DK160418C - PROCEDURE AND AGGREGATE FOR MAINTAINING A FIND DISPERSION OF GAS IN A FLUID - Google Patents
PROCEDURE AND AGGREGATE FOR MAINTAINING A FIND DISPERSION OF GAS IN A FLUIDInfo
- Publication number
- DK160418C DK160418C DK387383A DK387383A DK160418C DK 160418 C DK160418 C DK 160418C DK 387383 A DK387383 A DK 387383A DK 387383 A DK387383 A DK 387383A DK 160418 C DK160418 C DK 160418C
- Authority
- DK
- Denmark
- Prior art keywords
- maintaining
- aggregate
- procedure
- fluid
- gas
- 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
- C02F3/22—Activated sludge processes using circulation pipes
- C02F3/223—Activated sludge processes using circulation pipes using "air-lift"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
- B01F25/51—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is circulated through a set of tubes, e.g. with gradual introduction of a component into the circulating flow
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F3/226—"Deep shaft" processes
-
- 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
Abstract
1. Process for maintaining a fine gas dispersion in liquids, wherein the gases are fed into the upper half of a vertically arranged circulation device under simultaneous mechanical revolution with a defined velocity of flow and by defined hydrostatic pressure, characterized in that the produced microbubbles are transported against their lifting force and with a greater velocity of flow in the down stream than in the up stream into the lower horizontal part of the device and in that pulsations and microwhirls are produced in the riser part of the device and afterwards an outgassing of the liquid takes place.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP82810366 | 1982-09-03 | ||
EP19820810366 EP0102435B1 (en) | 1982-09-03 | 1982-09-03 | Process and apparatus for maintaning a fine gas dispersion in liquids |
Publications (4)
Publication Number | Publication Date |
---|---|
DK387383D0 DK387383D0 (en) | 1983-08-24 |
DK387383A DK387383A (en) | 1984-03-04 |
DK160418B DK160418B (en) | 1991-03-11 |
DK160418C true DK160418C (en) | 1991-08-19 |
Family
ID=8190074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK387383A DK160418C (en) | 1982-09-03 | 1983-08-24 | PROCEDURE AND AGGREGATE FOR MAINTAINING A FIND DISPERSION OF GAS IN A FLUID |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0102435B1 (en) |
JP (1) | JPS5962394A (en) |
AT (1) | ATE19046T1 (en) |
CA (1) | CA1217582A (en) |
DE (1) | DE3270430D1 (en) |
DK (1) | DK160418C (en) |
ES (1) | ES525351A0 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1321135C (en) * | 1988-09-27 | 1993-08-10 | Union Carbide Corporation | Process for dissolving a gas in a liquid |
ES2141668B1 (en) * | 1997-10-30 | 2000-11-16 | Univ Oviedo | OPERATION SYSTEM AND FACILITIES WITH CYCLIC BLOWING ON THE TIME SCALE OF THE TIME OF CONTACT BETWEEN BUBBLES AND WATER, WITH APPLICATION IN BIOREACTORS AND INTEGRATED WATER TREATMENT PLANTS. |
DE19958489A1 (en) | 1999-12-04 | 2001-06-21 | Dupont Performance Coatings | Method and device for shear stressing liquid media, in particular coating agents |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1907278A1 (en) * | 1969-02-13 | 1970-08-27 | Ludwik Smolski | Circulation and agration of water |
JPS5551595Y2 (en) * | 1972-07-31 | 1980-12-01 | ||
IN141354B (en) * | 1973-05-16 | 1977-02-19 | Ici Ltd | |
GB1525930A (en) * | 1974-12-04 | 1978-09-27 | Ici Ltd | Circulation of gas/liquid mixtures |
CA1114961A (en) * | 1979-10-26 | 1981-12-22 | Canadian Industries Limited | Method for maintaining a constant gas to solids ratio in effluent from a long vertical shaft bioreactor |
-
1982
- 1982-09-03 EP EP19820810366 patent/EP0102435B1/en not_active Expired
- 1982-09-03 AT AT82810366T patent/ATE19046T1/en not_active IP Right Cessation
- 1982-09-03 DE DE8282810366T patent/DE3270430D1/en not_active Expired
-
1983
- 1983-08-24 DK DK387383A patent/DK160418C/en not_active IP Right Cessation
- 1983-09-02 ES ES525351A patent/ES525351A0/en active Granted
- 1983-09-02 CA CA000436001A patent/CA1217582A/en not_active Expired
- 1983-09-02 JP JP58161775A patent/JPS5962394A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ES8502621A1 (en) | 1985-01-16 |
DK160418B (en) | 1991-03-11 |
EP0102435B1 (en) | 1986-04-09 |
DE3270430D1 (en) | 1986-05-15 |
JPS5962394A (en) | 1984-04-09 |
ES525351A0 (en) | 1985-01-16 |
DK387383D0 (en) | 1983-08-24 |
EP0102435A1 (en) | 1984-03-14 |
DK387383A (en) | 1984-03-04 |
ATE19046T1 (en) | 1986-04-15 |
CA1217582A (en) | 1987-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |