FR2268757A1 - Clarification of polluted water - by settling in circular pond with central pump for solids removal - Google Patents

Clarification of polluted water - by settling in circular pond with central pump for solids removal

Info

Publication number
FR2268757A1
FR2268757A1 FR7513270A FR7513270A FR2268757A1 FR 2268757 A1 FR2268757 A1 FR 2268757A1 FR 7513270 A FR7513270 A FR 7513270A FR 7513270 A FR7513270 A FR 7513270A FR 2268757 A1 FR2268757 A1 FR 2268757A1
Authority
FR
France
Prior art keywords
clarification
polluted water
settling
pond
solids removal
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.)
Withdrawn
Application number
FR7513270A
Other languages
French (fr)
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.)
ADKA MATIC
Original Assignee
ADKA MATIC
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
Priority claimed from NL7405775A external-priority patent/NL7405775A/en
Application filed by ADKA MATIC filed Critical ADKA MATIC
Publication of FR2268757A1 publication Critical patent/FR2268757A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • 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
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B01D21/12—Settling tanks with multiple outlets for the separated liquids with moving scrapers
    • B01D21/14—Settling tanks with multiple outlets for the separated liquids 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
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B01D21/16—Settling tanks with multiple outlets for the separated liquids provided with flocculating compartments
    • 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
    • B01D21/2433—Discharge mechanisms for floating 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
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1468—Discharge mechanisms for the sediments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biotechnology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physical Water Treatments (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Floating Material (AREA)

Abstract

Polluted water is mixed with a dispersing agent and allowed to settle in a large circular pond in which scrapers slowly rake solid deposits into a central sump for removal. Surface scum is drawn off and pumped away by a rotating skimmer assembly. Pre-treatment in an agitated flocculation chamber may also be used. The device operates automatically, is not prone to convection currents in the pond and may be stopped and restarted at will with affecting the efficiency of clarification.
FR7513270A 1974-04-29 1975-04-28 Clarification of polluted water - by settling in circular pond with central pump for solids removal Withdrawn FR2268757A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7405775A NL7405775A (en) 1974-04-29 1974-04-29 Clarification of polluted water - by settling in circular pond with central pump for solids removal
DE19742442045 DE2442045B2 (en) 1974-04-29 1974-09-03 DEVICE FOR WASTE WATER TREATMENT

Publications (1)

Publication Number Publication Date
FR2268757A1 true FR2268757A1 (en) 1975-11-21

Family

ID=25767632

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7513270A Withdrawn FR2268757A1 (en) 1974-04-29 1975-04-28 Clarification of polluted water - by settling in circular pond with central pump for solids removal

Country Status (5)

Country Link
BE (1) BE826477A (en)
DE (1) DE2442045B2 (en)
FR (1) FR2268757A1 (en)
NL (1) NL7503190A (en)
SE (1) SE7504884L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000423A1 (en) * 1978-08-21 1980-03-20 Feldmuehle Ag Method and device for cleaning suspension fibres
WO1987000220A1 (en) * 1985-06-24 1987-01-15 Sulzer-Escher Wyss Gmbh Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing
FR2592370A1 (en) * 1985-12-30 1987-07-03 Bectra Sa DEVICE FOR PURIFYING WATER.
EP0442463A1 (en) * 1990-02-16 1991-08-21 O.M.C. Officina Meccanica Collareda S.R.L. Apparatus for continuous purification of liquids
FR2863908A1 (en) * 2003-12-22 2005-06-24 Otv Sa Fluid treatment procedure and reactor for flocculation and separation uses submersed guide tube to create turbulent axial flow in flocculation tank

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032887A1 (en) * 1979-09-10 1981-04-02 Shinryo Air Conditioning Co., Ltd., Tokyo METHOD AND DEVICE FOR THICKENING SLUDGE

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000423A1 (en) * 1978-08-21 1980-03-20 Feldmuehle Ag Method and device for cleaning suspension fibres
WO1987000220A1 (en) * 1985-06-24 1987-01-15 Sulzer-Escher Wyss Gmbh Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing
FR2592370A1 (en) * 1985-12-30 1987-07-03 Bectra Sa DEVICE FOR PURIFYING WATER.
EP0234162A1 (en) * 1985-12-30 1987-09-02 BECTRA S.A. Bureau d'Etude et de Coordination de Travaux d'Assainissement Apparatus for the purification of water
EP0442463A1 (en) * 1990-02-16 1991-08-21 O.M.C. Officina Meccanica Collareda S.R.L. Apparatus for continuous purification of liquids
US5176835A (en) * 1990-02-16 1993-01-05 Fabio Perletti Apparatus for continuous purification of liquids
FR2863908A1 (en) * 2003-12-22 2005-06-24 Otv Sa Fluid treatment procedure and reactor for flocculation and separation uses submersed guide tube to create turbulent axial flow in flocculation tank
WO2005065832A1 (en) * 2003-12-22 2005-07-21 Otv Sa Method and reactor for flocculation treatment
US7648638B2 (en) 2003-12-22 2010-01-19 Otv S.A. Method for treating wastewater
US7906018B2 (en) 2003-12-22 2011-03-15 Otv S.A. System for treating wastewater

Also Published As

Publication number Publication date
NL7503190A (en) 1975-10-31
DE2442045A1 (en) 1975-11-06
BE826477A (en) 1975-06-30
DE2442045B2 (en) 1976-03-11
SE7504884L (en) 1975-10-30

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Legal Events

Date Code Title Description
ST Notification of lapse