FR2108160A1 - Guiding device for floated matter - in flotation sepn appts - Google Patents

Guiding device for floated matter - in flotation sepn appts

Info

Publication number
FR2108160A1
FR2108160A1 FR7032998A FR7032998A FR2108160A1 FR 2108160 A1 FR2108160 A1 FR 2108160A1 FR 7032998 A FR7032998 A FR 7032998A FR 7032998 A FR7032998 A FR 7032998A FR 2108160 A1 FR2108160 A1 FR 2108160A1
Authority
FR
France
Prior art keywords
flotation
matter
appts
floated
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
FR7032998A
Other languages
French (fr)
Other versions
FR2108160B1 (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.)
Suez International SAS
Original Assignee
Degremont SA
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 Degremont SA filed Critical Degremont SA
Priority to FR7032998A priority Critical patent/FR2108160A1/en
Publication of FR2108160A1 publication Critical patent/FR2108160A1/en
Application granted granted Critical
Publication of FR2108160B1 publication Critical patent/FR2108160B1/fr
Granted 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/465—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electroflotation
    • 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
    • B03D1/1462—Discharge mechanisms for the froth
    • 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
    • B03D1/1481—Flotation machines with a plurality of parallel plates
    • 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
    • B03D1/1487—Means for cleaning or maintenance
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physical Water Treatments (AREA)

Abstract

Materials suspended in a liq. are sepd. by flotation or by electroflotation so that the floated matter can be evacuated continuously. the emission of very small bubbles of gas which become caught in the solid matter cuase the ascension of the latter to the free surface of the liq.; the particles then group together to form a flotation cake. The guiding device consists of a network of fixed surfaces placed side-by-side to form a grid mesh in the midst of the floated matter in a flotation appts. of suitable dimentions. The grid mesh is immersed in the upper part of the appts. and projects several cms. beyond the surface of the liq. The floated matter is evacuated from the top of the flotation cake by motor-driven rakes and by overflow gutters arranged on the free surface of the appts. When applied to the flotation of activated sludges, the flotation cake can be allowed to grow in thickness by press. from below, and natural evapn. in the atmos. so that the floated matter can be conc. to the extent that one kg. of dry matter may be obtd. from 19.6 kg. of sludge.
FR7032998A 1970-09-11 1970-09-11 Guiding device for floated matter - in flotation sepn appts Granted FR2108160A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7032998A FR2108160A1 (en) 1970-09-11 1970-09-11 Guiding device for floated matter - in flotation sepn appts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7032998A FR2108160A1 (en) 1970-09-11 1970-09-11 Guiding device for floated matter - in flotation sepn appts

Publications (2)

Publication Number Publication Date
FR2108160A1 true FR2108160A1 (en) 1972-05-19
FR2108160B1 FR2108160B1 (en) 1973-07-13

Family

ID=9061182

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7032998A Granted FR2108160A1 (en) 1970-09-11 1970-09-11 Guiding device for floated matter - in flotation sepn appts

Country Status (1)

Country Link
FR (1) FR2108160A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459782A1 (en) * 1979-06-27 1981-01-16 Kh Polt I Im V I Lenina ELECTROCHEMICAL PURIFICATION APPARATUS FOR POLLUTED LIQUIDS
EP0641291A1 (en) * 1992-05-20 1995-03-08 KROFTA, Milos Lamellar apparatus and method for clarifying water

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121680A (en) * 1958-10-27 1964-02-18 Yoemans Brothers Company Method and apparatus for treating fluid material with suspended solids

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121680A (en) * 1958-10-27 1964-02-18 Yoemans Brothers Company Method and apparatus for treating fluid material with suspended solids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459782A1 (en) * 1979-06-27 1981-01-16 Kh Polt I Im V I Lenina ELECTROCHEMICAL PURIFICATION APPARATUS FOR POLLUTED LIQUIDS
EP0641291A1 (en) * 1992-05-20 1995-03-08 KROFTA, Milos Lamellar apparatus and method for clarifying water
TR26685A (en) * 1992-05-20 1995-03-15 Krofta Milos LAMELLAR APPARATUS AND METHOD FOR WATER TREATMENT.
EP0641291A4 (en) * 1992-05-20 1995-06-28 Milos Krofta Lamellar apparatus and method for clarifying water.

Also Published As

Publication number Publication date
FR2108160B1 (en) 1973-07-13

Similar Documents

Publication Publication Date Title
GB1531775A (en) Gas flotation dewatering of waste water treatment wastes
GB1214677A (en) Process and plant for biological purification of waste water and sewage
JPS558896A (en) Method of changing particle floating in liquid into particle with floating capacity by air bubble and its device
FR2137611B1 (en)
US3828935A (en) Device for removing floated material in flotation processes
FR2108160A1 (en) Guiding device for floated matter - in flotation sepn appts
FR2164642A1 (en) Industrial waste water treatment plant - for heavily contaminated waste esp including oil etc
JPS55134618A (en) Concentrating device for sludge polluted with microbe
EP0053094A3 (en) Method and device for separating particulate solid materials from their mixture with liquids, such as gases from such mixtures, and application of the method
FR2379483A1 (en) Floating clarifier for waste water sewage - with inclined surfaces for collecting activated sludge for recirculation
SE427088B (en) DEVICE FOR SEPARATION OF SUSPENDED MATERIAL BY FLOTATION
ES456300A1 (en) Method of and apparatus for separating gas from liquid during treatment of waste liquid
FR2028628A5 (en) Water filter
JPS54144761A (en) Method of treating waste water containing oil
FR2236624A1 (en) Cork bark remover and collector - upper immersed conveyor collects cork, lower immersed conveyor collects wood
FR2196832A1 (en) Pulsed sedimentation separator - to remove suspended solids from liquid passed through settled slurry
JPS5334357A (en) Waste water treating process utilizing float-up separation
JPS52151254A (en) Waste water treating device
JPS51125956A (en) Method and apparatus for purification of waste liquor
JPS528568A (en) Method and device for continuous filter dehydration of suspended mater ial
JPS56100696A (en) Treatment of waste water
FR2381722A1 (en) Clear water collecting device for purificn. tank - with triangular enclosure having vertical intake and right-angled exit at top
GB1384168A (en) Method and apparatus for removing floating material from the surface of a body of liquid
JPS51144064A (en) Method of treating waste water using a porous material
Thanh et al. Oil separation from oily wastewater by inclined plates

Legal Events

Date Code Title Description
ST Notification of lapse