GB1164416A - Filtration Apparatus - Google Patents
Filtration ApparatusInfo
- Publication number
- GB1164416A GB1164416A GB00970/68A GB1097068A GB1164416A GB 1164416 A GB1164416 A GB 1164416A GB 00970/68 A GB00970/68 A GB 00970/68A GB 1097068 A GB1097068 A GB 1097068A GB 1164416 A GB1164416 A GB 1164416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layers
- layer
- filter
- gravel
- march
- 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
- B01D24/007—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series connection
- B01D24/008—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in series 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
- B01D24/12—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
- B01D24/4631—Counter-current flushing, e.g. by air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2101/00—Types of filters having loose filtering material
- B01D2101/02—Carbon filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2101/00—Types of filters having loose filtering material
- B01D2101/04—Sand or gravel filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Water Treatment By Sorption (AREA)
- Filtering Materials (AREA)
Abstract
1,164,416. Water filter. METALLGESELLSOHAFT A.G. 6 March, 1968 [8 March, 1967; 28 Oct., 1967], No. 10970/68. Heading B1D. [Also in Division Cl] A downward flow filter for turbid water comprises successive layers 17, 16, 15 of granular media, whose densities increase and whose average grain sizes decrease downwards, with up to 40% - of particles in adjacent layers being within a common size range, in the case of each pair of layers. The upper layer is activated carbon, the bottom layer is gravel or marble chips and the intermediate layer may be a denser type of active carbon, anthracite or ion exchange material. Typical respective grain size ranges are 0.5 to 4 mm., 0.8 to 1.5 mm. and 1 to 3 mm. Typical layer thicknesses are given. The bottom layer 15 rests on a coarser gravel draining bed or on a slotted plate 4. The inlet conduit 18 delivers water uniformly over the upper surface of the layer 17. The filter is cleaned by backwashing, the layers settling back afterwards by virtue of their different densities. Fig. 1 (not shown) illustrates a filter with only two layers, of carbon and gravel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM0073090 | 1967-03-08 | ||
DEM0076048 | 1967-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1164416A true GB1164416A (en) | 1969-09-17 |
Family
ID=25988038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB00970/68A Expired GB1164416A (en) | 1967-03-08 | 1968-03-06 | Filtration Apparatus |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH486904A (en) |
DE (2) | DE1536853A1 (en) |
FR (1) | FR1562302A (en) |
GB (1) | GB1164416A (en) |
SE (1) | SE346695B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4250141A (en) | 1977-12-16 | 1981-02-10 | Gambro Dialysatoren Gmbh & Co. Kg | Column for the removal of undesired substances from a liquid mixture |
GB2159429A (en) * | 1984-06-01 | 1985-12-04 | Tate & Lyle Plc | Filter |
US5108614A (en) * | 1989-05-10 | 1992-04-28 | Serrener Consultation Inc. | Device and a method for filtering a liquid with wood ash to remove impurities therefrom |
GB2261874A (en) * | 1991-11-26 | 1993-06-02 | David Houghton | Filters |
US6202654B1 (en) | 1994-10-28 | 2001-03-20 | Astra Aktiebolag | Cleaning system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8413982D0 (en) * | 1984-06-01 | 1984-07-04 | Tate & Lyle Plc | Filter |
-
1967
- 1967-03-08 DE DE19671536853 patent/DE1536853A1/en active Pending
- 1967-10-28 DE DE19671611113 patent/DE1611113A1/en active Pending
-
1968
- 1968-02-21 SE SE02251/68A patent/SE346695B/xx unknown
- 1968-02-22 CH CH258668A patent/CH486904A/en not_active IP Right Cessation
- 1968-03-06 GB GB00970/68A patent/GB1164416A/en not_active Expired
- 1968-03-06 FR FR1562302D patent/FR1562302A/fr not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4250141A (en) | 1977-12-16 | 1981-02-10 | Gambro Dialysatoren Gmbh & Co. Kg | Column for the removal of undesired substances from a liquid mixture |
GB2159429A (en) * | 1984-06-01 | 1985-12-04 | Tate & Lyle Plc | Filter |
US5108614A (en) * | 1989-05-10 | 1992-04-28 | Serrener Consultation Inc. | Device and a method for filtering a liquid with wood ash to remove impurities therefrom |
GB2261874A (en) * | 1991-11-26 | 1993-06-02 | David Houghton | Filters |
GB2261874B (en) * | 1991-11-26 | 1995-11-22 | David Houghton | Apparatus and method for filtering |
US6202654B1 (en) | 1994-10-28 | 2001-03-20 | Astra Aktiebolag | Cleaning system |
Also Published As
Publication number | Publication date |
---|---|
DE1536853A1 (en) | 1970-07-23 |
CH486904A (en) | 1970-03-15 |
SE346695B (en) | 1972-07-17 |
DE1611113A1 (en) | 1970-12-17 |
FR1562302A (en) | 1969-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |