FR2415483B1 - - Google Patents
Info
- Publication number
- FR2415483B1 FR2415483B1 FR7834321A FR7834321A FR2415483B1 FR 2415483 B1 FR2415483 B1 FR 2415483B1 FR 7834321 A FR7834321 A FR 7834321A FR 7834321 A FR7834321 A FR 7834321A FR 2415483 B1 FR2415483 B1 FR 2415483B1
- 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
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biological Treatment Of Waste Water (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH97778A CH630811A5 (en) | 1978-01-30 | 1978-01-30 | Process for back-washing of back-washable fixed beds built up from granular materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2415483A1 FR2415483A1 (fr) | 1979-08-24 |
| FR2415483B1 true FR2415483B1 (US06582424-20030624-M00016.png) | 1984-03-09 |
Family
ID=4199600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7834321A Granted FR2415483A1 (fr) | 1978-01-30 | 1978-12-06 | Procede d'accroissement de l'efficacite du lavage a contre-courant ou de conditionnement de lits fixes de matieres granulaires |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH630811A5 (US06582424-20030624-M00016.png) |
| DE (1) | DE2805058C3 (US06582424-20030624-M00016.png) |
| FR (1) | FR2415483A1 (US06582424-20030624-M00016.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2948091A1 (de) * | 1979-11-29 | 1981-06-04 | Wabag Wasserreinigungsbau Alfred Kretzschmar Gmbh & Co Kg, 8650 Kulmbach | Verfahren zum abfuehren des schlammwassers aus dem innenraum eines filters und filteranlage zur durchfuehrung des verfahrens |
| DE10106322B4 (de) * | 2001-02-09 | 2005-11-17 | Inka-Holding Und Immobilien Gmbh & Co. Kg | Wasserfilter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR369056A (fr) * | 1906-08-20 | 1906-12-28 | Hans Reisert | Procédé et appareil pour le lavage des masses filtrantes libres |
| FR1164798A (fr) * | 1957-01-17 | 1958-10-14 | Emile Degremont Ets | Procédé et dispositif de lavage des filtres à sable |
| US3506125A (en) * | 1967-09-15 | 1970-04-14 | Roderick M Willis | Water treatment process for improved gravity filtering and backwashing |
| DE1816527C3 (de) * | 1968-12-17 | 1975-07-31 | Hans-Ulrich 6200 Wiesbaden Klein | Verfahren zur Wasseraufbereitung in einem Druckwind-Schaltkessel und Vorrichtung zu seiner Durchführung |
| US3812969A (en) * | 1972-10-16 | 1974-05-28 | Sybron Corp | Apparatus for fluid treatment |
| DE2608899C3 (de) * | 1976-03-04 | 1982-12-30 | Müller, Wolf-Rüdiger, Dipl.-Ing., 7000 Stuttgart | Verfahren zur Verbesserung des Rückspülvorganges bei Filtern aus körnigen Materialien durch den Einsatz von Wasserstoffperoxid (H↓2↓O↓2↓) |
-
1978
- 1978-01-30 CH CH97778A patent/CH630811A5/de not_active IP Right Cessation
- 1978-02-07 DE DE2805058A patent/DE2805058C3/de not_active Expired
- 1978-12-06 FR FR7834321A patent/FR2415483A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2805058C3 (de) | 1981-05-21 |
| FR2415483A1 (fr) | 1979-08-24 |
| CH630811A5 (en) | 1982-07-15 |
| DE2805058B2 (de) | 1980-08-14 |
| DE2805058A1 (de) | 1979-08-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |