FR2362794A1 - WASTEWATER TREATMENT PROCESS - Google Patents

WASTEWATER TREATMENT PROCESS

Info

Publication number
FR2362794A1
FR2362794A1 FR7725565A FR7725565A FR2362794A1 FR 2362794 A1 FR2362794 A1 FR 2362794A1 FR 7725565 A FR7725565 A FR 7725565A FR 7725565 A FR7725565 A FR 7725565A FR 2362794 A1 FR2362794 A1 FR 2362794A1
Authority
FR
France
Prior art keywords
treatment process
wastewater treatment
organic carbon
wastewater
microbial
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.)
Withdrawn
Application number
FR7725565A
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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
Priority claimed from JP9960476A external-priority patent/JPS5331366A/en
Priority claimed from JP11896176A external-priority patent/JPS5345048A/en
Application filed by Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of FR2362794A1 publication Critical patent/FR2362794A1/en
Withdrawn legal-status Critical Current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
    • C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • 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
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • 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
    • C02F3/308—Biological phosphorus removal
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • 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)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Activated Sludge Processes (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

Procédé de traitement élaboré des eaux usées. Ce procédé consiste à maintenir dans un ou plusieurs réservoirs d'aération une concentration microbienne de 20 à 200 % en poids sur la base de la teneur totale en carbone organique des eaux usées et à ajuster entre 3 et 25 la quantité de carbone organique traitée par jour dans ledit ou lesdits réservoirs d'aération et exprimée en poids microbien. Application notamment aux traitements des effluents urbains ou à ceux de l'industrie alimentaire.Elaborate wastewater treatment process. This method consists of maintaining in one or more aeration tanks a microbial concentration of 20 to 200% by weight based on the total organic carbon content of the wastewater and adjusting between 3 and 25 the amount of organic carbon treated by day in said aeration tank (s) and expressed in microbial weight. Application in particular to the treatment of urban effluents or to those of the food industry.

FR7725565A 1976-08-23 1977-08-22 WASTEWATER TREATMENT PROCESS Withdrawn FR2362794A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9960476A JPS5331366A (en) 1976-08-23 1976-08-23 Method of treating waste liquid with high degree
JP11896176A JPS5345048A (en) 1976-10-05 1976-10-05 Advanced treatment of waste water

Publications (1)

Publication Number Publication Date
FR2362794A1 true FR2362794A1 (en) 1978-03-24

Family

ID=26440723

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7725565A Withdrawn FR2362794A1 (en) 1976-08-23 1977-08-22 WASTEWATER TREATMENT PROCESS

Country Status (3)

Country Link
DE (1) DE2737609A1 (en)
FR (1) FR2362794A1 (en)
GB (1) GB1591186A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206288A (en) * 1978-05-05 1980-06-03 Union Carbide Corporation Microbial desulfurization of coal

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB587400A (en) * 1943-04-21 1947-04-24 Infilco Inc Improvements in or relating to process of and apparatus for treating sewage and other waste liquors
FR2116662A5 (en) * 1970-12-02 1972-07-21 Degremont
US3864246A (en) * 1973-01-24 1975-02-04 Air Prod & Chem Non-bulking activated sludge process
FR2240193A1 (en) * 1973-08-08 1975-03-07 Govignon Fernand Small effluent plant combines flotation and aeration - for efficient purifn. in closed top tank suitable for farms
US3945918A (en) * 1974-01-10 1976-03-23 Airco, Inc. Methods and apparatus for treating a liquid with a gas
DE2535323A1 (en) * 1974-08-09 1976-07-22 British Steel Corp Biological treatment of exhaust waste

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB587400A (en) * 1943-04-21 1947-04-24 Infilco Inc Improvements in or relating to process of and apparatus for treating sewage and other waste liquors
FR2116662A5 (en) * 1970-12-02 1972-07-21 Degremont
US3864246A (en) * 1973-01-24 1975-02-04 Air Prod & Chem Non-bulking activated sludge process
FR2240193A1 (en) * 1973-08-08 1975-03-07 Govignon Fernand Small effluent plant combines flotation and aeration - for efficient purifn. in closed top tank suitable for farms
US3945918A (en) * 1974-01-10 1976-03-23 Airco, Inc. Methods and apparatus for treating a liquid with a gas
DE2535323A1 (en) * 1974-08-09 1976-07-22 British Steel Corp Biological treatment of exhaust waste

Also Published As

Publication number Publication date
GB1591186A (en) 1981-06-17
DE2737609A1 (en) 1978-03-02

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Legal Events

Date Code Title Description
ST Notification of lapse