FR2380991A1 - Procede et appareil de traitement des eaux residuaires - Google Patents

Procede et appareil de traitement des eaux residuaires

Info

Publication number
FR2380991A1
FR2380991A1 FR7804274A FR7804274A FR2380991A1 FR 2380991 A1 FR2380991 A1 FR 2380991A1 FR 7804274 A FR7804274 A FR 7804274A FR 7804274 A FR7804274 A FR 7804274A FR 2380991 A1 FR2380991 A1 FR 2380991A1
Authority
FR
France
Prior art keywords
waste water
gas
water treatment
treatment process
residual water
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
FR7804274A
Other languages
English (en)
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.)
BOC Group Ltd
Original Assignee
BOC International Ltd
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 BOC International Ltd filed Critical BOC International Ltd
Publication of FR2380991A1 publication Critical patent/FR2380991A1/fr
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
    • C02F3/12—Activated sludge processes
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • 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
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/08—Treatment of wastewater in the sewer, e.g. to reduce grease, odour
    • 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)
  • Engineering & Computer Science (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Physical Water Treatments (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

Procédé et appareil de traitement des eaux résiduaires. Ledit procéde consiste à injecter de l'air ou un gaz riche en oxygène dans les eaux résiduaires contenues dans l'égout par une buse d'étranglement destinée à augmenter la vitesse du gaz à son entrée dans les eaux résiduaires. Il est prévu une réserve de gaz sous forme d'un réservoir d'ogygène liquide, et un système de régulation du débit d'injection de gaz en fonction des variations de la concentration d'oxygène dans les eaux résiduaires. Application au traitement des eaux d'égout
FR7804274A 1977-02-16 1978-02-15 Procede et appareil de traitement des eaux residuaires Pending FR2380991A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6492/77A GB1595191A (en) 1977-02-16 1977-02-16 Treatment with oxygen of sewage in sewers

Publications (1)

Publication Number Publication Date
FR2380991A1 true FR2380991A1 (fr) 1978-09-15

Family

ID=9815489

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804274A Pending FR2380991A1 (fr) 1977-02-16 1978-02-15 Procede et appareil de traitement des eaux residuaires

Country Status (4)

Country Link
DE (1) DE2805622A1 (fr)
FR (1) FR2380991A1 (fr)
GB (1) GB1595191A (fr)
NL (1) NL7801477A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19705052C1 (de) * 1997-02-03 1998-08-20 Hwg Havellaendische Wasser Gmb Anordnung zur Entfernung von Gasen aus Grund- und/oder Abwässern, speziell aus Auslaufschächten mit anschließender biologischer Oxydation
NZ537239A (en) * 2003-04-08 2006-08-31 Richard E Apparatus and method for gas induced mixing and agitating of a fermenting juice in a tank during vinification

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300608A1 (fr) * 1975-02-12 1976-09-10 Magyar Asvanyolaj Es Foeldgaz Procede de dispersion de gaz dans une phase liquide continue

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300608A1 (fr) * 1975-02-12 1976-09-10 Magyar Asvanyolaj Es Foeldgaz Procede de dispersion de gaz dans une phase liquide continue

Also Published As

Publication number Publication date
DE2805622A1 (de) 1978-08-17
NL7801477A (nl) 1978-08-18
GB1595191A (en) 1981-08-12

Similar Documents

Publication Publication Date Title
FR2767522B1 (fr) Procede et dispositif de traitement de l'eau par injection d'ozone et de dioxyde de carbone
FR2696440B1 (fr) Procédé et installation de traitement d'effluents liquides contenant notamment des polluants en solution par séparations membranaire et gravitaire.
FR2539875B1 (fr) Procede et appareil de detection de substances toxiques dans l'eau residuaire alimentant une station de traitement biologique
FR2329332A1 (fr) Dispositif pour l'introduction de gaz notamment d'air dans des liquides tels que des eaux usees a traiter
GB1214677A (en) Process and plant for biological purification of waste water and sewage
FR2380991A1 (fr) Procede et appareil de traitement des eaux residuaires
FR2380226A1 (fr) Procede a une etape pour l'introduction en continu de gaz oxygenes dans des boues activees ou des bouillons de fermentation contenant des eaux residuaires
SE7905358L (sv) Forfarande for utnyttjande av vermeinnehallet i spillvatten samt apparat for att utova forfarandet
ATE149147T1 (de) Vorrichtung zum lösen von gas in flüssigkeit einschliesslich eines unter druck im seitenstrang arbeitenden blasenkontaktreaktors
FR2434647A1 (fr) Appareil et procede pour dissoudre du gaz dans un liquide
ATA270988A (de) Vorrichtung zum aufbereiten von fluessigkeiten
FR2374070A1 (fr) Systeme de regulation pour une installation de lavage de gaz a regeneration de liquide de lavage
GB1493780A (en) Desorption of volatile compounds dissolved in water
RU94041752A (ru) Способ биологической обработки сточной воды и устройство для его осуществления
OA08295A (fr) Système de purification de l'eau par un allotrope d'oxygène ionisé gazeux et procédé et appareil pour ce système.
FR2354291A1 (fr) Traitement continu d'effluents liquides et d'eaux residuaires
JPS5436064A (en) Method of controlling amount of activated sludge kept in settling basin that is used in activated sludge
JPS5466559A (en) System for controlling sludges to be returned
DE59703366D1 (de) Verfahren und vorrichtung zur biologischen abwasserreinigung
FR2367024A1 (fr) Appareil et procede pour le traitement biologique d'eaux residuaires
JPS5342451A (en) Process for purifying organic waste water
JPS5556889A (en) Clarification method for waste water
JPS56100691A (en) Treatment for organic waste water
Nogita et al. Calculation of Sludge Reservoir Volume for MLSS Control.
JPS5687486A (en) Method and apparatus for detecting and controlling bod value of waste water by its turbidity