IE45397L - Cleaning sand filters - Google Patents

Cleaning sand filters

Info

Publication number
IE45397L
IE45397L IE771610A IE161077A IE45397L IE 45397 L IE45397 L IE 45397L IE 771610 A IE771610 A IE 771610A IE 161077 A IE161077 A IE 161077A IE 45397 L IE45397 L IE 45397L
Authority
IE
Ireland
Prior art keywords
sand filters
cleaning sand
cleaning
filters
sand
Prior art date
Application number
IE771610A
Other versions
IE45397B1 (en
Original Assignee
Portals Water Treat Ltd
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 Portals Water Treat Ltd filed Critical Portals Water Treat Ltd
Publication of IE45397L publication Critical patent/IE45397L/en
Publication of IE45397B1 publication Critical patent/IE45397B1/en

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
    • B01D24/02—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
    • B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
    • 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
    • B01D24/22—Downward filtration, the filter material being supported by pervious surfaces
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
IE1610/77A 1976-08-06 1977-08-02 Improvements in or relating to apparatus for back-washing granular-bed filters IE45397B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32881/76A GB1546683A (en) 1976-08-06 1976-08-06 Apparatus for backwashing granular-bed filters

Publications (2)

Publication Number Publication Date
IE45397L true IE45397L (en) 1978-02-06
IE45397B1 IE45397B1 (en) 1982-08-11

Family

ID=10345430

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1610/77A IE45397B1 (en) 1976-08-06 1977-08-02 Improvements in or relating to apparatus for back-washing granular-bed filters

Country Status (4)

Country Link
AU (1) AU505207B2 (en)
GB (1) GB1546683A (en)
IE (1) IE45397B1 (en)
ZA (1) ZA773819B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189712B (en) * 1986-05-02 1989-11-29 Biwater Treatment Ltd Water filtration installations
US6312611B1 (en) * 1996-07-31 2001-11-06 The F.B. Leopold Co., Inc. Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes

Also Published As

Publication number Publication date
AU505207B2 (en) 1979-11-15
ZA773819B (en) 1978-05-30
IE45397B1 (en) 1982-08-11
GB1546683A (en) 1979-05-31
AU2657777A (en) 1979-01-04

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