AU505207B2 - Granular-bed backwash system - Google Patents

Granular-bed backwash system

Info

Publication number
AU505207B2
AU505207B2 AU26577/77A AU2657777A AU505207B2 AU 505207 B2 AU505207 B2 AU 505207B2 AU 26577/77 A AU26577/77 A AU 26577/77A AU 2657777 A AU2657777 A AU 2657777A AU 505207 B2 AU505207 B2 AU 505207B2
Authority
AU
Australia
Prior art keywords
granular
backwash system
bed backwash
bed
backwash
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.)
Expired
Application number
AU26577/77A
Other versions
AU2657777A (en
Inventor
W. J. & Metcalf S. M Brignac
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.)
Portals Water Treatment Ltd
Original Assignee
Portals Water Treatment 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 Treatment Ltd filed Critical Portals Water Treatment Ltd
Publication of AU2657777A publication Critical patent/AU2657777A/en
Application granted granted Critical
Publication of AU505207B2 publication Critical patent/AU505207B2/en
Expired 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
    • B01D24/02—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
AU26577/77A 1976-08-06 1977-06-29 Granular-bed backwash system Expired AU505207B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB32881/76 1976-08-06
GB32881/76A GB1546683A (en) 1976-08-06 1976-08-06 Apparatus for backwashing granular-bed filters

Publications (2)

Publication Number Publication Date
AU2657777A AU2657777A (en) 1979-01-04
AU505207B2 true AU505207B2 (en) 1979-11-15

Family

ID=10345430

Family Applications (1)

Application Number Title Priority Date Filing Date
AU26577/77A Expired AU505207B2 (en) 1976-08-06 1977-06-29 Granular-bed backwash system

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
AU2657777A (en) 1979-01-04
GB1546683A (en) 1979-05-31
IE45397B1 (en) 1982-08-11
IE45397L (en) 1978-02-06
ZA773819B (en) 1978-05-30

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