ATE207854T1 - Flotationsverfahren - Google Patents

Flotationsverfahren

Info

Publication number
ATE207854T1
ATE207854T1 AT93902472T AT93902472T ATE207854T1 AT E207854 T1 ATE207854 T1 AT E207854T1 AT 93902472 T AT93902472 T AT 93902472T AT 93902472 T AT93902472 T AT 93902472T AT E207854 T1 ATE207854 T1 AT E207854T1
Authority
AT
Austria
Prior art keywords
liquid
vessel
air
flotation process
zone
Prior art date
Application number
AT93902472T
Other languages
English (en)
Inventor
Andrew Eades
David Gordon Firston Stevenson
Original Assignee
Thames Water Utilities
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 Thames Water Utilities filed Critical Thames Water Utilities
Application granted granted Critical
Publication of ATE207854T1 publication Critical patent/ATE207854T1/de

Links

Classifications

    • 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
    • B03D1/1431—Dissolved air flotation machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/20—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
    • B01D24/205—Downward filtration without specifications about the filter material supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • 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
    • B03D1/02—Froth-flotation processes
    • 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
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor
    • 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
    • B03D1/24—Pneumatic
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2101/00—Types of filters having loose filtering material
    • B01D2101/02—Carbon filters
    • 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
    • B03D1/245—Injecting gas through perforated or porous area

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physical Water Treatments (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Fish Paste Products (AREA)
  • Laser Surgery Devices (AREA)
AT93902472T 1992-01-31 1993-01-28 Flotationsverfahren ATE207854T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929202153A GB9202153D0 (en) 1992-01-31 1992-01-31 Dissolved air flotation
PCT/GB1993/000176 WO1993015021A1 (en) 1992-01-31 1993-01-28 Dissolved air flotation

Publications (1)

Publication Number Publication Date
ATE207854T1 true ATE207854T1 (de) 2001-11-15

Family

ID=10709653

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93902472T ATE207854T1 (de) 1992-01-31 1993-01-28 Flotationsverfahren

Country Status (11)

Country Link
EP (1) EP0626932B1 (de)
JP (1) JPH07503177A (de)
AT (1) ATE207854T1 (de)
AU (1) AU673510B2 (de)
CA (1) CA2128729C (de)
DE (1) DE69331049D1 (de)
GB (2) GB9202153D0 (de)
NZ (1) NZ246672A (de)
PT (1) PT626932E (de)
WO (1) WO1993015021A1 (de)
ZA (1) ZA93626B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5516434A (en) * 1995-05-26 1996-05-14 Unicel, Inc. Single cell gas flotation separator with filter media
US5591347A (en) * 1995-05-26 1997-01-07 Unicel, Inc. Single cell gas flotation separator with filter media
US7157007B2 (en) * 2003-06-20 2007-01-02 National Tank Company Vertical gas induced flotation cell
US8034246B2 (en) * 2007-05-16 2011-10-11 Exxonmobil Research & Engineering Company Wastewater mercury removal process
US8075783B2 (en) * 2007-07-31 2011-12-13 Aquafiber Technologies Corp. Water remediation and biosolids collection system and associated methods
ES2363854B1 (es) 2009-07-10 2012-08-10 Acciona Agua, S.A.U. Tanque separador de partículas.
FR2995603B1 (fr) * 2012-09-19 2014-09-26 Veolia Water Solutions & Tech Procede de traitement d’eau comprenant une flottation combinee a une filtration gravitaire et installation correspondante
CN102992432A (zh) * 2012-12-20 2013-03-27 叶建锋 应用多相流泵微气浮去除藻类的方法及其装置
FR3061169B1 (fr) * 2016-12-22 2020-06-19 Suez International Installation et procede pour le traitement de l'eau
FR3121673A1 (fr) 2021-04-12 2022-10-14 Suez Groupe Installation et procede pour le traitement de l’eau

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB837373A (en) * 1958-09-02 1960-06-15 Shinzo Sumiya Improvements in or relating to froth flotation systems
BE666112A (de) * 1964-06-29
FR1515865A (fr) * 1966-06-14 1968-03-08 Saint Gobain Techn Nouvelles Perfectionnements à la séparation d'un liquide et d'un solide ou liquide immiscible en suspension
US3836460A (en) * 1972-03-27 1974-09-17 R Willis Process for removal of algae,diatoms and organic contaminants from water
CA1065789A (en) * 1974-02-11 1979-11-06 Ernest R. Ramirez Purification of industrial waste waters by flotation
US4176058A (en) * 1974-10-24 1979-11-27 Grobler Jacobus J Method means for de-silting water
GB1531775A (en) * 1975-04-16 1978-11-08 Swift & Co Gas flotation dewatering of waste water treatment wastes
NL7509342A (nl) * 1975-08-06 1977-02-08 Stamicarbon Werkwijze en inrichting voor het reinigen van afvalwater door middel van elektroflotatie.
GB1496191A (en) * 1975-12-16 1977-12-30 Clarke Chapman Ltd Method of and apparatus for clarifying water
DE2835709B2 (de) * 1978-08-16 1980-12-18 Wilhelm Roediger Gmbh + Co, 6450 Hanau Anlage zum Reinigen verschmutzten Wassers
NL8007096A (nl) * 1980-12-30 1982-07-16 Pielkenrood Vinitex Bv Inrichting voor het met behulp van gasbelletjes opdrijvend maken van een in een vloeistof gesuspendeerde bestanddelen.
JPS58124586A (ja) * 1982-01-19 1983-07-25 Shuichi Nakagawa 汚水洗浄処理装置
FI86293C (fi) * 1989-04-28 1992-08-10 Oiva Suutarinen Foerfarande foer rening av en vaetska fraon fasta och upploesta foeroreningar medelst ett flotationsfiltreringsfoerfarande.
WO1992020624A1 (en) * 1991-05-15 1992-11-26 Pec Research, Inc. Methods and apparatus for producing potable water

Also Published As

Publication number Publication date
WO1993015021A1 (en) 1993-08-05
ZA93626B (en) 1993-08-30
CA2128729C (en) 2005-06-07
CA2128729A1 (en) 1993-08-05
GB9301721D0 (en) 1993-03-17
JPH07503177A (ja) 1995-04-06
AU3364793A (en) 1993-09-01
DE69331049D1 (de) 2001-12-06
PT626932E (pt) 2002-03-28
NZ246672A (en) 1995-12-21
GB2263694B (en) 1995-08-23
GB9202153D0 (en) 1992-03-18
GB2263694A (en) 1993-08-04
EP0626932B1 (de) 2001-10-31
AU673510B2 (en) 1996-11-14
EP0626932A1 (de) 1994-12-07

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Legal Events

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