GB1317433A - Liquid-filtration plants - Google Patents

Liquid-filtration plants

Info

Publication number
GB1317433A
GB1317433A GB2063769A GB1317433DA GB1317433A GB 1317433 A GB1317433 A GB 1317433A GB 2063769 A GB2063769 A GB 2063769A GB 1317433D A GB1317433D A GB 1317433DA GB 1317433 A GB1317433 A GB 1317433A
Authority
GB
United Kingdom
Prior art keywords
medium
water
grills
filter
backflushing
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
Application number
GB2063769A
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.)
Makwana J G
Original Assignee
Makwana J G
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 Makwana J G filed Critical Makwana J G
Publication of GB1317433A publication Critical patent/GB1317433A/en
Expired 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
    • B01D24/002—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection
    • B01D24/004—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection arranged concentrically or coaxially
    • 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
    • B01D24/18—Combined upward and downward filtration
    • B01D24/183—Combined upward and 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
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/14—Particulate filter materials with a lower density than the liquid mixture to be filtered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

1317433 Filter for water J G MAKWANA 22 July 1970 [23 April 1969] 20637/69 Heading B1D Water for drinking or a swimming pool is filtered by passage in opposite directions through beds 12 and 13 which operate in parallel, one bed comprising filter medium which is less dense than water, the other medium which is more dense than water. As shown the light medium is contained in the upper compartment and the heavy medium in the lower compartment, grills 11, 14 retaining media during filtering and grills 9, 10 during backflushing. Alternatively the light medium could be in the lower compartment and the heavy medium above, in which case space 15 acts as the filtrate outlet chamber and the drawing represents conditions during backflushing. The vessel is of resin-bonded fibre glass and the grills may also be synthetic resin and covered with fabric. Inlet/outlet conduits 7, 20 lead to a composite valve capable of switching over from filtration flow to connect them to a source of backflushing liquid and a drain. The filter media may be P.V.C., polyethylene or polypropylene, with different proportions of air and filler to adjust the densities, of uniform grain size within the range 0.02 to 0.25 inches. The vessel may have an air release valve and a drain cock (not shown).
GB2063769A 1969-04-23 1969-04-23 Liquid-filtration plants Expired GB1317433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2063769 1969-04-23

Publications (1)

Publication Number Publication Date
GB1317433A true GB1317433A (en) 1973-05-16

Family

ID=10149214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2063769A Expired GB1317433A (en) 1969-04-23 1969-04-23 Liquid-filtration plants

Country Status (1)

Country Link
GB (1) GB1317433A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116445A (en) * 1982-03-16 1983-09-28 Paterson Candy Int A filter for and a method of removing solids from liquids
US4547286A (en) * 1980-07-22 1985-10-15 Neptune Microfloc, Inc. Water filtration process and apparatus having upflow filter with buoyant filter media and downflow filter with nonbuoyant filter media
US4608181A (en) * 1983-03-25 1986-08-26 Neptune Microfloc, Inc. Water filtration apparatus having upflow buoyant media filter and downflow nonbuoyant media filter
US4743382A (en) * 1980-08-06 1988-05-10 The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Method and apparatus for separating suspended solids from liquids
US5122287A (en) * 1990-10-26 1992-06-16 Hsiung Andrew K Filtration system
US5413749A (en) * 1993-06-04 1995-05-09 Wheelabrator Engineered Systems Inc. Process of making beads for a liquid purification bed

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547286A (en) * 1980-07-22 1985-10-15 Neptune Microfloc, Inc. Water filtration process and apparatus having upflow filter with buoyant filter media and downflow filter with nonbuoyant filter media
US4743382A (en) * 1980-08-06 1988-05-10 The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University Method and apparatus for separating suspended solids from liquids
GB2116445A (en) * 1982-03-16 1983-09-28 Paterson Candy Int A filter for and a method of removing solids from liquids
US4608181A (en) * 1983-03-25 1986-08-26 Neptune Microfloc, Inc. Water filtration apparatus having upflow buoyant media filter and downflow nonbuoyant media filter
US5122287A (en) * 1990-10-26 1992-06-16 Hsiung Andrew K Filtration system
US5413749A (en) * 1993-06-04 1995-05-09 Wheelabrator Engineered Systems Inc. Process of making beads for a liquid purification bed
US6391448B1 (en) 1993-06-04 2002-05-21 United States Filter Corporation Liquid purification beds and beads therefor

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees