WO2004058651A3 - Fermentable effluent- and/or sludge-purification method and installation for implementing one such method - Google Patents

Fermentable effluent- and/or sludge-purification method and installation for implementing one such method Download PDF

Info

Publication number
WO2004058651A3
WO2004058651A3 PCT/FR2003/003898 FR0303898W WO2004058651A3 WO 2004058651 A3 WO2004058651 A3 WO 2004058651A3 FR 0303898 W FR0303898 W FR 0303898W WO 2004058651 A3 WO2004058651 A3 WO 2004058651A3
Authority
WO
WIPO (PCT)
Prior art keywords
effluent
sludge
filtrate
step consisting
fermentable
Prior art date
Application number
PCT/FR2003/003898
Other languages
French (fr)
Other versions
WO2004058651A2 (en
Inventor
Bernard Sautjeau
Original Assignee
Otv Sa
Bernard Sautjeau
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 Otv Sa, Bernard Sautjeau filed Critical Otv Sa
Priority to AU2003303465A priority Critical patent/AU2003303465A1/en
Publication of WO2004058651A2 publication Critical patent/WO2004058651A2/en
Publication of WO2004058651A3 publication Critical patent/WO2004058651A3/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • C02F11/147Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/008Mobile apparatus and plants, e.g. mounted on a vehicle

Landscapes

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

Abstract

The invention relates to a method of treating fermentable effluent and/or sludge contained in at least one tank, comprising at least 15 grams of dry matter per litre. The invention is characterised in that it comprises: a step consisting in removing all of the effluent and/or sludge from the tank; a step consisting in subjecting the effluent and/or sludge to an acidification process, such that the pH thereof is between 2.5 and 3.5; a step consisting in adding at least one nitrite salt to the effluent and/or sludge at a concentration of approximately 0.5 and 1 g of nitrogen per kilogram of dry matter contained in the effluent or sludge; a step consisting in maintaining the mixture thus formed in contact for a period of between 5 minutes and 12 hours, with permanent or intermittent stirring; a step in which the mixture is filtered through a filter press in order to produce a filtrate and dehydrated sludge; a step involving the intermediate storage of said filtrate; a step comprising the neutralisation (approximately pH 7) of the filtrate immediately before a final step whereby the neutralised filtrate is released towards one or more tanks which originally housed the effluent and/or sludge before treatment, such as to prevent any effluent from being discharged into the natural environment at the treatment site.
PCT/FR2003/003898 2002-12-23 2003-12-23 Fermentable effluent- and/or sludge-purification method and installation for implementing one such method WO2004058651A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003303465A AU2003303465A1 (en) 2002-12-23 2003-12-23 Fermentable effluent- and/or sludge-purification method and installation for implementing one such method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR02/16587 2002-12-23
FR0216587A FR2849020B1 (en) 2002-12-23 2002-12-23 METHOD OF PURIFYING SLUDGE AND / OR FERMENTESCIBLE EFFLUENTS AND INSTALLATION FOR CARRYING OUT SUCH A METHOD

Publications (2)

Publication Number Publication Date
WO2004058651A2 WO2004058651A2 (en) 2004-07-15
WO2004058651A3 true WO2004058651A3 (en) 2004-08-19

Family

ID=32406459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2003/003898 WO2004058651A2 (en) 2002-12-23 2003-12-23 Fermentable effluent- and/or sludge-purification method and installation for implementing one such method

Country Status (3)

Country Link
AU (1) AU2003303465A1 (en)
FR (1) FR2849020B1 (en)
WO (1) WO2004058651A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5876613A (en) * 1995-03-31 1999-03-02 Omnium De Traitements Et De Valorisation Sludge digestion method
JP2002028696A (en) * 2000-07-17 2002-01-29 Kurita Water Ind Ltd Method for treating sludge
JP2002361300A (en) * 2001-06-11 2002-12-17 Kurita Water Ind Ltd Sludge treating method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5876613A (en) * 1995-03-31 1999-03-02 Omnium De Traitements Et De Valorisation Sludge digestion method
JP2002028696A (en) * 2000-07-17 2002-01-29 Kurita Water Ind Ltd Method for treating sludge
JP2002361300A (en) * 2001-06-11 2002-12-17 Kurita Water Ind Ltd Sludge treating method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 05 3 May 2002 (2002-05-03) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 04 2 April 2003 (2003-04-02) *

Also Published As

Publication number Publication date
FR2849020B1 (en) 2005-07-01
WO2004058651A2 (en) 2004-07-15
AU2003303465A1 (en) 2004-07-22
FR2849020A1 (en) 2004-06-25

Similar Documents

Publication Publication Date Title
US5238580A (en) Method for treating landfill leachate
WO2002036500A3 (en) Method and apparatus for treatment of water and wastewater
CA2182357A1 (en) Method of treating waste water to remove harmful ion by coagulating sedimentation
PL335720A1 (en) Method of treating sludges for sewage treatment plants
EP0891951A4 (en) Method and apparatus for treating selenium-containing waste water
JP2001025782A (en) Biological treatment of high concentration waste water and device therefor
WO2006017415A3 (en) Waste activated sludge anaerobic contact waste stream treatment process-recycle
EP1531123A3 (en) Method and installation for the treatment of soil water from ships
TW200516056A (en) Organic wastewater treatment method and apparatus
AU5071199A (en) Process for the treatment of waste water containing specific components, e.g. ammonia
AU1542797A (en) A method and plant for waste-water treatment
JP2928569B2 (en) Water purification method
WO2004058651A3 (en) Fermentable effluent- and/or sludge-purification method and installation for implementing one such method
JP3272614B2 (en) Sewage treatment equipment
AU3563300A (en) Method of treating waste water
US3975270A (en) Process for recovering usable olive-processing liquor from olive-processing waste solution
EP3447030B1 (en) Process of treatment of agroindustrial waste water by reaction of acidification with addition of strong acids
KR100470350B1 (en) Method for disposing of livestock waste water
JP4085436B2 (en) Drainage treatment apparatus and method
JP2000254660A (en) Removing method of phosphorus in industrial waste water
WO2006002095A3 (en) Nitrogen removal system and method for wastewater treatment lagoons
GB1516673A (en) Process for the purification of waste water
KR20000006600A (en) Preparing method for wastewater purifying agent
JPH1133581A (en) Method for processing organic wastewater
JPS591120B2 (en) Advanced treatment method for organic wastewater

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP