CA2474176A1 - Process and apparatus for treating sludge - Google Patents

Process and apparatus for treating sludge Download PDF

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Publication number
CA2474176A1
CA2474176A1 CA002474176A CA2474176A CA2474176A1 CA 2474176 A1 CA2474176 A1 CA 2474176A1 CA 002474176 A CA002474176 A CA 002474176A CA 2474176 A CA2474176 A CA 2474176A CA 2474176 A1 CA2474176 A1 CA 2474176A1
Authority
CA
Canada
Prior art keywords
sludge
treating
space
inlet
outlet
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
Application number
CA002474176A
Other languages
French (fr)
Other versions
CA2474176C (en
Inventor
Abderrazak Berrak
Abderrahmane Dermoune
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Ltd
Original Assignee
LES TECHNOLOGIES ELCOTECH Inc
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
Priority claimed from CA002437245A external-priority patent/CA2437245A1/en
Application filed by LES TECHNOLOGIES ELCOTECH Inc filed Critical LES TECHNOLOGIES ELCOTECH Inc
Priority to CA002474176A priority Critical patent/CA2474176C/en
Publication of CA2474176A1 publication Critical patent/CA2474176A1/en
Application granted granted Critical
Publication of CA2474176C publication Critical patent/CA2474176C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46123—Movable electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4616—Power supply
    • C02F2201/4617—DC only

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention relates to an apparatus for treating sludge comprising electrodes including at least one anode and at least one cathode. The electrodes define therebetween a space adapted to receive the sludge so as to submit the sludge disposed within the space to an electric current, thereby dehydrating the sludge and generating an effluent. The apparatus also comprises an inlet for receiving the sludge and an outlet for evacuatin g the treated sludge. The inlet and the outlet are in communication with the space. The apparatus also comprises compression means for compacting the sludge so as to permit a contact substantially constant between the electrod es and the sludge when the sludge is submitted to the electric current and rotated around a rotation axis. The invention also relates to a process for treating sludge, The invention is useful for treating various types of sludg e in order to dehydrate and decontaminate the sludge.
CA002474176A 2003-08-11 2004-08-10 Process and apparatus for treating sludge Expired - Fee Related CA2474176C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002474176A CA2474176C (en) 2003-08-11 2004-08-10 Process and apparatus for treating sludge

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002437245A CA2437245A1 (en) 2003-08-11 2003-08-11 Apparatus for treating high dryness sludge
CA2,437,245 2003-08-11
CA002474176A CA2474176C (en) 2003-08-11 2004-08-10 Process and apparatus for treating sludge

Publications (2)

Publication Number Publication Date
CA2474176A1 true CA2474176A1 (en) 2004-11-24
CA2474176C CA2474176C (en) 2006-04-18

Family

ID=33453252

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002474176A Expired - Fee Related CA2474176C (en) 2003-08-11 2004-08-10 Process and apparatus for treating sludge

Country Status (1)

Country Link
CA (1) CA2474176C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7578918B2 (en) 2003-08-11 2009-08-25 Gl&V Canada Inc. Process and apparatus for treating sludge
US7828953B2 (en) 2002-02-12 2010-11-09 GL & V Canada Inc. Process and apparatus for treating sludge by the combined action of electro-osmosis and pressure
CN109678309A (en) * 2018-11-21 2019-04-26 中节能博实(湖北)环境工程技术股份有限公司 Tilting sludge agitation dehydration device
CN112441710A (en) * 2020-12-04 2021-03-05 岳阳佰胜智慧环保科技有限公司 Sludge microwave digestion system
CN113045148A (en) * 2021-03-12 2021-06-29 孙禄 Movable sludge treatment equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7828953B2 (en) 2002-02-12 2010-11-09 GL & V Canada Inc. Process and apparatus for treating sludge by the combined action of electro-osmosis and pressure
US7578918B2 (en) 2003-08-11 2009-08-25 Gl&V Canada Inc. Process and apparatus for treating sludge
CN109678309A (en) * 2018-11-21 2019-04-26 中节能博实(湖北)环境工程技术股份有限公司 Tilting sludge agitation dehydration device
CN112441710A (en) * 2020-12-04 2021-03-05 岳阳佰胜智慧环保科技有限公司 Sludge microwave digestion system
CN113045148A (en) * 2021-03-12 2021-06-29 孙禄 Movable sludge treatment equipment

Also Published As

Publication number Publication date
CA2474176C (en) 2006-04-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150810