - injects high speed gas co-current at low angle of incidence
EP0103144A2 (en) * 1982-08-20 1984-03-21 Messer Griesheim Gmbh Process for producing ozone
EP0103144A3 (en) * 1982-08-20 1986-12-10 Messer Griesheim Gmbh Process for producing ozone
US5192452A (en) * 1988-07-12 1993-03-09 Nippon Shokubai Kagaku Kogyo, Co., Ltd. Catalyst for water treatment
BE1005820A3 (en) * 1992-05-15 1994-02-08 Engineering De Wit Afgekort E Device for treating silt in wastewater
EP0656322A1 (en) * 1992-07-20 1995-06-07 KRÜGER, Gerhard Purification system
WO2000001624A1 (en) * 1998-07-02 2000-01-13 Braun Gmbh Electrical household appliance for purifying water intermittently or in portions
CN104386801A (en) * 2014-12-12 2015-03-04 北京格兰特膜分离设备有限公司 Gas-stripping circulating catalytic ozonation reaction device and advanced wastewater treatment method

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Legal Events

Date Code Title Description
ST Notification of lapse