FR2422428A1 - Procede pour la filtration de suspensions et utilisations de ce procede - Google Patents
Procede pour la filtration de suspensions et utilisations de ce procedeInfo
- Publication number
- FR2422428A1 FR2422428A1 FR7905472A FR7905472A FR2422428A1 FR 2422428 A1 FR2422428 A1 FR 2422428A1 FR 7905472 A FR7905472 A FR 7905472A FR 7905472 A FR7905472 A FR 7905472A FR 2422428 A1 FR2422428 A1 FR 2422428A1
- Authority
- FR
- France
- Prior art keywords
- pressure drop
- filtration
- layer
- delta
- particles
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 5
- 238000001914 filtration Methods 0.000 title abstract 3
- 239000000725 suspension Substances 0.000 title abstract 3
- 238000011010 flushing procedure Methods 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 239000003651 drinking water Substances 0.000 abstract 1
- 235000020188 drinking water Nutrition 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 abstract 1
- 230000016615 flocculation Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/03—Processes of filtration using flocculating agents
-
- 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
- B01D24/105—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 downward filtration without specifications about the filter material supporting means
-
- 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
- B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
- B01D24/4884—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Procédé pour la filtration de suspension avec utilisation de filtres actifs dans la masse que l'on soumet à des intervalles de temps déterminés à un processus de rinçage à contre-courant Le déclenchement d'un processus de rinçage à contre-courant s'effectue toujours lorsqu'une couche de particules de la suspension commence à se former à la surface du filtre actif dans la masse. On détermine le moment où il se forme une couche de particules de la suspension en observant la perte de charge engendrée par cette couche. On détermine la perte de charge au moyen d'une mesure continue de la perte de charge effective, DELTA pt , dans la totalité du filtre et on compare valeur ainsi obtenue avec la perte de charge idéale, DELTA pt . Applications : filtration après floculation de l'eau potable et des eaux d'égouts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH237678A CH632935A5 (de) | 1978-03-06 | 1978-03-06 | Verfahren zur filtration von suspensionen und anwendung dieses verfahrens zur trinkwasseraufbereitung und zur abwasserreinigung. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2422428A1 true FR2422428A1 (fr) | 1979-11-09 |
FR2422428B1 FR2422428B1 (fr) | 1983-01-21 |
Family
ID=4232323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7905472A Granted FR2422428A1 (fr) | 1978-03-06 | 1979-03-02 | Procede pour la filtration de suspensions et utilisations de ce procede |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH632935A5 (fr) |
DE (1) | DE2812819A1 (fr) |
FR (1) | FR2422428A1 (fr) |
GB (1) | GB2015891B (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT8104953V0 (it) * | 1981-07-22 | 1981-07-22 | Culligan Italiana | Perfezionamenti negli impianti per il trattamento delle acque mediante filtrazione diretta e con l'uso di filtri disposti in serie |
DE3360210D1 (en) * | 1982-01-19 | 1985-07-04 | Ciba Geigy Ag | Filter system |
US4478714A (en) * | 1983-01-10 | 1984-10-23 | Ciba-Geigy Ag | Pressurized filtration system |
DE102022123613B3 (de) | 2022-09-15 | 2023-11-16 | CERAFILTEC Germany GmbH | Verfahren zur Bestimmung der Sättigungsdauer eines Adsorptionsmittels und zum Abschätzen des Ist-DOC-Anteils eines zu filtrierenden Testmediums |
-
1978
- 1978-03-06 CH CH237678A patent/CH632935A5/de not_active IP Right Cessation
- 1978-03-23 DE DE19782812819 patent/DE2812819A1/de not_active Withdrawn
-
1979
- 1979-03-02 GB GB7907463A patent/GB2015891B/en not_active Expired
- 1979-03-02 FR FR7905472A patent/FR2422428A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2015891B (en) | 1982-07-07 |
GB2015891A (en) | 1979-09-19 |
CH632935A5 (de) | 1982-11-15 |
FR2422428B1 (fr) | 1983-01-21 |
DE2812819A1 (de) | 1979-10-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |