FR2192074A1 - Purification of sewage - using biological filtration and activated sludge - Google Patents

Purification of sewage - using biological filtration and activated sludge

Info

Publication number
FR2192074A1
FR2192074A1 FR7225374A FR7225374A FR2192074A1 FR 2192074 A1 FR2192074 A1 FR 2192074A1 FR 7225374 A FR7225374 A FR 7225374A FR 7225374 A FR7225374 A FR 7225374A FR 2192074 A1 FR2192074 A1 FR 2192074A1
Authority
FR
France
Prior art keywords
drum
sludge
recycled
blown
tank
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
FR7225374A
Other languages
French (fr)
Other versions
FR2192074B1 (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.)
MASSON HENRI FR
Original Assignee
MASSON HENRI FR
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 MASSON HENRI FR filed Critical MASSON HENRI FR
Priority to FR7225374A priority Critical patent/FR2192074A1/en
Publication of FR2192074A1 publication Critical patent/FR2192074A1/en
Application granted granted Critical
Publication of FR2192074B1 publication Critical patent/FR2192074B1/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
    • C02F3/08—Aerobic processes using moving contact bodies
    • C02F3/082—Rotating biological contactors
    • 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
    • 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)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (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)
  • Biological Treatment Of Waste Water (AREA)

Abstract

Combined use is made of the purifying effect caused by mixing, agitating and aerating fresh and recycled, partly purified sludge and the purifying effect of microorganisms supported on hollow materials, suitably aerated and regularly watered with the effluents to betreated. The raw sewage is introduced into a rotating drum through a hollow shaft and is stirred by internal blades. Air is blown by a fan through another hollow shaft. A filtering mass, consisting of a sieve with spirally-wound tubes, forms the lateral surface of the drum; this mas has numerous interstitial cavities which encourage the formation of a viscous purifying film which contains the bacteria. These receive the oxygen from aht eir blown in during the rotation of the structure partly immersed in a tank. The residue left in the drum assures the necessary recycling for activating the fresh sludge entering the drum. The water that is not recycled is directed to a settlement tank. Slude accumulates in the lower portion of the settlement tank while the clear, purified water pours ver the upper part into a gutter whence it is evacuated. Excess sludge can be removed periodically to drying beds.
FR7225374A 1972-07-10 1972-07-10 Purification of sewage - using biological filtration and activated sludge Granted FR2192074A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7225374A FR2192074A1 (en) 1972-07-10 1972-07-10 Purification of sewage - using biological filtration and activated sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7225374A FR2192074A1 (en) 1972-07-10 1972-07-10 Purification of sewage - using biological filtration and activated sludge

Publications (2)

Publication Number Publication Date
FR2192074A1 true FR2192074A1 (en) 1974-02-08
FR2192074B1 FR2192074B1 (en) 1975-03-07

Family

ID=9101781

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7225374A Granted FR2192074A1 (en) 1972-07-10 1972-07-10 Purification of sewage - using biological filtration and activated sludge

Country Status (1)

Country Link
FR (1) FR2192074A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181604A (en) * 1977-04-13 1980-01-01 Mitsubishi Rayon Co., Ltd. Process and apparatus for waste water treatment
DE3631728A1 (en) * 1986-09-18 1988-03-24 Manfred Dipl Ing Unger Waste water treatment plant
US11299413B2 (en) * 2019-09-30 2022-04-12 Nanjing University Method for modifying wastewater treatment device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181604A (en) * 1977-04-13 1980-01-01 Mitsubishi Rayon Co., Ltd. Process and apparatus for waste water treatment
DE3631728A1 (en) * 1986-09-18 1988-03-24 Manfred Dipl Ing Unger Waste water treatment plant
US11299413B2 (en) * 2019-09-30 2022-04-12 Nanjing University Method for modifying wastewater treatment device

Also Published As

Publication number Publication date
FR2192074B1 (en) 1975-03-07

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Legal Events

Date Code Title Description
ST Notification of lapse