FR2215994A1 - Combined microfilter and fibre depth filter - provides inexpensive water purification on small scale for villages or single houses - Google Patents

Combined microfilter and fibre depth filter - provides inexpensive water purification on small scale for villages or single houses

Info

Publication number
FR2215994A1
FR2215994A1 FR7403228A FR7403228A FR2215994A1 FR 2215994 A1 FR2215994 A1 FR 2215994A1 FR 7403228 A FR7403228 A FR 7403228A FR 7403228 A FR7403228 A FR 7403228A FR 2215994 A1 FR2215994 A1 FR 2215994A1
Authority
FR
France
Prior art keywords
microfilter
villages
combined
water purification
small scale
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
FR7403228A
Other languages
French (fr)
Other versions
FR2215994B1 (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.)
GHH Basel AG
Original Assignee
GHH Basel AG
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 GHH Basel AG filed Critical GHH Basel AG
Publication of FR2215994A1 publication Critical patent/FR2215994A1/en
Application granted granted Critical
Publication of FR2215994B1 publication Critical patent/FR2215994B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/148—Organic/inorganic mixed matrix membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Filtering Materials (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Filter pad is made up of a microfilter, e.g. plastic membrane sheet with pores of 0.005 mu m with a prefilter on one face in the form of a coarse cloth of thick fibres with its pores backed up with much finer fibres and filled with a material of very high specific surface area i.e. not less than 10m2/g such as a zeolite, activated carbon etc. The microfilter is effective in stopping dangerous bacteria chemicals, bad smells and tastes; the pre-filter is effective in preventing premature blinding of the microfilter.
FR7403228A 1973-02-01 1974-01-31 Combined microfilter and fibre depth filter - provides inexpensive water purification on small scale for villages or single houses Granted FR2215994A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH145373A CH556682A (en) 1973-02-01 1973-02-01 COMBINATION FILTER FOR CLEANING LIQUIDS, IN PARTICULAR WATER.

Publications (2)

Publication Number Publication Date
FR2215994A1 true FR2215994A1 (en) 1974-08-30
FR2215994B1 FR2215994B1 (en) 1977-06-10

Family

ID=4210815

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403228A Granted FR2215994A1 (en) 1973-02-01 1974-01-31 Combined microfilter and fibre depth filter - provides inexpensive water purification on small scale for villages or single houses

Country Status (13)

Country Link
JP (1) JPS49106062A (en)
AU (1) AU6488974A (en)
BE (1) BE810348A (en)
BR (1) BR7400658D0 (en)
CH (1) CH556682A (en)
DE (1) DE2404089A1 (en)
ES (1) ES422820A1 (en)
FR (1) FR2215994A1 (en)
IL (1) IL44074A0 (en)
IT (1) IT1004834B (en)
NL (1) NL7401213A (en)
TR (1) TR17700A (en)
ZA (1) ZA74419B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758504C2 (en) * 1977-12-28 1985-09-26 Vsesojuznoe naučno-proizvodstvennoe ob"edinenie celljulozno-bumažnoj promyšlennosti, Leningrad Process for the production of filter material
SE436693B (en) * 1981-06-04 1985-01-21 Bofors Ab SET TO MAKE A RECOVERABLE FILTER FOR GAS OR LIQUID SEPARATION
EP0159377A1 (en) * 1984-04-24 1985-10-30 Carl Schleicher & Schüll GmbH & Co. KG Filter and its use
US5942323A (en) * 1995-01-27 1999-08-24 Purafil, Inc. Fiber filter and methods of use thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1147179A (en) * 1955-04-18 1957-11-20 American Viscose Corp Processes and apparatus for the manufacture of filters for fluids
US3158532A (en) * 1960-12-06 1964-11-24 Pall Corp Tapered pore filter elements
US3353682A (en) * 1966-02-28 1967-11-21 Pall Corp Fluid-permeable fibrous multilayer materials and process of making the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1147179A (en) * 1955-04-18 1957-11-20 American Viscose Corp Processes and apparatus for the manufacture of filters for fluids
US3158532A (en) * 1960-12-06 1964-11-24 Pall Corp Tapered pore filter elements
US3353682A (en) * 1966-02-28 1967-11-21 Pall Corp Fluid-permeable fibrous multilayer materials and process of making the same

Also Published As

Publication number Publication date
BR7400658D0 (en) 1974-11-19
NL7401213A (en) 1974-08-05
AU6488974A (en) 1975-07-31
BE810348A (en) 1974-05-16
IL44074A0 (en) 1974-05-16
ZA74419B (en) 1974-12-24
TR17700A (en) 1975-07-23
IT1004834B (en) 1976-07-20
CH556682A (en) 1974-12-13
DE2404089A1 (en) 1974-08-15
ES422820A1 (en) 1976-11-01
JPS49106062A (en) 1974-10-08
FR2215994B1 (en) 1977-06-10

Similar Documents

Publication Publication Date Title
GB1495461A (en) Marking structure
GB1301015A (en) Gas-liquid separator
DE69010124D1 (en) Separation membrane and separation process.
FR2215994A1 (en) Combined microfilter and fibre depth filter - provides inexpensive water purification on small scale for villages or single houses
GB1448845A (en) Filter for use in water purification apparatus
AU517355B2 (en) Water filter
GB1398112A (en) Treatment of reverse osmosis/ultrafiltration membrane systems
FR2216377A1 (en) Filtration felt for liq. purificn. - with sheet of coarse fibres backed by network of fine fibres
FR2195596A1 (en) Percolating filter bed filler material - for waste water purification, comprising textile fibre material
FR2254520A1 (en) Domestic water-filter bag - of water-permeable paper or fabric, filled with active carbon and or ion exchanger
GB1526183A (en) Method of and means for reverse osmosis
FR2219002A1 (en) Bag for residual petroleum sludge - made of fibrous nonwoven sheet and water permeable reinforcement
FR2148022A1 (en) Dialysis membrane - contng adsorbent material coated with a polymeric membrane of controlled porosity
JPS5687415A (en) Laminated filter material and use thereof
FR2050700A5 (en) Reverse osmosis membrane support
GB1266150A (en)
GB1163894A (en) Improvements in or relating to Filters
GB1417573A (en) Treatment of water or aqueous waste material
EP0465649A4 (en) Composite semipermeable membrane and production thereof
FR2134782A5 (en) Industrial water filter - including porous fibrous pref polyester, mat
FR2409963A1 (en) Gravity filtration of water for drinking or mfr. of minerals - eliminates iron, manganese and calcium as well as argillaceous attachments
ES427092A1 (en) Immersion percolating filter
GB830296A (en) A method of disinfecting potable waters
FR2252299A1 (en) Filter for dewatering sewage sludge - with filter layer consisting of spun fleece of synthetic thermoplastic polymer
JPS56150403A (en) Improved osmotic treatment process

Legal Events

Date Code Title Description
ST Notification of lapse