NO923013L - Plastmantlet filterblokk for dreneringsgroeft - Google Patents

Plastmantlet filterblokk for dreneringsgroeft

Info

Publication number
NO923013L
NO923013L NO92923013A NO923013A NO923013L NO 923013 L NO923013 L NO 923013L NO 92923013 A NO92923013 A NO 92923013A NO 923013 A NO923013 A NO 923013A NO 923013 L NO923013 L NO 923013L
Authority
NO
Norway
Prior art keywords
underdrain
filter
block
concrete
plastic
Prior art date
Application number
NO92923013A
Other languages
English (en)
Other versions
NO923013D0 (no
NO303673B1 (no
Inventor
Richard D Gresh
Robert B Netherland
Original Assignee
Tetra Tech
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 Tetra Tech filed Critical Tetra Tech
Publication of NO923013D0 publication Critical patent/NO923013D0/no
Publication of NO923013L publication Critical patent/NO923013L/no
Publication of NO303673B1 publication Critical patent/NO303673B1/no

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
    • B01D24/20—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
    • B01D24/24—Downward filtration, the container having distribution or collection headers or pervious conduits
    • 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)
  • Filtering Materials (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Centrifugal Separators (AREA)
  • Water Treatment By Sorption (AREA)
  • External Artificial Organs (AREA)
NO923013A 1990-01-31 1992-07-30 Plastmantlet filterblokk for dreneringsgr°ft NO303673B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1990/000566 WO1991011244A1 (en) 1990-01-31 1990-01-31 Plastic-jacketed filter underdrain block

Publications (3)

Publication Number Publication Date
NO923013D0 NO923013D0 (no) 1992-07-30
NO923013L true NO923013L (no) 1992-07-30
NO303673B1 NO303673B1 (no) 1998-08-17

Family

ID=22220654

Family Applications (1)

Application Number Title Priority Date Filing Date
NO923013A NO303673B1 (no) 1990-01-31 1992-07-30 Plastmantlet filterblokk for dreneringsgr°ft

Country Status (7)

Country Link
EP (1) EP0509988B1 (no)
AT (1) ATE130779T1 (no)
DE (1) DE69023923T2 (no)
DK (1) DK0509988T3 (no)
ES (1) ES2084027T3 (no)
NO (1) NO303673B1 (no)
WO (1) WO1991011244A1 (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19520861C2 (de) * 1995-06-08 1997-04-24 Wetzel & Partner Ingenieurgese Vorrichtung zum Rückspülen großflächiger Filter
WO1997018881A1 (de) * 1995-11-17 1997-05-29 Ct Umwelttechnik Ag Rückspülbares filterbecken mit drainagerohren
CN103418168A (zh) * 2012-05-23 2013-12-04 李昊岩 一种免堵塞、免板结的气水分配系统
WO2018213444A1 (en) * 2017-05-16 2018-11-22 Xylem Water Solutions Zelienople Llc Self-cleaning, groutless, filter underdrain
CN109231422A (zh) * 2018-08-30 2019-01-18 广东卓信环境科技股份有限公司 一种滤砖及滤砖层施工方法
CN112824329B (zh) * 2019-11-20 2022-05-17 南京大学 一种模块化滤池布水布气装置及其系统和应用方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499325A (en) * 1947-06-07 1950-02-28 Francis Hankin & Co Ltd Filtering apparatus
US2818977A (en) * 1955-04-08 1958-01-07 Robert F Mcgivern Filter bottoms
US3440788A (en) * 1965-06-11 1969-04-29 Arthur B Merget Building blocks with a shell containing a filler and having projections and depressions connected by tubes
DE2632040C2 (de) * 1976-07-16 1983-12-29 Mengeringhausen, Max, Dipl.-Ing. Dr.-Ing., 8700 Würzburg Verfahren zur Herstellung einer Verbundbauplatte
US4132043A (en) * 1977-02-22 1979-01-02 H. B. Fuller Company Structural units
US4133766A (en) * 1977-03-11 1979-01-09 Koppers Company, Inc. Filter media support and containment system
US4340478A (en) * 1981-08-18 1982-07-20 The Dehydro Corporation Filter media and filter apparatus
US4707257A (en) * 1986-05-29 1987-11-17 The Graver Company Air/water distributor underdrain

Also Published As

Publication number Publication date
NO923013D0 (no) 1992-07-30
EP0509988A4 (en) 1993-06-02
EP0509988B1 (en) 1995-11-29
EP0509988A1 (en) 1992-10-28
DE69023923T2 (de) 1996-08-14
ES2084027T3 (es) 1996-05-01
DE69023923D1 (de) 1996-01-11
WO1991011244A1 (en) 1991-08-08
DK0509988T3 (da) 1996-04-09
NO303673B1 (no) 1998-08-17
ATE130779T1 (de) 1995-12-15

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees