FR2445734B1 - - Google Patents
Info
- Publication number
- FR2445734B1 FR2445734B1 FR7900373A FR7900373A FR2445734B1 FR 2445734 B1 FR2445734 B1 FR 2445734B1 FR 7900373 A FR7900373 A FR 7900373A FR 7900373 A FR7900373 A FR 7900373A FR 2445734 B1 FR2445734 B1 FR 2445734B1
- Authority
- FR
- France
- 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
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- 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
- B01D24/005—Filters being divided into a plurality of cells or compartments
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- 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
- B01D24/22—Downward filtration, the filter material being supported by pervious surfaces
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- 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
- B01D24/38—Feed or discharge devices
- B01D24/42—Feed or discharge devices for discharging filtrate
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- 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
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
-
- 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
- B01D24/4642—Counter-current flushing, e.g. by air with valves, e.g. rotating valves
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biological Treatment Of Waste Water (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7900373A FR2445734A1 (fr) | 1979-01-08 | 1979-01-08 | Filtre a cellules multiples avec milieu de filtration de type granulaire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7900373A FR2445734A1 (fr) | 1979-01-08 | 1979-01-08 | Filtre a cellules multiples avec milieu de filtration de type granulaire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2445734A1 FR2445734A1 (fr) | 1980-08-01 |
| FR2445734B1 true FR2445734B1 (es) | 1983-04-29 |
Family
ID=9220538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7900373A Granted FR2445734A1 (fr) | 1979-01-08 | 1979-01-08 | Filtre a cellules multiples avec milieu de filtration de type granulaire |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2445734A1 (es) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2302449A (en) * | 1940-03-21 | 1942-11-17 | William C Laughlin | Filter apparatus |
| US2302450A (en) * | 1940-06-29 | 1942-11-17 | William C Laughlin | Filter |
| US2679319A (en) * | 1951-12-20 | 1954-05-25 | Walker Process Equipment Inc | Apparatus for backflushing sectional filters |
| GB939696A (en) * | 1961-03-06 | 1963-10-16 | Raymond Hebert | Filters |
| US3239061A (en) * | 1963-06-05 | 1966-03-08 | Koppers Co Inc | Automatic backwash sand filter and process of cleaning same |
| JPS502261A (es) * | 1973-04-23 | 1975-01-10 | ||
| US3840117A (en) * | 1973-04-30 | 1974-10-08 | Hydro Clear Corp | Underdrain structure for waste effluent filter and method of using same |
| CH568776A5 (es) * | 1973-11-26 | 1975-11-14 | Pista Sa | |
| US4133766A (en) * | 1977-03-11 | 1979-01-09 | Koppers Company, Inc. | Filter media support and containment system |
-
1979
- 1979-01-08 FR FR7900373A patent/FR2445734A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2445734A1 (fr) | 1980-08-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property |