GB1317433A - Liquid-filtration plants - Google Patents
Liquid-filtration plantsInfo
- 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
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).
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)
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 |
-
1969
- 1969-04-23 GB GB2063769A patent/GB1317433A/en not_active Expired
Cited By (7)
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 |