FR2163762A1 - Aq wastes activated sludge treatment - where carbon dioxide is removed from gas after each aeration stage - Google Patents

Aq wastes activated sludge treatment - where carbon dioxide is removed from gas after each aeration stage

Info

Publication number
FR2163762A1
FR2163762A1 FR7245100A FR7245100A FR2163762A1 FR 2163762 A1 FR2163762 A1 FR 2163762A1 FR 7245100 A FR7245100 A FR 7245100A FR 7245100 A FR7245100 A FR 7245100A FR 2163762 A1 FR2163762 A1 FR 2163762A1
Authority
FR
France
Prior art keywords
gas
wastes
activated sludge
carbon dioxide
sludge treatment
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Withdrawn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
FR7245100A
Other languages
French (fr)
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of FR2163762A1 publication Critical patent/FR2163762A1/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Withdrawn legal-status Critical Current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
    • C02F3/26—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)
  • Carbon And Carbon Compounds (AREA)

Abstract

Aq. wastes contg. biologically degradable material are treated with activated sludge using oxygen-contg. gas for aeration. After each stage, CO2 is removed from the gas, e.g. by absorption in an amine or adsorption on a zeolite, before it is recycled. The process is more efficient w.r.t. oxygen consumption and is esp. useful where high oxygen content gases are used for aeration.
FR7245100A 1971-12-18 1972-12-18 Aq wastes activated sludge treatment - where carbon dioxide is removed from gas after each aeration stage Withdrawn FR2163762A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2162950A DE2162950A1 (en) 1971-12-18 1971-12-18 METHODS FOR TREATMENT OF WASTEWATER

Publications (1)

Publication Number Publication Date
FR2163762A1 true FR2163762A1 (en) 1973-07-27

Family

ID=5828437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7245100A Withdrawn FR2163762A1 (en) 1971-12-18 1972-12-18 Aq wastes activated sludge treatment - where carbon dioxide is removed from gas after each aeration stage

Country Status (3)

Country Link
JP (1) JPS4869362A (en)
DE (1) DE2162950A1 (en)
FR (1) FR2163762A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022994A (en) * 1983-07-19 1985-02-05 Kubota Ltd Process for aerating activated sludge with pure oxygen
JP2500451Y2 (en) * 1992-05-06 1996-06-05 ホーユー株式会社 Discharge tool with comb and discharge tool with brush
DE102012112685A1 (en) * 2012-12-19 2014-06-26 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Method and arrangement for reducing the emission of carbon dioxide in sewage treatment plants

Also Published As

Publication number Publication date
JPS4869362A (en) 1973-09-20
DE2162950A1 (en) 1973-06-20

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Legal Events

Date Code Title Description
RE Withdrawal of published application