WO2008049911A3 - Method for treating sludge and relative treatment plant - Google Patents
Method for treating sludge and relative treatment plant Download PDFInfo
- 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
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)
- Physical Water Treatments (AREA)
- Treatment Of Sludge (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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUD20060230 ITUD20060230A1 (en) | 2006-10-27 | 2006-10-27 | METHOD FOR THE TREATMENT OF SLUDGE AND ITS TREATMENT PLANT |
ITUD2006A000230 | 2006-10-27 |
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)
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 |
-
2006
- 2006-10-27 IT ITUD20060230 patent/ITUD20060230A1/en unknown
-
2007
- 2007-10-26 WO PCT/EP2007/061511 patent/WO2008049911A2/en active Application Filing
Patent Citations (5)
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)
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 |
---|---|
ITUD20060230A1 (en) | 2008-04-28 |
WO2008049911A2 (en) | 2008-05-02 |
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