IT1241991B - Complesso a filtro per drenaggio. - Google Patents

Complesso a filtro per drenaggio.

Info

Publication number
IT1241991B
IT1241991B IT48128A IT4812890A IT1241991B IT 1241991 B IT1241991 B IT 1241991B IT 48128 A IT48128 A IT 48128A IT 4812890 A IT4812890 A IT 4812890A IT 1241991 B IT1241991 B IT 1241991B
Authority
IT
Italy
Prior art keywords
filter drainage
drainage complex
complex
filter
drainage
Prior art date
Application number
IT48128A
Other languages
English (en)
Other versions
IT9048128A0 (it
IT9048128A1 (it
Inventor
Alfonso J Soriente
Original Assignee
Graver Co
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 Graver Co filed Critical Graver Co
Publication of IT9048128A0 publication Critical patent/IT9048128A0/it
Publication of IT9048128A1 publication Critical patent/IT9048128A1/it
Application granted granted Critical
Publication of IT1241991B publication Critical patent/IT1241991B/it

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
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4626—Construction of spray heads specially adapted for regeneration of the filter material or for filtrate discharging

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
IT48128A 1989-07-11 1990-07-10 Complesso a filtro per drenaggio. IT1241991B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/378,261 US5028322A (en) 1989-07-11 1989-07-11 Low profile underdrain strainer assembly with improved distribution/fastening means

Publications (3)

Publication Number Publication Date
IT9048128A0 IT9048128A0 (it) 1990-07-10
IT9048128A1 IT9048128A1 (it) 1992-01-10
IT1241991B true IT1241991B (it) 1994-02-02

Family

ID=23492396

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48128A IT1241991B (it) 1989-07-11 1990-07-10 Complesso a filtro per drenaggio.

Country Status (6)

Country Link
US (1) US5028322A (it)
JP (1) JPH03114502A (it)
AU (1) AU627045B2 (it)
CA (1) CA2016404C (it)
GB (1) GB2233575B (it)
IT (1) IT1241991B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE136012T1 (de) * 1991-06-07 1996-04-15 Sulzer Chemtech Ag Festbettreaktor zum biologischen abwasserreinigen
US5489388A (en) * 1994-04-12 1996-02-06 The F. B. Leopold Co., Inc. Apparatus and method for improving gas backwash in lateral underdrains
US5658459A (en) * 1995-12-29 1997-08-19 Unites States Filter Corporation Dual velocity strainer
KR100367097B1 (ko) * 2000-01-10 2003-01-14 주식회사 한국건설관리공사 집수장치용 스트레이너
US6982034B2 (en) 2001-09-10 2006-01-03 Rg Delaware, Inc. Underdrain system
KR100540262B1 (ko) * 2002-05-23 2006-01-16 문병실 하부집수장치의 보수구조 및 보수방법
JP2006505625A (ja) 2002-09-26 2006-02-16 ファイザー・インク Ｈｉｖ感染症を治療するためのピラゾールアミド
KR100572352B1 (ko) 2004-08-24 2006-04-24 (주)삼동비엔에프 하부집수장치의 개량보수구조 및 개량보수방법
JP4945527B2 (ja) * 2008-08-07 2012-06-06 株式会社東芝 蒸気タービン用ノズルボックスおよび蒸気タービン
JP5620199B2 (ja) * 2010-09-02 2014-11-05 ヤンマー株式会社 濾過装置およびストレ−ナ
US9108126B2 (en) 2011-08-05 2015-08-18 Hayward Industries, Inc. Unitary filter tank and an underdrain for filtering a body of water
US8936721B2 (en) 2011-08-05 2015-01-20 Hayward Industries, Inc. Unitary filter tank and an underdrain for filtering a body of water
AU2013100521A4 (en) * 2012-10-04 2013-05-23 Waterco Limited Nozzle plate filter tank assembly
JP7206851B2 (ja) * 2018-11-28 2023-01-18 王子ホールディングス株式会社 ろ過装置、ろ過方法およびろ過装置の洗浄方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US688312A (en) * 1900-04-16 1901-12-10 Omar H Jewell Strainer.
US739621A (en) * 1903-04-24 1903-09-22 Christian Jaeger Liquid-filter.
US1689308A (en) * 1927-04-18 1928-10-30 Stickney Hydraulic Co Hand-controlled water softener
US2622739A (en) * 1946-02-28 1952-12-23 Zander & Ingestroem Filter nozzle
US3081877A (en) * 1957-08-20 1963-03-19 Steinmueller Gmbh L & C Filter nozzle
US3378858A (en) * 1965-06-17 1968-04-23 Jacuzzi Bros Inc Drain assembly
US3625365A (en) * 1969-06-25 1971-12-07 Jacuzzi Bros Inc Underdrain assembly for pool-type filter
US3730348A (en) * 1971-04-19 1973-05-01 Ecodyne Corp Filter screen
US3826375A (en) * 1971-07-19 1974-07-30 Universal Oil Prod Co Liquid-solids contacting chamber with spherical strainer means
US3762559A (en) * 1972-07-17 1973-10-02 Rostone Corp Filter bottom and molded module therefor
US4084750A (en) * 1974-10-23 1978-04-18 The De Laval Separator Company Nozzle assembly for filters
US4102790A (en) * 1976-08-18 1978-07-25 Diaclear, Inc. Filter underdrain
CH627090A5 (it) * 1978-05-10 1981-12-31 Sulzer Ag
US4608168A (en) * 1981-06-17 1986-08-26 Blue Circle Projects (Proprietary) Ltd. Distribution filter nozzles and filters incorporating same
FR2508338B1 (fr) * 1981-06-25 1987-09-18 Degremont Filtre a remplissage de materiau granulaire
US4476020A (en) * 1981-12-08 1984-10-09 Paterson Candy International Limited Strainer assembly for granular media filters
GB2134806B (en) * 1983-02-07 1986-07-16 English Clays Lovering Pochin A tube pressure filter
US4707257A (en) * 1986-05-29 1987-11-17 The Graver Company Air/water distributor underdrain

Also Published As

Publication number Publication date
GB9011979D0 (en) 1990-07-18
IT9048128A0 (it) 1990-07-10
US5028322A (en) 1991-07-02
GB2233575A (en) 1991-01-16
AU5794390A (en) 1991-01-17
IT9048128A1 (it) 1992-01-10
AU627045B2 (en) 1992-08-13
GB2233575B (en) 1993-02-17
JPH03114502A (ja) 1991-05-15
CA2016404C (en) 2000-11-07
CA2016404A1 (en) 1991-01-11

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970730