CH609652A5 - Sewage treatment process using activated sludge - Google Patents
Sewage treatment process using activated sludgeInfo
- Publication number
- CH609652A5 CH609652A5 CH806475A CH806475A CH609652A5 CH 609652 A5 CH609652 A5 CH 609652A5 CH 806475 A CH806475 A CH 806475A CH 806475 A CH806475 A CH 806475A CH 609652 A5 CH609652 A5 CH 609652A5
- Authority
- CH
- Switzerland
- Prior art keywords
- activated sludge
- treatment process
- sewage treatment
- phosphate
- sludge
- Prior art date
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
-
- 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)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Removal Of Specific Substances (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The activated sludge employed for the microbiological purification of phosphate-containing sewage contains soluble phosphate present in the microorganisms. This sludge is kept in residence in an anaerobic medium to extract the soluble phosphate therefrom and the sludge rid of the phosphate is reemployed for the sewage purification.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48179374A | 1974-06-21 | 1974-06-21 | |
| US58195175A | 1975-06-04 | 1975-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH609652A5 true CH609652A5 (en) | 1979-03-15 |
Family
ID=27047049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH806475A CH609652A5 (en) | 1974-06-21 | 1975-06-20 | Sewage treatment process using activated sludge |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS5929320B2 (en) |
| AR (1) | AR206820A1 (en) |
| BR (1) | BR7503861A (en) |
| CA (1) | CA1063264A (en) |
| CH (1) | CH609652A5 (en) |
| DE (1) | DE2527588C2 (en) |
| DK (1) | DK281875A (en) |
| EG (1) | EG11772A (en) |
| FI (1) | FI62275C (en) |
| FR (1) | FR2275408A1 (en) |
| GB (1) | GB1512693A (en) |
| IE (1) | IE41385B1 (en) |
| IL (1) | IL47536A (en) |
| IN (1) | IN144405B (en) |
| IT (1) | IT1040676B (en) |
| NL (1) | NL171568C (en) |
| NO (1) | NO148260C (en) |
| SE (1) | SE410306B (en) |
| TR (1) | TR18849A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3729127A1 (en) * | 1987-09-01 | 1989-03-09 | Taetzner Wolfgang | Process and apparatus for biologically purifying waste waters of their phosphate impurities |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3236766A (en) * | 1964-03-31 | 1966-02-22 | Hazleton Lab Inc | Sewage treatment process |
| US3385785A (en) * | 1966-05-04 | 1968-05-28 | Fmc Corp | Method of controlling phosphate concentration in sewage treatment systems |
| US3681235A (en) * | 1971-03-11 | 1972-08-01 | Biospherics Inc | Internal precipitation of phosphate from activated sludge |
-
1974
- 1974-06-20 TR TR1884974A patent/TR18849A/en unknown
-
1975
- 1975-01-01 AR AR25928175A patent/AR206820A1/en active
- 1975-06-17 CA CA229,489A patent/CA1063264A/en not_active Expired
- 1975-06-18 SE SE7507013A patent/SE410306B/en unknown
- 1975-06-19 FI FI751833A patent/FI62275C/en not_active IP Right Cessation
- 1975-06-20 NL NLAANVRAGE7507418,A patent/NL171568C/en not_active IP Right Cessation
- 1975-06-20 IT IT5015775A patent/IT1040676B/en active
- 1975-06-20 DE DE2527588A patent/DE2527588C2/en not_active Expired
- 1975-06-20 FR FR7519419A patent/FR2275408A1/en active Granted
- 1975-06-20 BR BR7504965D patent/BR7503861A/en unknown
- 1975-06-20 DK DK281875A patent/DK281875A/en not_active Application Discontinuation
- 1975-06-20 GB GB26229/75A patent/GB1512693A/en not_active Expired
- 1975-06-20 NO NO752207A patent/NO148260C/en unknown
- 1975-06-20 CH CH806475A patent/CH609652A5/en not_active IP Right Cessation
- 1975-06-20 IL IL4753675A patent/IL47536A/en unknown
- 1975-06-20 JP JP50074558A patent/JPS5929320B2/en not_active Expired
- 1975-06-21 EG EG35475A patent/EG11772A/en active
- 1975-06-23 IN IN1237/CAL/1975A patent/IN144405B/en unknown
- 1975-06-23 IE IE1394/75A patent/IE41385B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EG11772A (en) | 1977-10-31 |
| AU8232675A (en) | 1976-12-23 |
| BR7503861A (en) | 1976-07-06 |
| NL171568B (en) | 1982-11-16 |
| NL171568C (en) | 1983-04-18 |
| NL7507418A (en) | 1975-12-23 |
| IN144405B (en) | 1978-04-29 |
| GB1512693A (en) | 1978-06-01 |
| FI751833A (en) | 1975-12-22 |
| SE7507013L (en) | 1975-12-22 |
| NO148260C (en) | 1983-09-07 |
| NO148260B (en) | 1983-05-30 |
| IT1040676B (en) | 1979-12-20 |
| CA1063264A (en) | 1979-09-25 |
| IE41385B1 (en) | 1979-12-19 |
| FR2275408A1 (en) | 1976-01-16 |
| SE410306B (en) | 1979-10-08 |
| IL47536A0 (en) | 1975-08-31 |
| DK281875A (en) | 1975-12-22 |
| FI62275B (en) | 1982-08-31 |
| DE2527588C2 (en) | 1985-09-19 |
| FR2275408B1 (en) | 1982-07-16 |
| TR18849A (en) | 1977-11-01 |
| JPS5929320B2 (en) | 1984-07-19 |
| DE2527588A1 (en) | 1976-01-15 |
| IE41385L (en) | 1975-12-21 |
| JPS5114757A (en) | 1976-02-05 |
| IL47536A (en) | 1978-07-31 |
| AR206820A1 (en) | 1976-08-23 |
| FI62275C (en) | 1982-12-10 |
| NO752207L (en) | 1975-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUE | Assignment |
Owner name: BIOSPHERICS INCORPORATED |
|
| PLI | Licence |
Free format text: HYDROCHEMIE-CONHAG B.V. |
|
| PLIA | Cancellation of licence |
Free format text: HYDROCHEMIE-CONHAG B.V. |
|
| PL | Patent ceased |