WO1998050626A3 - Method and device for separating the liquid contained in a suspension from the dispersed material in the suspension - Google Patents
Method and device for separating the liquid contained in a suspension from the dispersed material in the suspension Download PDFInfo
- Publication number
- WO1998050626A3 WO1998050626A3 PCT/DE1998/001148 DE9801148W WO9850626A3 WO 1998050626 A3 WO1998050626 A3 WO 1998050626A3 DE 9801148 W DE9801148 W DE 9801148W WO 9850626 A3 WO9850626 A3 WO 9850626A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- suspension
- separating
- liquid
- liquid contained
- electrode
- Prior art date
Links
- 239000000725 suspension Substances 0.000 title abstract 7
- 239000000463 material Substances 0.000 title abstract 6
- 239000007788 liquid Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 238000005119 centrifugation Methods 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- 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
- B01D35/06—Filters making use of electricity or magnetism
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to a method and a device for separating the liquid contained in a suspension from the dispersed material in the suspension, especially for separating the granular and/or fibrous constituents of sludges or fibrous suspensions from the liquid, using the centrifugal force by centrifugation. In order to achieve better results, the inventive method uses the electrical conductivity of the liquid and/or material by passing an electrical current of a predetermined strength through the suspension or material during a predeterminable period whilst the suspension is being subjected to the effect of the centrifugal force, according to a known method, to improve the drainage effect and to sterilise the material. The inventive device is characterised in that the filter cover (3) and/or the outer cover (2) are provided as a first electrode in the centrifuge and a component which can be brought into contact with the layer of material (8) deposited on the filter cover (3) is provided as a second electrode. Said first and second electrodes can be connected to an energy source (G).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19719139.8 | 1997-05-07 | ||
DE19719139 | 1997-05-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998050626A2 WO1998050626A2 (en) | 1998-11-12 |
WO1998050626A3 true WO1998050626A3 (en) | 1999-02-11 |
Family
ID=7828794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/001148 WO1998050626A2 (en) | 1997-05-07 | 1998-04-23 | Method and device for separating the liquid contained in a suspension from the dispersed material in the suspension |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO1998050626A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1642868A1 (en) * | 2004-09-29 | 2006-04-05 | Les Technologies Elcotech Inc. | Process and apparatus for treating sludge |
RU2487746C1 (en) * | 2012-06-01 | 2013-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" ФГБОУ ВПО ТГТУ | Electrobaromembrane flat-chamber apparatus |
RU2522882C1 (en) * | 2013-04-15 | 2014-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" ФГБОУ ВПО ТГТУ | Spiral-wound electric baromembrane device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4215061A1 (en) * | 1991-07-31 | 1993-02-04 | Asea Brown Boveri | Sludge drying - using centrifuge for initial water extn. followed by feeding DC current through electrodes pressed against caked sludge for scraper extn. |
DE4141345A1 (en) * | 1991-12-16 | 1993-06-17 | Kleinholz Recycling Gmbh | Sewage sludge decontamination - forces sludge by centrifugal force against cathode wall, ionises heavy metals for deposition on anode |
DE4308390A1 (en) * | 1992-03-16 | 1993-09-23 | Noboru Inoue | Electric charging, coagulation and filtering of particles suspended in fluid, e.g. air, water, oil, cleaning liq, working liq - arranging electric charging electrode in passage region through which fluid flows, electrode being made of conducting material |
-
1998
- 1998-04-23 WO PCT/DE1998/001148 patent/WO1998050626A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4215061A1 (en) * | 1991-07-31 | 1993-02-04 | Asea Brown Boveri | Sludge drying - using centrifuge for initial water extn. followed by feeding DC current through electrodes pressed against caked sludge for scraper extn. |
DE4141345A1 (en) * | 1991-12-16 | 1993-06-17 | Kleinholz Recycling Gmbh | Sewage sludge decontamination - forces sludge by centrifugal force against cathode wall, ionises heavy metals for deposition on anode |
DE4308390A1 (en) * | 1992-03-16 | 1993-09-23 | Noboru Inoue | Electric charging, coagulation and filtering of particles suspended in fluid, e.g. air, water, oil, cleaning liq, working liq - arranging electric charging electrode in passage region through which fluid flows, electrode being made of conducting material |
Also Published As
Publication number | Publication date |
---|---|
WO1998050626A2 (en) | 1998-11-12 |
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