WO2008049911A3 - Method for treating sludge and relative treatment plant - Google Patents

Method for treating sludge and relative treatment plant Download PDF

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Publication number
WO2008049911A3
WO2008049911A3 PCT/EP2007/061511 EP2007061511W WO2008049911A3 WO 2008049911 A3 WO2008049911 A3 WO 2008049911A3 EP 2007061511 W EP2007061511 W EP 2007061511W WO 2008049911 A3 WO2008049911 A3 WO 2008049911A3
Authority
WO
WIPO (PCT)
Prior art keywords
treatment
floatation
sludge
water
treatment plant
Prior art date
Application number
PCT/EP2007/061511
Other languages
French (fr)
Other versions
WO2008049911A2 (en
Inventor
Teimuraz Mechurchlishvili
Original Assignee
Impresa Taverna Spa
Teimuraz Mechurchlishvili
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 Impresa Taverna Spa, Teimuraz Mechurchlishvili filed Critical Impresa Taverna Spa
Publication of WO2008049911A2 publication Critical patent/WO2008049911A2/en
Publication of WO2008049911A3 publication Critical patent/WO2008049911A3/en

Links

Classifications

    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil

Landscapes

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

Abstract

A method and relative plant (10) for treating sludge contaminated by pollutant substances and in which the aqueous means consists in particular of sea water, brackish water, industrial water, oil extraction water, or other water with a high saline and/or ionic content, comprises a first step a) in which a pre-treatment of the sludge is performed by means of pre-treatment means (11) and a second step b) in which a treatment of the sludge pre-treated in said step a) is performed by means of treatment means (12). The treatment comprises a foam-free floatation treatment of the sludge pre-treated in the first step a), so as to obtain a head floatate, rich in pollutants, and a tail floatate, poor in pollutants. The foam-free floatation treatment comprises at least two floatation passes of a different type from each other, of which at least one floatation pass is of the type with a neumatic floatation.
PCT/EP2007/061511 2006-10-27 2007-10-26 Method for treating sludge and relative treatment plant WO2008049911A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD2006A000230 2006-10-27
ITUD20060230 ITUD20060230A1 (en) 2006-10-27 2006-10-27 METHOD FOR THE TREATMENT OF SLUDGE AND ITS TREATMENT PLANT

Publications (2)

Publication Number Publication Date
WO2008049911A2 WO2008049911A2 (en) 2008-05-02
WO2008049911A3 true WO2008049911A3 (en) 2009-04-16

Family

ID=39283772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/061511 WO2008049911A2 (en) 2006-10-27 2007-10-26 Method for treating sludge and relative treatment plant

Country Status (2)

Country Link
IT (1) ITUD20060230A1 (en)
WO (1) WO2008049911A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013465A1 (en) * 1979-01-10 1980-07-23 Chevron Research Company Staged froth flotation with intermediate recycle
DE4038605A1 (en) * 1990-09-10 1992-09-17 Rohe Gmbh A Procedure and device for cleaning vehicle washing water - comprise adding flocculant and water is agitated to form foam which carries dirt particles to upper outlet while water is drawn from base of chamber
US5637223A (en) * 1992-09-03 1997-06-10 Petrolite Corporation Method of removing water soluble organics from oil process water
WO2000045961A1 (en) * 1999-02-02 2000-08-10 Zpm, Inc. Fluid conditioning system and method
WO2005002733A1 (en) * 2002-11-07 2005-01-13 Petreco International Limited Dual-cell mechanical flotation system with intermittent skimming

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013465A1 (en) * 1979-01-10 1980-07-23 Chevron Research Company Staged froth flotation with intermediate recycle
DE4038605A1 (en) * 1990-09-10 1992-09-17 Rohe Gmbh A Procedure and device for cleaning vehicle washing water - comprise adding flocculant and water is agitated to form foam which carries dirt particles to upper outlet while water is drawn from base of chamber
US5637223A (en) * 1992-09-03 1997-06-10 Petrolite Corporation Method of removing water soluble organics from oil process water
WO2000045961A1 (en) * 1999-02-02 2000-08-10 Zpm, Inc. Fluid conditioning system and method
WO2005002733A1 (en) * 2002-11-07 2005-01-13 Petreco International Limited Dual-cell mechanical flotation system with intermittent skimming

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SCHORIES G ET AL: "BELEBTSCHLAMMABTRENNUNG MIT EINER PNEUMATISCHEN FLOTATIONSZELLE", KORRESPONDENZ ABWASSER, ABWASSERTECHNISCHE VEREINIGUNG, ST. AUGUSTIN, DE, vol. 44, no. 1, 1 January 1997 (1997-01-01), pages 88 - 90,93, XP000680249, ISSN: 0341-1540 *

Also Published As

Publication number Publication date
WO2008049911A2 (en) 2008-05-02
ITUD20060230A1 (en) 2008-04-28

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