FR2225198A1 - Pulp treatment by aeration - using venturi diffusor in downpipe to draw in recycled foam or air - Google Patents

Pulp treatment by aeration - using venturi diffusor in downpipe to draw in recycled foam or air

Info

Publication number
FR2225198A1
FR2225198A1 FR7412640A FR7412640A FR2225198A1 FR 2225198 A1 FR2225198 A1 FR 2225198A1 FR 7412640 A FR7412640 A FR 7412640A FR 7412640 A FR7412640 A FR 7412640A FR 2225198 A1 FR2225198 A1 FR 2225198A1
Authority
FR
France
Prior art keywords
pulp
downpipe
aeration
draw
foam
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
FR7412640A
Other languages
English (en)
Other versions
FR2225198B1 (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.)
Waagner Biro AG
Original Assignee
Waagner Biro 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 Waagner Biro AG filed Critical Waagner Biro AG
Publication of FR2225198A1 publication Critical patent/FR2225198A1/fr
Application granted granted Critical
Publication of FR2225198B1 publication Critical patent/FR2225198B1/fr
Granted 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
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1284—Mixing devices
    • 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
    • C02F3/1294—"Venturi" aeration means
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/06—Nozzles; Sprayers; Spargers; Diffusers
    • 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)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Wood Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Zoology (AREA)
  • Water Supply & Treatment (AREA)
  • Sustainable Development (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
FR7412640A 1973-04-11 1974-04-10 Pulp treatment by aeration - using venturi diffusor in downpipe to draw in recycled foam or air Granted FR2225198A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT317273A AT319864B (de) 1973-04-11 1973-04-11 Verfahren und Einrichtung zur Behandlung von Flüssigkeiten oder Trüben

Publications (2)

Publication Number Publication Date
FR2225198A1 true FR2225198A1 (en) 1974-11-08
FR2225198B1 FR2225198B1 (fr) 1978-11-17

Family

ID=3546451

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7412640A Granted FR2225198A1 (en) 1973-04-11 1974-04-10 Pulp treatment by aeration - using venturi diffusor in downpipe to draw in recycled foam or air

Country Status (5)

Country Link
AT (1) AT319864B (fr)
CH (1) CH588418A5 (fr)
DE (1) DE2415940C3 (fr)
FR (1) FR2225198A1 (fr)
IT (1) IT1006422B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317233A1 (fr) * 1975-07-07 1977-02-04 Waagner Biro Ag Procede et dispositif pour le traitement d'un liquide
EP0003787A1 (fr) * 1978-02-16 1979-09-05 LOCHER & CIE. AG. Bassin pour l'aération d'eau usée

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284510A (en) * 1978-05-11 1981-08-18 Canadian Liquid Air Ltd./Air Liquide Canada Ltee. Two zone process for biological treatment of waste water
SE442173B (sv) * 1983-10-27 1985-12-09 Sunds Defibrator Anordning vid flotation av fibersuspensioner
HU205724B (en) * 1986-11-28 1992-06-29 Istvan Kenyeres Method for incereasing the performance and dissolving degree of impact jet gas-imput
DE4112378A1 (de) * 1991-04-16 1992-10-22 Leonhard Jagusch Vorrichtung zur begasung von fluessigkeiten

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2072789A5 (fr) * 1969-12-02 1971-09-24 Kurashiki Boseki Kk
CH522431A (de) * 1968-11-20 1972-06-30 Vogelbusch Gmbh Vorrichtung zur Begasung von Flüssigkeiten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH522431A (de) * 1968-11-20 1972-06-30 Vogelbusch Gmbh Vorrichtung zur Begasung von Flüssigkeiten
FR2072789A5 (fr) * 1969-12-02 1971-09-24 Kurashiki Boseki Kk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2317233A1 (fr) * 1975-07-07 1977-02-04 Waagner Biro Ag Procede et dispositif pour le traitement d'un liquide
EP0003787A1 (fr) * 1978-02-16 1979-09-05 LOCHER & CIE. AG. Bassin pour l'aération d'eau usée

Also Published As

Publication number Publication date
DE2415940B2 (de) 1980-04-03
DE2415940A1 (de) 1974-10-31
AT319864B (de) 1975-01-10
FR2225198B1 (fr) 1978-11-17
DE2415940C3 (de) 1980-11-20
IT1006422B (it) 1976-09-30
CH588418A5 (fr) 1977-05-31

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Legal Events

Date Code Title Description
ST Notification of lapse