FR2452950A1 - Decanter with lamellar flow channels between sloping surfaces - provided by sheets of synthetic polymer under tension - Google Patents
Decanter with lamellar flow channels between sloping surfaces - provided by sheets of synthetic polymer under tensionInfo
- Publication number
- FR2452950A1 FR2452950A1 FR7908457A FR7908457A FR2452950A1 FR 2452950 A1 FR2452950 A1 FR 2452950A1 FR 7908457 A FR7908457 A FR 7908457A FR 7908457 A FR7908457 A FR 7908457A FR 2452950 A1 FR2452950 A1 FR 2452950A1
- Authority
- FR
- France
- Prior art keywords
- pref
- decanter
- sheets
- lamellar flow
- liq
- 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.)
- Granted
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
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0069—Making of contact surfaces, structural details, materials therefor
- B01D21/0072—Means for adjusting, moving or controlling the position or inclination of the contact surfaces, e.g. for optimising the particle-liquid separation, for removing the settled particles, for preventing fouling
-
- 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
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0045—Plurality of essentially parallel plates
-
- 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
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0069—Making of contact surfaces, structural details, materials therefor
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Centrifugal Separators (AREA)
Abstract
A lamellar flow decanter of the type in which a liq. suspension is channelled between a series of parallel surfaces inclined to the horizontal. The surfaces are now provided by sheets of synthetic polymers held under tension. The thickness of each sheet is pref. between 30 microns and 1 mm. The film material is pref. selected as a polyolefin, a P.V.C., a linear polyester or a butyl or nitrile rubber. The film material pref. offers an elastic elongation of not less than 3% at 23 deg.C under a tensile stress not exceeding 80% of that at which plastic deformation commences. In the decanter, the plastic film surfaces are set at an angle to the horizontal which is pref. not less than 45 deg. Used as lamellar flow channel surfaces for decanting a liq. suspension in order to separate a clarified liq. from a sediment. For efficient, lamellar flow, the surfaces must be constantly spaced so plates have had to be stiff, heavy and expensive. These plates together with obstructive fittings, are now replaced with plastic sheets which are inexpensively made and easily fitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7908457A FR2452950A1 (en) | 1979-04-04 | 1979-04-04 | Decanter with lamellar flow channels between sloping surfaces - provided by sheets of synthetic polymer under tension |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7908457A FR2452950A1 (en) | 1979-04-04 | 1979-04-04 | Decanter with lamellar flow channels between sloping surfaces - provided by sheets of synthetic polymer under tension |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2452950A1 true FR2452950A1 (en) | 1980-10-31 |
FR2452950B1 FR2452950B1 (en) | 1982-09-17 |
Family
ID=9223937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7908457A Granted FR2452950A1 (en) | 1979-04-04 | 1979-04-04 | Decanter with lamellar flow channels between sloping surfaces - provided by sheets of synthetic polymer under tension |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2452950A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588483A1 (en) * | 1985-10-15 | 1987-04-17 | Omnium Traitement Valorisa | Lamellar separator with horizontal circulation |
US4957628A (en) * | 1989-05-19 | 1990-09-18 | Schulz Christopher R | Apparatus for gravity separation of particles from liquid |
FR2679545A1 (en) * | 1991-07-26 | 1993-01-29 | Chapuis Philippe | Device for the sedimentation of aqueous effluents |
US5338449A (en) * | 1991-09-12 | 1994-08-16 | Turumisoda Kabushiki Kaisya | Brine refining apparatus |
US5391306A (en) * | 1993-07-30 | 1995-02-21 | Meurer Research, Inc. | Settler with preset outlet area deck and variable angle removable lamina and method of using settler |
US5429752A (en) * | 1993-02-16 | 1995-07-04 | Presby; David W. | Means for precipitating out suspended solids in septic tank liquids |
WO1996041669A1 (en) * | 1995-06-08 | 1996-12-27 | Parzival Beteiligungen Ag | Process and device for removing impurities from a liquid |
CN111194237A (en) * | 2017-08-09 | 2020-05-22 | 塞莱默水处理齐利诺普尔有限公司 | Clarification device for water treatment |
JP2020530386A (en) * | 2017-08-09 | 2020-10-22 | ザイレム・ウォーター・ソリューションズ・ズィーリアノウプル・エルエルシー | Purification device for water treatment |
EP4188573A4 (en) * | 2020-07-31 | 2024-08-28 | Xylem Water Solutions Zelienople Llc | Tensioner for lamella settler |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB635611A (en) * | 1945-07-31 | 1950-04-12 | Jean Charles Seailles | Improved settling tanks |
FR1014112A (en) * | 1950-03-09 | 1952-08-11 | Improvement of blade settling tanks | |
US3491892A (en) * | 1968-04-15 | 1970-01-27 | Neptune Microflo Inc | Multichannel device for liquid treatment |
DE2242613A1 (en) * | 1972-08-30 | 1974-03-14 | Bamag Verfahrenstechnik Gmbh | Water treatment plant - with gravel filter and pre-clarifier sedimentation tank |
FR2348156A1 (en) * | 1976-04-14 | 1977-11-10 | See Epuration Entreprises Sa | Compact plant for prepn. of potable water - with all stages in single transportable tank |
-
1979
- 1979-04-04 FR FR7908457A patent/FR2452950A1/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB635611A (en) * | 1945-07-31 | 1950-04-12 | Jean Charles Seailles | Improved settling tanks |
FR1014112A (en) * | 1950-03-09 | 1952-08-11 | Improvement of blade settling tanks | |
US3491892A (en) * | 1968-04-15 | 1970-01-27 | Neptune Microflo Inc | Multichannel device for liquid treatment |
DE2242613A1 (en) * | 1972-08-30 | 1974-03-14 | Bamag Verfahrenstechnik Gmbh | Water treatment plant - with gravel filter and pre-clarifier sedimentation tank |
FR2348156A1 (en) * | 1976-04-14 | 1977-11-10 | See Epuration Entreprises Sa | Compact plant for prepn. of potable water - with all stages in single transportable tank |
Non-Patent Citations (1)
Title |
---|
EXBK/75 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588483A1 (en) * | 1985-10-15 | 1987-04-17 | Omnium Traitement Valorisa | Lamellar separator with horizontal circulation |
US4957628A (en) * | 1989-05-19 | 1990-09-18 | Schulz Christopher R | Apparatus for gravity separation of particles from liquid |
FR2679545A1 (en) * | 1991-07-26 | 1993-01-29 | Chapuis Philippe | Device for the sedimentation of aqueous effluents |
WO1993002762A1 (en) * | 1991-07-26 | 1993-02-18 | Philippe Chapuis | Waste water clarification device |
US5338449A (en) * | 1991-09-12 | 1994-08-16 | Turumisoda Kabushiki Kaisya | Brine refining apparatus |
US5429752A (en) * | 1993-02-16 | 1995-07-04 | Presby; David W. | Means for precipitating out suspended solids in septic tank liquids |
US5391306A (en) * | 1993-07-30 | 1995-02-21 | Meurer Research, Inc. | Settler with preset outlet area deck and variable angle removable lamina and method of using settler |
WO1996041669A1 (en) * | 1995-06-08 | 1996-12-27 | Parzival Beteiligungen Ag | Process and device for removing impurities from a liquid |
CN111194237A (en) * | 2017-08-09 | 2020-05-22 | 塞莱默水处理齐利诺普尔有限公司 | Clarification device for water treatment |
JP2020530386A (en) * | 2017-08-09 | 2020-10-22 | ザイレム・ウォーター・ソリューションズ・ズィーリアノウプル・エルエルシー | Purification device for water treatment |
EP3664919A4 (en) * | 2017-08-09 | 2021-05-05 | Xylem Water Solutions Zelienople LLC | Clarifier for water treatment |
EP4188573A4 (en) * | 2020-07-31 | 2024-08-28 | Xylem Water Solutions Zelienople Llc | Tensioner for lamella settler |
Also Published As
Publication number | Publication date |
---|---|
FR2452950B1 (en) | 1982-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |