GB1527424A - Single-stage process for the continuous introduction of oxygen into a liquid containing microorganisms - Google Patents
Single-stage process for the continuous introduction of oxygen into a liquid containing microorganismsInfo
- Publication number
- GB1527424A GB1527424A GB1113076A GB1113076A GB1527424A GB 1527424 A GB1527424 A GB 1527424A GB 1113076 A GB1113076 A GB 1113076A GB 1113076 A GB1113076 A GB 1113076A GB 1527424 A GB1527424 A GB 1527424A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- gas
- gas introduction
- liquid containing
- stage process
- 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.)
- Expired
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 4
- 239000001301 oxygen Substances 0.000 title abstract 4
- 229910052760 oxygen Inorganic materials 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 244000005700 microbiome Species 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 6
- 230000002706 hydrostatic effect Effects 0.000 abstract 2
- 239000002351 wastewater Substances 0.000 abstract 2
- 238000005352 clarification Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
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
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
- B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
-
- 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
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
In activated sludge-containing wastewater from sewage treatment plants, oxygen is absorbed and consumed. Oxygen-containing gas, having at least 50% by volume of O2, at a hydrostatic pressure of 0.9 to 4 bar is passed in to a wastewater tank (10). The liquid height in the clarification tank (10) is 10 to 40 m. The gas pressure is 0.01 to 0.5 bar above the hydrostatic pressure at the gas introduction positions (12, 14), each of which has an aerated surface of 0.1 to 0.5 m<2>. Each gas introduction position (12), which is a bundle of a plurality of injectors, ejectors or nozzles or an orifice plate, is charged with 100 to 300 effective cubic metres of gas per m<2> of cross-sectional area and hour. The individual gas introduction positions (12) have a mutual central spacing of 2 to 10 m. The process permits the optimal utilisation of oxygen with single-stage operation. <IMAGE>
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2512815A DE2512815C2 (en) | 1975-03-22 | 1975-03-22 | Device for biological waste water treatment |
| DE19752516914 DE2516914A1 (en) | 1975-04-17 | 1975-04-17 | Biological treatment of effluent contg. activated sludge - involves continuously introducing oxygen (contg. gas) and feeding the outlet gas to a burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1527424A true GB1527424A (en) | 1978-10-04 |
Family
ID=25768677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1113076A Expired GB1527424A (en) | 1975-03-22 | 1976-03-19 | Single-stage process for the continuous introduction of oxygen into a liquid containing microorganisms |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS51117453A (en) |
| AU (1) | AU524259B2 (en) |
| CA (1) | CA1063263A (en) |
| CH (1) | CH614683A5 (en) |
| DK (1) | DK121176A (en) |
| FR (1) | FR2305400A1 (en) |
| GB (1) | GB1527424A (en) |
| NL (1) | NL7602978A (en) |
| SE (1) | SE7602245L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2705243A1 (en) * | 1977-02-09 | 1978-08-17 | Bayer Ag | SINGLE-STAGE PROCESS FOR THE CONTINUOUS ENTRY OF OXYGEN-CONTAINING GASES INTO ANIMATED SLUDGE-CONTAINING WASTEWATER |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49113463A (en) * | 1973-03-01 | 1974-10-29 |
-
1976
- 1976-02-24 SE SE7602245A patent/SE7602245L/en not_active Application Discontinuation
- 1976-03-17 AU AU12094/76A patent/AU524259B2/en not_active Expired
- 1976-03-18 CH CH343376A patent/CH614683A5/en not_active IP Right Cessation
- 1976-03-19 JP JP2935776A patent/JPS51117453A/en active Pending
- 1976-03-19 DK DK121176A patent/DK121176A/en unknown
- 1976-03-19 GB GB1113076A patent/GB1527424A/en not_active Expired
- 1976-03-19 CA CA 248281 patent/CA1063263A/en not_active Expired
- 1976-03-22 FR FR7608259A patent/FR2305400A1/en active Granted
- 1976-03-22 NL NL7602978A patent/NL7602978A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CA1063263A (en) | 1979-09-25 |
| FR2305400A1 (en) | 1976-10-22 |
| AU524259B2 (en) | 1982-09-09 |
| AU1209476A (en) | 1977-09-22 |
| SE7602245L (en) | 1976-09-23 |
| CH614683A5 (en) | 1979-12-14 |
| DK121176A (en) | 1976-09-23 |
| FR2305400B1 (en) | 1982-03-05 |
| NL7602978A (en) | 1976-09-24 |
| JPS51117453A (en) | 1976-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |