DE3879839D1 - Einrichtung zur reinigung langsamer sandfilter. - Google Patents

Einrichtung zur reinigung langsamer sandfilter.

Info

Publication number
DE3879839D1
DE3879839D1 DE8888306783T DE3879839T DE3879839D1 DE 3879839 D1 DE3879839 D1 DE 3879839D1 DE 8888306783 T DE8888306783 T DE 8888306783T DE 3879839 T DE3879839 T DE 3879839T DE 3879839 D1 DE3879839 D1 DE 3879839D1
Authority
DE
Germany
Prior art keywords
slow sand
sand filters
cleaning
cleaning slow
liquid
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 - Fee Related
Application number
DE8888306783T
Other languages
English (en)
Other versions
DE3879839T2 (de
Inventor
Roger Davison Roger Davison
Michael John Bauer Micha Bauer
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.)
Thames Water Utilities Ltd
Original Assignee
Thames Water Utilities 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10624732&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3879839(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thames Water Utilities Ltd filed Critical Thames Water Utilities Ltd
Publication of DE3879839D1 publication Critical patent/DE3879839D1/de
Application granted granted Critical
Publication of DE3879839T2 publication Critical patent/DE3879839T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B01D24/20—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
    • B01D24/205—Downward filtration without specifications about the filter material supporting means
    • 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
    • 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
    • B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
    • B01D24/4689—Displacement of the filtering material to a compartment of the filtering device for regeneration
    • 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
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Harvester Elements (AREA)
DE88306783T 1987-10-02 1988-07-22 Einrichtung zur Reinigung langsamer Sandfilter. Expired - Fee Related DE3879839T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878723221A GB8723221D0 (en) 1987-10-02 1987-10-02 Slow sand filters

Publications (2)

Publication Number Publication Date
DE3879839D1 true DE3879839D1 (de) 1993-05-06
DE3879839T2 DE3879839T2 (de) 1993-10-14

Family

ID=10624732

Family Applications (1)

Application Number Title Priority Date Filing Date
DE88306783T Expired - Fee Related DE3879839T2 (de) 1987-10-02 1988-07-22 Einrichtung zur Reinigung langsamer Sandfilter.

Country Status (5)

Country Link
US (1) US4911831A (de)
EP (1) EP0310221B1 (de)
AT (1) ATE87495T1 (de)
DE (1) DE3879839T2 (de)
GB (1) GB8723221D0 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9203484D0 (en) * 1992-02-19 1992-04-08 Doity Engineering Limited A system for filling filter beds
CA2151367A1 (en) † 1992-12-10 1994-06-23 David Foster Removal of impurities
FR2706442B1 (fr) * 1993-06-14 1995-07-28 Morillon Corvol Courbot Sa Equipement de service pour bassin, réservoir d'eau ou analogue, notamment pour filtre lent à sable.
US5421995A (en) * 1993-07-01 1995-06-06 Jmo Holding, Inc. Sludge blanket level detector suspended from floating decanter
US6123858A (en) * 1993-10-27 2000-09-26 University Technologies International Inc. Slow sand filter for use with intermittently flowing water supply and method of use thereof
US5902488A (en) * 1997-09-09 1999-05-11 Prince; Dennis Scott Slow sand filter
GB2368541B (en) * 1998-04-08 2002-07-17 Weda Poolcleaner Ab Device for cleaning bottoms of pools with sand beds
SE511870C2 (sv) * 1998-04-08 1999-12-06 Weda Poolcleaner Ab Metod och anordning för bottenrening av bassänger med sandbotten
SE517199C2 (sv) * 2000-10-06 2002-05-07 Miodrag Jankovic Bottensugaggregat för ytrensning av sandbädden i ett långsamfilter
US6932286B2 (en) * 2001-11-07 2005-08-23 Fred P. Smith Combination drop and broadcast spreader
CA2387777C (en) * 2002-05-28 2008-04-01 Ms Filter Inc. Potable water treatment plant and method of maintaining same
WO2006138617A2 (en) * 2005-06-17 2006-12-28 Platt Michael D Top loading wedge with adjustably engageable bottom apparatus and method
US7754073B2 (en) * 2005-11-22 2010-07-13 Ultra Aquatic Technology Pty Ltd Method and apparatus for collecting and/or removing sludge
PL1920812T3 (pl) * 2006-11-13 2011-05-31 Ferdinand Doppstadt Urządzenie i sposób do uprzątania i wywożenia w szczególności warstwy piasku i do usuwania dywanów z alg w basenach filtracyjnych
DE102007023803B4 (de) 2007-05-21 2009-11-05 Schott Ag Verfahren zur Herstellung von Schichtsystemen mit Zwischenschichten sowie Gegenstand mit Schichtsystem mit Zwischenschichten
CA2854522C (en) 2013-06-18 2022-07-12 Cory Albers Systems and methods for storage and treatment of remediation materials
WO2018187842A1 (en) 2017-04-13 2018-10-18 Airrat Pty Ltd Sludge harvester improvements

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049361B (de) * 1959-01-29
DE62302C (de) * R. SCHMIDT in Dresden. Vom August 1891 ab Verfahren zur Herstellung von (Griffen, Heften und dergl. mit harter Schale und we-chem Kern
FR344396A (fr) * 1904-06-28 1904-11-03 Hiram Wheeler Blaisdell Appareil à nettoyer les surfaces des filtres à sable et autres
FR557656A (fr) * 1922-10-20 1923-08-13 Procédé et dispositif pour le nettoyage des filtres à sable de grande surface
FR758249A (fr) * 1933-07-11 1934-01-12 Procédé et appareil pour le nettoyage des couches filtrantes
US2327726A (en) * 1940-06-06 1943-08-24 Jr Charles Lose Filter bed cleaning
US4005019A (en) * 1974-09-27 1977-01-25 L.S. Love & Associates Limited Gravitational separator
CH608381A5 (en) * 1975-02-17 1979-01-15 Hermann Mueller Flushing system for sand filters and carbon filters
US4070978A (en) * 1976-07-01 1978-01-31 Virgilio Del P Floating apparatus for weeding and dredging waterways
US4104813A (en) * 1976-08-20 1978-08-08 Lindsey Duane A Muck dredging machine
JPS6015279B2 (ja) * 1977-11-01 1985-04-18 シャープ株式会社 メモリ付薄膜ｅｌ素子の維持駆動回路
DE2800628A1 (de) * 1978-01-07 1979-07-12 Zenith Maschf Gmbh Laengsraeumer fuer langsandfaenge von klaeranlagen
DE2861879D1 (en) * 1978-09-29 1982-07-22 Ballast Nedam Groep Nv Method and device for maintaining tools at a level below a water surface
US4290890A (en) * 1979-02-12 1981-09-22 Bauer William J Sludge dewatering process and vehicle for use in such process
US4291474A (en) * 1979-09-10 1981-09-29 Schmidt Frederick J Dredge swell compensator apparatus
US4413433A (en) * 1981-12-04 1983-11-08 Duverne Jean Claude M Apparatus for extracting muddy materials and feeding them to a treatment station
DE3439547A1 (de) * 1983-11-11 1985-05-30 VEB Projektierung Wasserwirtschaft Stammbetrieb des Kombinates Wassertechnik und Projektierung Wasserwirtschaft, DDR 4020 Halle Verfahren und vorrichtung zur filtration von fluessigkeiten
EP0185422B1 (de) * 1984-12-19 1990-02-07 Soil Machine Dynamics Limited Verfahren und Vorrichtung zum Ausheben von Boden
US4628623A (en) * 1985-03-11 1986-12-16 Deal Troy M Turbidity control system for dredge cutterheads
GB8610807D0 (en) * 1986-05-02 1986-06-11 Humphreys & Glasgow Ltd Filter carbon removal device

Also Published As

Publication number Publication date
EP0310221B1 (de) 1993-03-31
GB8723221D0 (en) 1987-11-04
ATE87495T1 (de) 1993-04-15
EP0310221A1 (de) 1989-04-05
US4911831A (en) 1990-03-27
DE3879839T2 (de) 1993-10-14

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee