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 PDF

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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
Application number
PCT/DE1998/001148
Other languages
German (de)
French (fr)
Other versions
WO1998050626A2 (en
Inventor
Alois Kohl
Original Assignee
Alois Kohl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alois Kohl filed Critical Alois Kohl
Publication of WO1998050626A2 publication Critical patent/WO1998050626A2/en
Publication of WO1998050626A3 publication Critical patent/WO1998050626A3/en

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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).
PCT/DE1998/001148 1997-05-07 1998-04-23 Method and device for separating the liquid contained in a suspension from the dispersed material in the suspension WO1998050626A2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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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