FR2400489A1 - Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps - Google Patents

Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps

Info

Publication number
FR2400489A1
FR2400489A1 FR7725148A FR7725148A FR2400489A1 FR 2400489 A1 FR2400489 A1 FR 2400489A1 FR 7725148 A FR7725148 A FR 7725148A FR 7725148 A FR7725148 A FR 7725148A FR 2400489 A1 FR2400489 A1 FR 2400489A1
Authority
FR
France
Prior art keywords
treated
degradation
waste water
oxygen
nitrates
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.)
Pending
Application number
FR7725148A
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.)
Carboxyque Francaise SA
Original Assignee
Carboxyque Francaise 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 Carboxyque Francaise SA filed Critical Carboxyque Francaise SA
Priority to FR7725148A priority Critical patent/FR2400489A1/en
Publication of FR2400489A1 publication Critical patent/FR2400489A1/en
Pending 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
    • C02F3/06—Aerobic processes using submerged 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
    • C02F3/006—Regulation methods for biological treatment
    • 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
    • C02F3/28—Anaerobic digestion processes
    • C02F3/2806—Anaerobic processes using solid supports for microorganisms
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment
    • 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)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

Waste water is treated continuously by first decanting off from sludge, then charging it with oxygen. The liq. with oxygen dissolved in it is then aerobically treated to cause degradation of the substances in it, further aerobically treated to convert nitrogenous material into nitrates, and then, after de-gassing, treated anaerobically to decompose the nitrates, free nitrogen being filtered. The flow is regulated by analysis of the purified water, partic. w.r.t. its chemical oxygen demand. The process can be conducted under press. The biological degradation and other treatments are conducted using specific bacteria for the various stages. The bacteria used can also be adapted to other components of the treated water, e.g. S and sulphites. The process overcomes lack of response to variations in flow rate, incapability of treating feebly charged effluents, and lack of elimination of nitrogenous cpds., these difficulties being caused by the low oxygen transfer capacity of previous systems. Installations used to effect this process are very flexible in operation.
FR7725148A 1977-08-17 1977-08-17 Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps Pending FR2400489A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7725148A FR2400489A1 (en) 1977-08-17 1977-08-17 Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7725148A FR2400489A1 (en) 1977-08-17 1977-08-17 Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps

Publications (1)

Publication Number Publication Date
FR2400489A1 true FR2400489A1 (en) 1979-03-16

Family

ID=9194567

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725148A Pending FR2400489A1 (en) 1977-08-17 1977-08-17 Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps

Country Status (1)

Country Link
FR (1) FR2400489A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476629A2 (en) * 1980-02-22 1981-08-28 Degremont Sa Denitrification and nitrification reactors for water treatment - with at least one granular bacterial support bed
WO1996015991A1 (en) * 1994-11-18 1996-05-30 Actew Corporation Ltd. Wastewater treatment method and plant
WO2018178373A1 (en) * 2017-03-30 2018-10-04 Suez Groupe Method and device for treating wastewater

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476629A2 (en) * 1980-02-22 1981-08-28 Degremont Sa Denitrification and nitrification reactors for water treatment - with at least one granular bacterial support bed
WO1996015991A1 (en) * 1994-11-18 1996-05-30 Actew Corporation Ltd. Wastewater treatment method and plant
WO2018178373A1 (en) * 2017-03-30 2018-10-04 Suez Groupe Method and device for treating wastewater
CN110573462A (en) * 2017-03-30 2019-12-13 苏伊士集团 method and apparatus for treating waste water
US11459251B2 (en) 2017-03-30 2022-10-04 Suez Groupe Method and device for treating wastewater
CN110573462B (en) * 2017-03-30 2022-11-11 苏伊士集团 Method and apparatus for treating waste water
AU2018242217B2 (en) * 2017-03-30 2023-04-27 Suez International Method and device for treating wastewater

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