EP0938455A2 - Procede et dispositif d'epuration biologique d'eaux usees - Google Patents

Procede et dispositif d'epuration biologique d'eaux usees

Info

Publication number
EP0938455A2
EP0938455A2 EP97948783A EP97948783A EP0938455A2 EP 0938455 A2 EP0938455 A2 EP 0938455A2 EP 97948783 A EP97948783 A EP 97948783A EP 97948783 A EP97948783 A EP 97948783A EP 0938455 A2 EP0938455 A2 EP 0938455A2
Authority
EP
European Patent Office
Prior art keywords
oxygen
activated sludge
containing gas
wastewater
pure oxygen
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.)
Ceased
Application number
EP97948783A
Other languages
German (de)
English (en)
Inventor
Monica Hermans
Ulrich Hermanns
Sigurd Schlegel
Andreas Stein
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim GmbH
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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of EP0938455A2 publication Critical patent/EP0938455A2/fr
Ceased 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
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Activated Sludge Processes (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

Selon ce procédé d'épuration biologique d'eaux usées dans une installation de clarification équipée de bassins d'activation de plus de 5 m environ de profondeur, un gaz avec une teneur en oxygène supérieure à celle de l'air ou de l'oxygène pur est amené en continu ou temporairement au mélange d'eaux usées et de boues d'activation dans au moins une partie du volume aérobie du bassin d'activation.
EP97948783A 1996-10-31 1997-10-23 Procede et dispositif d'epuration biologique d'eaux usees Ceased EP0938455A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19644080 1996-10-31
DE1996144080 DE19644080A1 (de) 1996-10-31 1996-10-31 Verfahren und Vorrichtung zur biologischen Abwasserreinigung
PCT/EP1997/005847 WO1998018727A2 (fr) 1996-10-31 1997-10-23 Procede et dispositif d'epuration biologique d'eaux usees

Publications (1)

Publication Number Publication Date
EP0938455A2 true EP0938455A2 (fr) 1999-09-01

Family

ID=7809784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97948783A Ceased EP0938455A2 (fr) 1996-10-31 1997-10-23 Procede et dispositif d'epuration biologique d'eaux usees

Country Status (5)

Country Link
US (1) US6280624B1 (fr)
EP (1) EP0938455A2 (fr)
AU (1) AU6908198A (fr)
DE (1) DE19644080A1 (fr)
WO (1) WO1998018727A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059441A1 (de) * 2000-11-30 2002-06-20 Messer Griesheim Gmbh Verfahren zur Flotation von Wasser
DE10059897A1 (de) * 2000-12-01 2002-06-20 Messer Griesheim Gmbh Verfahren zur biologischen Reinigung von organisch belasteten Abwässern
DE10061486A1 (de) * 2000-12-09 2002-06-20 Messer Tatragas S R O Verfahren und Vorrichtung zur biologischen Abwasserreinigung
SI1445239T1 (en) * 2003-02-07 2005-10-31 Delphin Umwelttechnik Gmbh Process to influence the sludge volume index for reducing floating sludge in sewage works
DE102004022766A1 (de) * 2004-05-05 2005-12-01 Bayer Chemicals Ag Schäume zur Entfernung von Schadstoffen und/oder Schwermetallen aus strömbaren Medien
US7699980B2 (en) 2007-08-24 2010-04-20 Praxair Technology, Inc. System for activated sludge wastewater treatment with high dissolved oxygen levels
US10669177B1 (en) * 2017-06-14 2020-06-02 Stallion Oilfield Services Ltd. Apparatus and method for recycling blackwater and greywater at oil and gas well sites

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574331A (en) * 1968-12-18 1971-04-13 Mitsubishi Kakoki Kk Aeration tank for waste treatment
US3547812A (en) * 1969-07-02 1970-12-15 Union Carbide Corp High oxygen utilization in bod-containing water treatment
US3772187A (en) * 1971-07-14 1973-11-13 D Othmer Sewage treatment process
US4163712A (en) * 1973-01-08 1979-08-07 Boc Limited Treatment of liquid
US3968035A (en) * 1973-04-05 1976-07-06 Eli Lilly And Company Super-oxygenation method
US3954606A (en) * 1973-11-12 1976-05-04 Air Products And Chemicals, Inc. Wastewater treatment system with controlled mixing
DE2420076A1 (de) * 1974-04-25 1975-11-13 Bayer Ag Vorrichtung zum kontinuierlichen eintrag von sauerstoff in ein kontinuierlich betriebenes einstufiges belebtschlammbecken
US4202763A (en) * 1975-02-07 1980-05-13 Hitachi, Ltd. High-efficient activated sludge method
US3994802A (en) * 1975-04-16 1976-11-30 Air Products And Chemicals, Inc. Removal of BOD and nitrogenous pollutants from wastewaters
US4166790A (en) * 1975-04-17 1979-09-04 Bayer Aktiengesellschaft Single stage process for continuous introduction of oxygen-containing gases into effluent containing activated sludge
GB1593253A (en) * 1976-08-24 1981-07-15 Boc Ltd Biological treatment of aqueous waste material with oxygen
US4104167A (en) * 1976-10-08 1978-08-01 Ferdinand Besik Apparatus for purifying waste waters
US4374027A (en) * 1978-02-06 1983-02-15 International Telephone And Telegraph Corporation Process for the secondary treatment of wastewater
US4206047A (en) * 1978-07-13 1980-06-03 Houdaille Industries, Inc. Multi-stage systems for waste water oxidation
GB2071633B (en) * 1980-03-07 1984-02-08 Kubota Ltd Waste water treating apparatus
DE3028336C2 (de) * 1980-07-25 1985-08-01 Wilhelm Roediger Gmbh + Co, 6450 Hanau Verfahren zum biologischen Reinigen von Abwasser
DE3129926A1 (de) * 1981-07-29 1983-02-17 Bayerische Milchindustrie eG, 8000 München Vorrichtung zur biologischen reinigung organischer abwaesser
JPS58216788A (ja) * 1982-06-01 1983-12-16 Kurita Water Ind Ltd 汚水の曝気装置
DE3403298A1 (de) * 1984-01-31 1985-08-01 PREWAtec Metallbau und Wassertechnik GmbH & Co KG, 8900 Augsburg Verfahren und vorrichtung zur reinigung von abwaessern
DE3639572A1 (de) * 1986-11-20 1988-05-26 Anna Kursa Begasungsverfahren der abwaesser
JPH04200797A (ja) * 1990-11-30 1992-07-21 Mitsubishi Paper Mills Ltd 有機排水の活性汚泥処理方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9818727A2 *

Also Published As

Publication number Publication date
AU6908198A (en) 1998-05-22
WO1998018727A3 (fr) 1998-07-09
DE19644080A1 (de) 1998-05-07
US6280624B1 (en) 2001-08-28
WO1998018727A2 (fr) 1998-05-07

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19990531

AK Designated contracting states

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Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL SE

17Q First examination report despatched

Effective date: 19991214

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MESSER GRIESHEIM GMBH

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 20021223