FR2449658A1 - Purificn. of aq. effluent - using bacterial bed and activated sludge, ensuring sufficient transfer of oxygen from first to second stage - Google Patents

Purificn. of aq. effluent - using bacterial bed and activated sludge, ensuring sufficient transfer of oxygen from first to second stage

Info

Publication number
FR2449658A1
FR2449658A1 FR7904298A FR7904298A FR2449658A1 FR 2449658 A1 FR2449658 A1 FR 2449658A1 FR 7904298 A FR7904298 A FR 7904298A FR 7904298 A FR7904298 A FR 7904298A FR 2449658 A1 FR2449658 A1 FR 2449658A1
Authority
FR
France
Prior art keywords
stage
bacterial bed
purificn
oxygen
activated sludge
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.)
Granted
Application number
FR7904298A
Other languages
French (fr)
Other versions
FR2449658B1 (en
Inventor
Paul Brouzes
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.)
Institut National Recherche Chimique Appliquee
Original Assignee
Institut National Recherche Chimique Appliquee
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 Institut National Recherche Chimique Appliquee filed Critical Institut National Recherche Chimique Appliquee
Priority to FR7904298A priority Critical patent/FR2449658B1/en
Publication of FR2449658A1 publication Critical patent/FR2449658A1/en
Application granted granted Critical
Publication of FR2449658B1 publication Critical patent/FR2449658B1/en
Expired 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
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/121—Multistep 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
    • C02F3/006—Regulation methods for biological treatment
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
    • 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)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Microbiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

Combination of a bacterial bed treatment and an activated sludge treatment is used. A sufficient transfer of O2 from the 1st to the 2nd stage is ensured and an intimate contact with the microorganisms which are kept activated. The operating conditions of the 2nd stage are regulated and maintained as a function of the input and consumption of oxygen. The process enables an increase in purificn yield of about 10% compared with the bacterial bed above and an energy consumption hardly greater than that of the bacterial bed alone.
FR7904298A 1979-02-20 1979-02-20 REGULATING PROCESS FOR THE PURIFICATION OF WATERS OR LIQUID EFFLUENTS BY BACTERIAL BEDS AND ACTIVATED SLUDGES Expired FR2449658B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904298A FR2449658B1 (en) 1979-02-20 1979-02-20 REGULATING PROCESS FOR THE PURIFICATION OF WATERS OR LIQUID EFFLUENTS BY BACTERIAL BEDS AND ACTIVATED SLUDGES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904298A FR2449658B1 (en) 1979-02-20 1979-02-20 REGULATING PROCESS FOR THE PURIFICATION OF WATERS OR LIQUID EFFLUENTS BY BACTERIAL BEDS AND ACTIVATED SLUDGES

Publications (2)

Publication Number Publication Date
FR2449658A1 true FR2449658A1 (en) 1980-09-19
FR2449658B1 FR2449658B1 (en) 1983-07-22

Family

ID=9222206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904298A Expired FR2449658B1 (en) 1979-02-20 1979-02-20 REGULATING PROCESS FOR THE PURIFICATION OF WATERS OR LIQUID EFFLUENTS BY BACTERIAL BEDS AND ACTIVATED SLUDGES

Country Status (1)

Country Link
FR (1) FR2449658B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117546A2 (en) * 1983-02-26 1984-09-05 Heinz Dipl.-Ing. Gebert Apparatus for aerating waste water

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB523151A (en) * 1938-11-24 1940-07-08 Joseph Darius Griffin Improvements relating to biological processes for the purification of liquids
FR1017458A (en) * 1949-05-17 1952-12-11 Method and apparatus for the treatment of waste water or black water
US3291309A (en) * 1963-10-09 1966-12-13 Crane Co System for the treatment of sewage or the like
DE1246602B (en) * 1958-01-15 1967-08-03 Metallgesellschaft Ag Process and device for the maintenance-free operation of activated sludge plants
DE2329279A1 (en) * 1973-06-08 1975-01-02 Klein Hans U Biochemical sewage treatment using oxygen - at feed rate controlled by oxygen consumption of microorganisms
FR2395227A1 (en) * 1977-06-24 1979-01-19 Inst Nat Rech Chimique Treating effluent by the activated sludge method - with pretreatment in a sealed bacterial bed

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB523151A (en) * 1938-11-24 1940-07-08 Joseph Darius Griffin Improvements relating to biological processes for the purification of liquids
FR1017458A (en) * 1949-05-17 1952-12-11 Method and apparatus for the treatment of waste water or black water
DE1246602B (en) * 1958-01-15 1967-08-03 Metallgesellschaft Ag Process and device for the maintenance-free operation of activated sludge plants
US3291309A (en) * 1963-10-09 1966-12-13 Crane Co System for the treatment of sewage or the like
DE2329279A1 (en) * 1973-06-08 1975-01-02 Klein Hans U Biochemical sewage treatment using oxygen - at feed rate controlled by oxygen consumption of microorganisms
FR2395227A1 (en) * 1977-06-24 1979-01-19 Inst Nat Rech Chimique Treating effluent by the activated sludge method - with pretreatment in a sealed bacterial bed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117546A2 (en) * 1983-02-26 1984-09-05 Heinz Dipl.-Ing. Gebert Apparatus for aerating waste water
EP0117546A3 (en) * 1983-02-26 1986-04-16 Heinz Dipl.-Ing. Gebert Apparatus for aerating waste water

Also Published As

Publication number Publication date
FR2449658B1 (en) 1983-07-22

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