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FI20125908A - Method for filtering sludges - Google Patents

Method for filtering sludges

Info

Publication number
FI20125908A
FI20125908A FI20125908A FI20125908A FI20125908A FI 20125908 A FI20125908 A FI 20125908A FI 20125908 A FI20125908 A FI 20125908A FI 20125908 A FI20125908 A FI 20125908A FI 20125908 A FI20125908 A FI 20125908A
Authority
FI
Finland
Prior art keywords
sludges
filtering
filtering sludges
Prior art date
Application number
FI20125908A
Other languages
Finnish (fi)
Swedish (sv)
Inventor
Karita Kinnunen
Tuomo Hjelt
Jani Lehmonen
Pentti Pirkonen
Hannu Mursunen
Original Assignee
Teknologian Tutkimuskeskus Vtt Oy
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 Teknologian Tutkimuskeskus Vtt Oy filed Critical Teknologian Tutkimuskeskus Vtt Oy
Priority to FI20125908A priority Critical patent/FI20125908A/en
Priority to PCT/FI2013/050842 priority patent/WO2014033370A1/en
Publication of FI20125908A publication Critical patent/FI20125908A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • 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
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/08—Subsequent treatment of concentrated product
    • B03D1/10—Removing adhering liquid from separated materials
    • 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
    • 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
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
    • 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
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/04—Surfactants, used as part of a formulation or alone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Treatment Of Sludge (AREA)
FI20125908A 2012-08-31 2012-08-31 Method for filtering sludges FI20125908A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20125908A FI20125908A (en) 2012-08-31 2012-08-31 Method for filtering sludges
PCT/FI2013/050842 WO2014033370A1 (en) 2012-08-31 2013-09-02 A method of filtering sludges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20125908A FI20125908A (en) 2012-08-31 2012-08-31 Method for filtering sludges

Publications (1)

Publication Number Publication Date
FI20125908A true FI20125908A (en) 2014-03-01

Family

ID=50182583

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20125908A FI20125908A (en) 2012-08-31 2012-08-31 Method for filtering sludges

Country Status (2)

Country Link
FI (1) FI20125908A (en)
WO (1) WO2014033370A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053761A (en) * 1957-05-22 1962-09-11 Horace A Bradt Process for separation of liquid from liquid-solid mixtures of fine solid particle size
US4244813A (en) * 1979-08-08 1981-01-13 Bethlehem Steel Corporation Method of increasing fine coal filtration efficiency
JPS5849286B2 (en) * 1980-03-18 1983-11-02 同和鉱業株式会社 Method for promoting dehydration in vacuum “filtration” machines
WO2011123922A1 (en) * 2010-04-09 2011-10-13 David Bromley Nanoflotation

Also Published As

Publication number Publication date
WO2014033370A1 (en) 2014-03-06

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

FD Application lapsed