WO1999037586A3 - Process for oxidative regeneration of supports colonised with bacteria and used in the biological treatment of contaminated water - Google Patents

Process for oxidative regeneration of supports colonised with bacteria and used in the biological treatment of contaminated water Download PDF

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Publication number
WO1999037586A3
WO1999037586A3 PCT/BE1999/000009 BE9900009W WO9937586A3 WO 1999037586 A3 WO1999037586 A3 WO 1999037586A3 BE 9900009 W BE9900009 W BE 9900009W WO 9937586 A3 WO9937586 A3 WO 9937586A3
Authority
WO
WIPO (PCT)
Prior art keywords
colonised
bacteria
contaminated water
supports
biological treatment
Prior art date
Application number
PCT/BE1999/000009
Other languages
French (fr)
Other versions
WO1999037586A2 (en
Inventor
Joost Desmet
Rikie Seynaeve
Johan Craeye
Original Assignee
Desotec N V
Joost Desmet
Rikie Seynaeve
Johan Craeye
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 Desotec N V, Joost Desmet, Rikie Seynaeve, Johan Craeye filed Critical Desotec N V
Publication of WO1999037586A2 publication Critical patent/WO1999037586A2/en
Publication of WO1999037586A3 publication Critical patent/WO1999037586A3/en

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
    • C02F3/1289—Aeration by saturation under super-atmospheric pressure
    • 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
    • C02F3/04—Aerobic processes using trickle filters
    • 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
    • C02F3/10—Packings; Fillings; Grids
    • 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)
  • Biological Treatment Of Waste Water (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The present invention is directed to a novel process for the oxidative regeneration of supports colonised with bacteria and used in the biological treatment of contaminated water. The present invention is directed, in particular, to a method to simultaneously regenerate supports colonised with bacteria and to biologically treat contaminated water, wherein a mixture of the contaminated water and part of the process effluent is saturated with oxygen containing gas and subsequently circulated over a bed of the support colonised with bacteria.
PCT/BE1999/000009 1998-01-26 1999-01-25 Process for oxidative regeneration of supports colonised with bacteria and used in the biological treatment of contaminated water WO1999037586A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98101277 1998-01-26
EP98101277.6 1998-01-26

Publications (2)

Publication Number Publication Date
WO1999037586A2 WO1999037586A2 (en) 1999-07-29
WO1999037586A3 true WO1999037586A3 (en) 1999-09-23

Family

ID=8231310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BE1999/000009 WO1999037586A2 (en) 1998-01-26 1999-01-25 Process for oxidative regeneration of supports colonised with bacteria and used in the biological treatment of contaminated water

Country Status (1)

Country Link
WO (1) WO1999037586A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270513B1 (en) 2001-06-26 2007-04-04 Aquafin N.V. Process and installation for treating a polluted aqueous liquid showing a COD value

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4419243A (en) * 1977-10-20 1983-12-06 The University Of Manchester Institute Of Science And Technology Growth of biomass
US5538635A (en) * 1992-11-06 1996-07-23 Envirex, Inc. Method for dissolving gas in liquid including pressurized bubble contactor in sidestream

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4419243A (en) * 1977-10-20 1983-12-06 The University Of Manchester Institute Of Science And Technology Growth of biomass
US5538635A (en) * 1992-11-06 1996-07-23 Envirex, Inc. Method for dissolving gas in liquid including pressurized bubble contactor in sidestream

Also Published As

Publication number Publication date
WO1999037586A2 (en) 1999-07-29

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