GB1385358A - Apparatus for the biological purification of waste water - Google Patents
Apparatus for the biological purification of waste waterInfo
- Publication number
- GB1385358A GB1385358A GB1334872A GB1334872A GB1385358A GB 1385358 A GB1385358 A GB 1385358A GB 1334872 A GB1334872 A GB 1334872A GB 1334872 A GB1334872 A GB 1334872A GB 1385358 A GB1385358 A GB 1385358A
- Authority
- GB
- United Kingdom
- Prior art keywords
- helix
- blades
- rotor
- driven
- aerating
- 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
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
- C02F3/14—Activated sludge processes using surface aeration
- C02F3/18—Activated sludge processes using surface aeration the aerator having a horizontal axis
-
- 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
- B01F23/234—Surface aerating
- B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
-
- 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
1385358 Aerating agitating and circulating liquids GIREJAN 22 March 1972 [22 March 1971 15 Dec 1971] 13348/72 Heading B1C Apparatus for aerating water comprises a circulation channel 1 with a surface aerating rotor 3 having impeller blades 9 arranged in at least one helical path around it. The waterimpelling part of each block is transverse to the helix and the blades on each helix are closer to each other than to those on the next helix or turn of the same helix. The rotor may be parallel or angled to the flow path in the channel. As shown in Fig. 1 the helix has two starts; the blades may be separate or mounted on or integral with a helical strip (see Figs. 6-9, not shown). The rotor may be located in a venturi flame 10; in other arrangements there may be more than one rotor arranged in parallel or tandem (see Figs. 4 and 5, not shown). The rotor may be driven by a motor 6; or supported by floats and/or located by the currents of e.g. a river (see Fig. 15, not shown). In arrangements in which the rotor axis makes an acute angle with the flow path, the blades may be mounted on a continuous screw flight (18, Fig. 11, not shown) and the blades and helix angles arranged to produce a resultant thrust in the general direction of flow through the apparatus. Angled rotors may be mounted on a central wall 19, the blades being arranged in heelices of the same hand driven in opposite senses, or of opposite hand and driven in the same sense.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7109966A FR2130820A5 (en) | 1971-03-22 | 1971-03-22 | Aerator/circulator - for activated sludge effluent treatment plant |
| FR7145103A FR2165050A6 (en) | 1971-12-15 | 1971-12-15 | Aerator/circulator - for activated sludge effluent treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1385358A true GB1385358A (en) | 1975-02-26 |
Family
ID=26216278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1334872A Expired GB1385358A (en) | 1971-03-22 | 1972-03-22 | Apparatus for the biological purification of waste water |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE780951A (en) |
| CA (1) | CA957441A (en) |
| DE (1) | DE2212126A1 (en) |
| DK (1) | DK142841B (en) |
| GB (1) | GB1385358A (en) |
| IT (1) | IT953945B (en) |
| LU (1) | LU64999A1 (en) |
| NL (1) | NL7203754A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4437386A1 (en) * | 1994-10-19 | 1996-04-25 | Passavant Werke | Process and circulation basin for long-term aeration of wastewater treated in the aeration process |
-
1972
- 1972-03-09 IT IT6774272A patent/IT953945B/en active
- 1972-03-13 DE DE19722212126 patent/DE2212126A1/en active Pending
- 1972-03-20 BE BE780951A patent/BE780951A/en not_active IP Right Cessation
- 1972-03-20 CA CA137,581*7A patent/CA957441A/en not_active Expired
- 1972-03-20 LU LU64999D patent/LU64999A1/xx unknown
- 1972-03-20 DK DK129572AA patent/DK142841B/en not_active IP Right Cessation
- 1972-03-21 NL NL7203754A patent/NL7203754A/xx unknown
- 1972-03-22 GB GB1334872A patent/GB1385358A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7203754A (en) | 1972-09-26 |
| IT953945B (en) | 1973-08-10 |
| DK142841B (en) | 1981-02-09 |
| CA957441A (en) | 1974-11-05 |
| DE2212126A1 (en) | 1972-10-12 |
| BE780951A (en) | 1972-07-17 |
| DK142841C (en) | 1981-09-28 |
| LU64999A1 (en) | 1972-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |