FR2451892A1 - Activated sludge treatment plant to purify waste water - comprises tank contg. aeration chamber surrounded by decantation zone - Google Patents
Activated sludge treatment plant to purify waste water - comprises tank contg. aeration chamber surrounded by decantation zoneInfo
- Publication number
- FR2451892A1 FR2451892A1 FR7907418A FR7907418A FR2451892A1 FR 2451892 A1 FR2451892 A1 FR 2451892A1 FR 7907418 A FR7907418 A FR 7907418A FR 7907418 A FR7907418 A FR 7907418A FR 2451892 A1 FR2451892 A1 FR 2451892A1
- Authority
- FR
- France
- Prior art keywords
- aeration chamber
- zone
- decantation zone
- activated sludge
- decantation
- 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
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
- C02F3/22—Activated sludge processes using circulation pipes
- C02F3/223—Activated sludge processes using circulation pipes using "air-lift"
-
- 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
-
- 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
-
- 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)
- 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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Appts. is claimed for purificn. of waste water by treatment with aerated, activated sludge followed by clarification in a decanting chamber. A main outer tank is subdivided from top to bottom into a vertical aeration chamber and an adjacent decantation zone. The decantation zone has recycling connections into the aeration chamber and an outlet to discharge clarified water. The aeration chamber is surrounded by the decantation zone which is itself bounded by the outer wall of the main tank. The decantation zone is divided into superimposed stages by parallel baffle plates inclined to the horizontal. Flow between stages passes between the lower edge of each baffle plate and the adjacent sidewall of the zone. The upper part of each stage has an outlet for clarified water. The main outer tank is pref. in the form of a vertical cylindrical or rectangular cross-section tower. The width of flow passages at the bottom of each stage pref. decreases successively from top to bottom of the zone. Simplicity and economy of construction. No pipework between aeration chamber and decantation zone. Activated sludge is kept in aerobic condition in the decantation zone. Depth of aeration chamber ensures efficient utilisation of air.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7907418A FR2451892A1 (en) | 1979-03-23 | 1979-03-23 | Activated sludge treatment plant to purify waste water - comprises tank contg. aeration chamber surrounded by decantation zone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7907418A FR2451892A1 (en) | 1979-03-23 | 1979-03-23 | Activated sludge treatment plant to purify waste water - comprises tank contg. aeration chamber surrounded by decantation zone |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2451892A1 true FR2451892A1 (en) | 1980-10-17 |
FR2451892B1 FR2451892B1 (en) | 1983-05-27 |
Family
ID=9223509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7907418A Granted FR2451892A1 (en) | 1979-03-23 | 1979-03-23 | Activated sludge treatment plant to purify waste water - comprises tank contg. aeration chamber surrounded by decantation zone |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2451892A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106746222A (en) * | 2016-12-26 | 2017-05-31 | 韶关市中都工业新技术开发有限公司 | A kind of livestock and poultry feces microbial cleaning system and purification method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1931635A1 (en) * | 1968-12-18 | 1970-07-02 | Mitsubishi Kakoki Kk | Vertical ventilation tank for wastewater treatment |
DE1931777A1 (en) * | 1969-06-23 | 1971-01-07 | Dietrich Dipl Chem Dr Phil Kar | Clarifying turbid waste water |
FR2333754A1 (en) * | 1975-12-04 | 1977-07-01 | Bayer Ag | DEVICE FOR THE AEROBIC TREATMENT OF ACTIVE SLUDGE |
-
1979
- 1979-03-23 FR FR7907418A patent/FR2451892A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1931635A1 (en) * | 1968-12-18 | 1970-07-02 | Mitsubishi Kakoki Kk | Vertical ventilation tank for wastewater treatment |
DE1931777A1 (en) * | 1969-06-23 | 1971-01-07 | Dietrich Dipl Chem Dr Phil Kar | Clarifying turbid waste water |
FR2333754A1 (en) * | 1975-12-04 | 1977-07-01 | Bayer Ag | DEVICE FOR THE AEROBIC TREATMENT OF ACTIVE SLUDGE |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106746222A (en) * | 2016-12-26 | 2017-05-31 | 韶关市中都工业新技术开发有限公司 | A kind of livestock and poultry feces microbial cleaning system and purification method |
CN106746222B (en) * | 2016-12-26 | 2020-05-12 | 韶关市中都工业新技术开发有限公司 | Livestock and poultry manure microbial purification system and purification method |
Also Published As
Publication number | Publication date |
---|---|
FR2451892B1 (en) | 1983-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |