CA1313504C - Systeme filtrant de drainage souterrain - Google Patents

Systeme filtrant de drainage souterrain

Info

Publication number
CA1313504C
CA1313504C CA000569692A CA569692A CA1313504C CA 1313504 C CA1313504 C CA 1313504C CA 000569692 A CA000569692 A CA 000569692A CA 569692 A CA569692 A CA 569692A CA 1313504 C CA1313504 C CA 1313504C
Authority
CA
Canada
Prior art keywords
air
arches
water
designs
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 - Lifetime
Application number
CA000569692A
Other languages
English (en)
Inventor
John B. Hambley
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.)
Newtech Filter Systems Inc
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
Priority to CA000569692A priority Critical patent/CA1313504C/fr
Application granted granted Critical
Publication of CA1313504C publication Critical patent/CA1313504C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/007Filters 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02Filters 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
    • B01D24/20Filters 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
    • B01D24/22Downward filtration, the filter material being supported by pervious surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • B01D24/4626Construction of spray heads specially adapted for regeneration of the filter material or for filtrate discharging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D24/00Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46Regenerating the filtering material in the filter
    • B01D24/4631Counter-current flushing, e.g. by air

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
CA000569692A 1988-06-16 1988-06-16 Systeme filtrant de drainage souterrain Expired - Lifetime CA1313504C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000569692A CA1313504C (fr) 1988-06-16 1988-06-16 Systeme filtrant de drainage souterrain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000569692A CA1313504C (fr) 1988-06-16 1988-06-16 Systeme filtrant de drainage souterrain

Publications (1)

Publication Number Publication Date
CA1313504C true CA1313504C (fr) 1993-02-09

Family

ID=4138222

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000569692A Expired - Lifetime CA1313504C (fr) 1988-06-16 1988-06-16 Systeme filtrant de drainage souterrain

Country Status (1)

Country Link
CA (1) CA1313504C (fr)

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Legal Events

Date Code Title Description
MKEX Expiry