JPS5519648B2 - - Google Patents
Info
- Publication number
- JPS5519648B2 JPS5519648B2 JP1982377A JP1982377A JPS5519648B2 JP S5519648 B2 JPS5519648 B2 JP S5519648B2 JP 1982377 A JP1982377 A JP 1982377A JP 1982377 A JP1982377 A JP 1982377A JP S5519648 B2 JPS5519648 B2 JP S5519648B2
- Authority
- JP
- Japan
- 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
- B01D24/14—Downward filtration, the container having distribution or collection headers or pervious conduits
-
- 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
- B01D24/24—Downward filtration, the container having distribution or collection headers or pervious conduits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
- B01D2201/0415—Details of supporting structures
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/662,131 US4064050A (en) | 1976-02-27 | 1976-02-27 | Filter bottom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52106164A JPS52106164A (en) | 1977-09-06 |
| JPS5519648B2 true JPS5519648B2 (US07582779-20090901-C00044.png) | 1980-05-28 |
Family
ID=24656492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982377A Granted JPS52106164A (en) | 1976-02-27 | 1977-02-26 | Filter bottom |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4064050A (US07582779-20090901-C00044.png) |
| JP (1) | JPS52106164A (US07582779-20090901-C00044.png) |
| CA (1) | CA1077408A (US07582779-20090901-C00044.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02212Y2 (US07582779-20090901-C00044.png) * | 1980-12-22 | 1990-01-05 | ||
| JPH0426869B2 (US07582779-20090901-C00044.png) * | 1989-05-10 | 1992-05-08 | Sophia Co Ltd |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4331542A (en) * | 1980-08-01 | 1982-05-25 | Enviroquip, Inc. | Underdrain unit with air/water backwash for granular filtration system |
| US4536287A (en) * | 1984-04-18 | 1985-08-20 | Himsley Engineering Limited | Piping for use in liquid collection and distribution |
| US4923606A (en) * | 1988-02-26 | 1990-05-08 | Tetra Technologies | Plastic-jacketed filter underdrain block |
| US5232592A (en) * | 1991-04-03 | 1993-08-03 | The F. B. Leopold Company, Inc. | Cap for underdrains in gravity filters |
| US5087362A (en) * | 1991-07-26 | 1992-02-11 | F.B. Leopold Company, Inc. | Flume distribution system with removable block |
| US5332497A (en) * | 1991-10-25 | 1994-07-26 | Baker Hughes Incorporated | Nozzleless underdrain for granular filtration system |
| US5160614A (en) * | 1992-02-25 | 1992-11-03 | The F.B. Leopold Company, Inc. | Air duct block for air/water underdrain systems in gravity filters |
| US5496472A (en) * | 1993-12-20 | 1996-03-05 | Tetra Technologies, Inc. | Method and apparatus for denitrification of wastewater |
| US5489388A (en) * | 1994-04-12 | 1996-02-06 | The F. B. Leopold Co., Inc. | Apparatus and method for improving gas backwash in lateral underdrains |
| US5776344A (en) * | 1995-10-26 | 1998-07-07 | Tetra Technologies Inc. | Method for removing nitrogen from wastewater |
| US6312611B1 (en) | 1996-07-31 | 2001-11-06 | The F.B. Leopold Co., Inc. | Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes |
| BRPI0612927A2 (pt) * | 2005-05-17 | 2012-10-02 | Leopold Co Inc F B | aparelho e método para a distribuição de gás e de lìquido durante a contra-lavagem nos filtros das calhas inferiores de escoamento usando uma separação dupla |
| US20110030307A1 (en) * | 2009-08-10 | 2011-02-10 | Caterpillar Inc. | Concrete bar slag container |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190604141A (en) * | 1906-02-20 | 1906-12-31 | Ernest Evans Willou Berrington | Aeration and Drainage Floor for Bacteriological, Sewage, Water or other Filters. |
| US1687782A (en) * | 1927-06-20 | 1928-10-16 | Plymouth Clay Products Company | Floor block for disposal tanks |
| DE696980C (de) * | 1934-08-17 | 1940-10-03 | Ozongesellschaft M B H | Fluessigkeitsfilter |
| FR1007754A (fr) * | 1948-03-26 | 1952-05-09 | Chabal & Cie C | élément répartiteur d'air et d'eau utilisé comme support de la couche filtrante dans les bassins de filtration |
| DE833628C (de) * | 1950-11-22 | 1952-03-10 | Georg Batz Dipl Ing | Hohler Tropfkoerper zur biologischen Abwasserreinigung |
| US3468422A (en) * | 1967-02-03 | 1969-09-23 | Chicago Bridge & Iron Co | Ceramic filter bottom directly supporting media |
-
1976
- 1976-02-27 US US05/662,131 patent/US4064050A/en not_active Expired - Lifetime
-
1977
- 1977-02-03 CA CA270,978A patent/CA1077408A/en not_active Expired
- 1977-02-26 JP JP1982377A patent/JPS52106164A/ja active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02212Y2 (US07582779-20090901-C00044.png) * | 1980-12-22 | 1990-01-05 | ||
| JPH0426869B2 (US07582779-20090901-C00044.png) * | 1989-05-10 | 1992-05-08 | Sophia Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| US4064050A (en) | 1977-12-20 |
| CA1077408A (en) | 1980-05-13 |
| JPS52106164A (en) | 1977-09-06 |
