FR2338066A1 - Filter for liqs., esp. water - having two particulate filter media with slightly different densities - Google Patents

Filter for liqs., esp. water - having two particulate filter media with slightly different densities

Info

Publication number
FR2338066A1
FR2338066A1 FR7701002A FR7701002A FR2338066A1 FR 2338066 A1 FR2338066 A1 FR 2338066A1 FR 7701002 A FR7701002 A FR 7701002A FR 7701002 A FR7701002 A FR 7701002A FR 2338066 A1 FR2338066 A1 FR 2338066A1
Authority
FR
France
Prior art keywords
filter
liqs
water
esp
filtration
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
FR7701002A
Other languages
French (fr)
Other versions
FR2338066B3 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2338066A1 publication Critical patent/FR2338066A1/en
Application granted granted Critical
Publication of FR2338066B3 publication Critical patent/FR2338066B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01D24/007—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series connection
    • B01D24/008—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series connection arranged concentrically or coaxially
    • 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
    • B01D24/10—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 held in a closed container
    • B01D24/18—Combined upward and downward filtration
    • 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
    • B01D24/38—Feed or discharge devices
    • B01D24/40—Feed or discharge devices for feeding
    • B01D24/407—Feed or discharge devices for feeding provoking a tangential stream
    • 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
    • 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
    • B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)

Abstract

A filter for liqs. has a filtration vessel contg. filtration materials whose densities differ slightly from one another and lie on either side of the density of the liq. to be filtered. Compared with conventional filters employing particulate filter media, the filter has a higher efficiency at a lower operating cost. The filtration efficiency can be twice as high for the same press. drop, and the plant requires less space. Regeneration with reverse-flow purging can be carried out more effectively than in conventional plants, and the operating cycle period is longer. Used esp. for water purifcn.
FR7701002A 1976-01-16 1977-01-14 Filter for liqs., esp. water - having two particulate filter media with slightly different densities Granted FR2338066A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762601555 DE2601555A1 (en) 1976-01-16 1976-01-16 DEVICE FOR LIQUID CLEANING

Publications (2)

Publication Number Publication Date
FR2338066A1 true FR2338066A1 (en) 1977-08-12
FR2338066B3 FR2338066B3 (en) 1980-11-07

Family

ID=5967614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7701002A Granted FR2338066A1 (en) 1976-01-16 1977-01-14 Filter for liqs., esp. water - having two particulate filter media with slightly different densities

Country Status (2)

Country Link
DE (1) DE2601555A1 (en)
FR (1) FR2338066A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503723A1 (en) * 1985-02-04 1986-08-14 Leningradskij inženerno-stroitel'nyj institut, Leningrad Apparatus for water treatment for fish culture tanks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010028116B4 (en) * 2010-04-22 2012-06-06 Wolfgang Tilz Rotary buffer filter for removing particulate and / or dissolved particles from, in particular, stagnant waters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503723A1 (en) * 1985-02-04 1986-08-14 Leningradskij inženerno-stroitel'nyj institut, Leningrad Apparatus for water treatment for fish culture tanks

Also Published As

Publication number Publication date
FR2338066B3 (en) 1980-11-07
DE2601555A1 (en) 1977-07-21

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Legal Events

Date Code Title Description
ST Notification of lapse