GB709174A - Apparatus for clarification treatment of solids-carrying liquids - Google Patents
Apparatus for clarification treatment of solids-carrying liquidsInfo
- Publication number
- GB709174A GB709174A GB2394752A GB2394752A GB709174A GB 709174 A GB709174 A GB 709174A GB 2394752 A GB2394752 A GB 2394752A GB 2394752 A GB2394752 A GB 2394752A GB 709174 A GB709174 A GB 709174A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartment
- truss
- clarification
- cage
- driven
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
- B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2427—The feed or discharge opening located at a distant position from the side walls
-
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- 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)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
709,174. Treating sewage ; softening water; gravity-separation apparatus. DORR CO. Sept. 24, 1952, No. 23947/52. Classes 46 and 111 Apparatus in which a clarification compartment surrounds a flocculation (or equivalent) compartment, and such as is exemplified in Specification 532,002, is characterized chiefly in that the bottom of the central compartment is at a lower level than that of the surrounding clarification compartment. Scrapers 36 operating on the bottom of a clarification zone Z2 are suspended directly from a truss arm 25 driven by a motor 29, and scrapers 34 operating on the bottom of a flocculating zone Z1 are attached to a cage 30 surrounding, and rotating upon a thrust bearing 31 on the top of, a central feed pier 13. The inner end of the truss 25 is connected to the cage 30 and thus to the bearing 31. Upstanding from the scraper arms 32 and 33 are paddle members 37 and between them are rotated at a greater speed paddle members 38 depending from arms 42 and 43 secured to a cage structure 41 mounted on a bearing 40 on top of the cage 30 and driven through a bevel gear 50 by a pinion 49 driven in turn by a motor 44 on the truss 25. Liquid fed into the pier 13 flows outwards at its top and passes downwards into the flocculation zone proper, defined generally by the overlapping portions O of the paddle members and, at the bottom, also by a radial shelf 23. Some solids settle ; the liquid carrying the remainder passes through slots 19 into the clarification zone Z2 from which clarified liquid overflows at E. Solids from both zones eventually reach a sump 24. In Fig. 1a (not shown) the paddles are dispensed with and, instead, radial perforated aerating pipes are suspended from the truss 25 in the inner compartment and are fed by a motor-driven blower located on the truss arm 25.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL90864D NL90864C (en) | 1952-09-24 | ||
GB2394752A GB709174A (en) | 1952-09-24 | 1952-09-24 | Apparatus for clarification treatment of solids-carrying liquids |
CH331224D CH331224A (en) | 1952-09-24 | 1953-09-21 | Sewage treatment plant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2394752A GB709174A (en) | 1952-09-24 | 1952-09-24 | Apparatus for clarification treatment of solids-carrying liquids |
GB331224X | 1952-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB709174A true GB709174A (en) | 1954-05-19 |
Family
ID=26256814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2394752A Expired GB709174A (en) | 1952-09-24 | 1952-09-24 | Apparatus for clarification treatment of solids-carrying liquids |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH331224A (en) |
GB (1) | GB709174A (en) |
NL (1) | NL90864C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2881922A (en) * | 1955-10-13 | 1959-04-14 | Process Engineers Inc | Flocculation |
US4008153A (en) * | 1974-04-29 | 1977-02-15 | Agrotechnika, Narodny Podnik | Reactor for purification of water by fluid filtration |
-
0
- NL NL90864D patent/NL90864C/xx active
-
1952
- 1952-09-24 GB GB2394752A patent/GB709174A/en not_active Expired
-
1953
- 1953-09-21 CH CH331224D patent/CH331224A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2881922A (en) * | 1955-10-13 | 1959-04-14 | Process Engineers Inc | Flocculation |
US4008153A (en) * | 1974-04-29 | 1977-02-15 | Agrotechnika, Narodny Podnik | Reactor for purification of water by fluid filtration |
Also Published As
Publication number | Publication date |
---|---|
NL90864C (en) | |
CH331224A (en) | 1958-07-15 |
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