NO923013D0 - Plastmantlet filterblokk for dreneringsgroeft - Google Patents
Plastmantlet filterblokk for dreneringsgroeftInfo
- Publication number
- NO923013D0 NO923013D0 NO1992923013A NO923013A NO923013D0 NO 923013 D0 NO923013 D0 NO 923013D0 NO 1992923013 A NO1992923013 A NO 1992923013A NO 923013 A NO923013 A NO 923013A NO 923013 D0 NO923013 D0 NO 923013D0
- Authority
- NO
- Norway
- Prior art keywords
- underdrain
- filter
- block
- concrete
- plastic
- Prior art date
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)
- Water Treatment By Sorption (AREA)
- External Artificial Organs (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)
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 |
---|---|
NO923013L NO923013L (no) | 1992-07-30 |
NO923013D0 true NO923013D0 (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)
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)
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 |
-
1990
- 1990-01-31 DK DK90906571.6T patent/DK0509988T3/da active
- 1990-01-31 ES ES90906571T patent/ES2084027T3/es not_active Expired - Lifetime
- 1990-01-31 DE DE69023923T patent/DE69023923T2/de not_active Expired - Fee Related
- 1990-01-31 EP EP90906571A patent/EP0509988B1/en not_active Expired - Lifetime
- 1990-01-31 WO PCT/US1990/000566 patent/WO1991011244A1/en active IP Right Grant
- 1990-01-31 AT AT90906571T patent/ATE130779T1/de not_active IP Right Cessation
-
1992
- 1992-07-30 NO NO923013A patent/NO303673B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0509988B1 (en) | 1995-11-29 |
NO303673B1 (no) | 1998-08-17 |
ES2084027T3 (es) | 1996-05-01 |
NO923013L (no) | 1992-07-30 |
DE69023923D1 (de) | 1996-01-11 |
EP0509988A4 (en) | 1993-06-02 |
WO1991011244A1 (en) | 1991-08-08 |
EP0509988A1 (en) | 1992-10-28 |
DK0509988T3 (da) | 1996-04-09 |
DE69023923T2 (de) | 1996-08-14 |
ATE130779T1 (de) | 1995-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM1K | Lapsed by not paying the annual fees |