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 tension

Info

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
Application number
FR7908457A
Other languages
French (fr)
Other versions
FR2452950B1 (en
Inventor
Jean-Claude Neveu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cellophane SA France
Original Assignee
Cellophane SA France
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cellophane SA France filed Critical Cellophane SA France
Priority to FR7908457A priority Critical patent/FR2452950A1/en
Publication of FR2452950A1 publication Critical patent/FR2452950A1/en
Application granted granted Critical
Publication of FR2452950B1 publication Critical patent/FR2452950B1/fr
Granted legal-status Critical Current

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.
FR7908457A 1979-04-04 1979-04-04 Decanter with lamellar flow channels between sloping surfaces - provided by sheets of synthetic polymer under tension Granted FR2452950A1 (en)

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 (9)

* Cited by examiner, † Cited by third party
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

Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
EXBK/75 *

Cited By (11)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2452950B1 (en) 1982-09-17

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