FR2190495A1 - Decantation vessel combining two sedimentation principles - to obtain maximum treatment rate for a given outflow entrainment of solids - Google Patents

Decantation vessel combining two sedimentation principles - to obtain maximum treatment rate for a given outflow entrainment of solids

Info

Publication number
FR2190495A1
FR2190495A1 FR7223671A FR7223671A FR2190495A1 FR 2190495 A1 FR2190495 A1 FR 2190495A1 FR 7223671 A FR7223671 A FR 7223671A FR 7223671 A FR7223671 A FR 7223671A FR 2190495 A1 FR2190495 A1 FR 2190495A1
Authority
FR
France
Prior art keywords
entrainment
solids
channels
obtain maximum
treatment rate
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
FR7223671A
Other languages
French (fr)
Other versions
FR2190495B1 (en
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.)
EUROP TRAITEMENT EAUX
Original Assignee
EUROP TRAITEMENT EAUX
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 EUROP TRAITEMENT EAUX filed Critical EUROP TRAITEMENT EAUX
Priority to FR7223671A priority Critical patent/FR2190495A1/en
Publication of FR2190495A1 publication Critical patent/FR2190495A1/en
Application granted granted Critical
Publication of FR2190495B1 publication Critical patent/FR2190495B1/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
    • B01D21/0057—Settling tanks provided with contact surfaces, e.g. baffles, particles with counter-current flow direction of liquid and solid particles
    • 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
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • 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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The vessel comprises a set of superimposed spaced apart, truncated cones or pyramids, of identical cross section and converging downwards to form narrow parallel riser channels between them, polluted inflow pours into the upper divergent mouth and the liq. rises, with progressively decreasing speed, up the channels, continually losing sediment which falls to the vessel floor. The high efficiency of this purificn. process relies on the principle of dividing the rising effluent into a series of narrow channels as the effluent progressively loses foward velocity.
FR7223671A 1972-06-30 1972-06-30 Decantation vessel combining two sedimentation principles - to obtain maximum treatment rate for a given outflow entrainment of solids Granted FR2190495A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7223671A FR2190495A1 (en) 1972-06-30 1972-06-30 Decantation vessel combining two sedimentation principles - to obtain maximum treatment rate for a given outflow entrainment of solids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7223671A FR2190495A1 (en) 1972-06-30 1972-06-30 Decantation vessel combining two sedimentation principles - to obtain maximum treatment rate for a given outflow entrainment of solids

Publications (2)

Publication Number Publication Date
FR2190495A1 true FR2190495A1 (en) 1974-02-01
FR2190495B1 FR2190495B1 (en) 1976-06-11

Family

ID=9101119

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7223671A Granted FR2190495A1 (en) 1972-06-30 1972-06-30 Decantation vessel combining two sedimentation principles - to obtain maximum treatment rate for a given outflow entrainment of solids

Country Status (1)

Country Link
FR (1) FR2190495A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232217A2 (en) * 1986-01-09 1987-08-12 Werner Nill Process and installation for purification of waste water

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1029843A (en) * 1950-06-14 1953-06-08 New sludge settling device
US2793186A (en) * 1954-01-08 1957-05-21 Ca Nat Research Council Apparatus for classifying or settling fluid suspensions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1029843A (en) * 1950-06-14 1953-06-08 New sludge settling device
US2793186A (en) * 1954-01-08 1957-05-21 Ca Nat Research Council Apparatus for classifying or settling fluid suspensions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232217A2 (en) * 1986-01-09 1987-08-12 Werner Nill Process and installation for purification of waste water
EP0232217A3 (en) * 1986-01-09 1988-06-29 Werner Nill Process and installation for purification of waste water

Also Published As

Publication number Publication date
FR2190495B1 (en) 1976-06-11

Similar Documents

Publication Publication Date Title
ZA724181B (en) Improvements in or relating to the separation of solids from liquids
GB1373705A (en) Gas absorption system and method
ZA722797B (en) Fluid flow control means
ES390821A1 (en) Vessel for the removal of oil on water
FR2138997B1 (en)
IE37455L (en) Separating particles from a liquid
CA955890A (en) Sensor controlled fluid jet ore separator
BE746629A (en) PROCESS FOR THE FORMATION OF SEMI-PERMEABLE MEMBRANES FOR DESALINATION OF BRINE AND MARINE WATER, BY HYPERFILTRATION, AND MEMBRANES PRODUCED BY THE SUSDIT PROCESS
FR2190495A1 (en) Decantation vessel combining two sedimentation principles - to obtain maximum treatment rate for a given outflow entrainment of solids
ZA732673B (en) Apparatus for the conversion of liquid phases of non-metallic substances,especially polymerizable or cristallizable substances,into solid phases
NL175406C (en) DEVICE FOR CLEARING SOLIDS CONTAINING LIQUIDS.
IT974941B (en) EQUIPMENT FOR THE INTEGRALLY BIOLOGICAL CLARIFICATION OF WASTE WATER BY MEANS OF DIFFERENT FLOW SPEEDS
GB1511077A (en) Purification of liquids
FR2120537A5 (en) Continuous centrifugal separator - for liquids of similar density applicable with sediment present
ES399586A1 (en) Apparatus for effecting purification of liquids by flotation
FR2118241A5 (en) Sewage settling tank - with inclined plates guiding upward flow
FR2196832A1 (en) Pulsed sedimentation separator - to remove suspended solids from liquid passed through settled slurry
GB1294304A (en) Improvements in sewage treatment plant
FR2184411A1 (en) Clarification of liquids - by successive additions of polyelectrolytes to flocculate suspended solids
FR2059001A5 (en) Water preparation and purifying plant
IL40030A0 (en) Centrifugal compressor-melter for use in the desalination of brackish water
FR2140547A1 (en) Surface aerator - with variable outlet area
FR2130467A1 (en) Oil/water sepn - partic for purifying wash water used in tank cleaning on oil tankers
NL7016263A (en) Liquid-liquid extraction columns - with increased flooding limit
Torpey Biological Treatment of Wastewater

Legal Events

Date Code Title Description
ST Notification of lapse