DK1154958T3 - Process for conditioning sludge - Google Patents

Process for conditioning sludge

Info

Publication number
DK1154958T3
DK1154958T3 DK00902507T DK00902507T DK1154958T3 DK 1154958 T3 DK1154958 T3 DK 1154958T3 DK 00902507 T DK00902507 T DK 00902507T DK 00902507 T DK00902507 T DK 00902507T DK 1154958 T3 DK1154958 T3 DK 1154958T3
Authority
DK
Denmark
Prior art keywords
sludge
conditioning sludge
lime
conditioning
added
Prior art date
Application number
DK00902507T
Other languages
Danish (da)
Inventor
Marc Joseph Henri Remy
Regis Poisson
Henri Rene Langelin
Eric Judenne
Original Assignee
Lhoist Rech & Dev Sa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3891745&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1154958(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lhoist Rech & Dev Sa filed Critical Lhoist Rech & Dev Sa
Application granted granted Critical
Publication of DK1154958T3 publication Critical patent/DK1154958T3/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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • 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
    • C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
    • C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
    • 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
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products

Abstract

A method for conditioning sludge, whereby lime and at least one flocculent organic component are added and the sludge is flocculated. The inventive method is characterised in that the added lime only increases the pH of the sludge to a value which is above the pH that causes degradation of the applied flocculent organic component when the flocculation has finished.
DK00902507T 1999-02-08 2000-02-03 Process for conditioning sludge DK1154958T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9900084A BE1012467A3 (en) 1999-02-08 1999-02-08 Process of sludge conditioning.
PCT/BE2000/000014 WO2000047527A1 (en) 1999-02-08 2000-02-03 Method for conditioning sludge

Publications (1)

Publication Number Publication Date
DK1154958T3 true DK1154958T3 (en) 2004-08-02

Family

ID=3891745

Family Applications (1)

Application Number Title Priority Date Filing Date
DK00902507T DK1154958T3 (en) 1999-02-08 2000-02-03 Process for conditioning sludge

Country Status (12)

Country Link
EP (1) EP1154958B1 (en)
AT (1) ATE263123T1 (en)
AU (1) AU2425700A (en)
BE (1) BE1012467A3 (en)
CZ (1) CZ302338B6 (en)
DE (1) DE60009466T2 (en)
DK (1) DK1154958T3 (en)
ES (1) ES2216855T3 (en)
PL (1) PL197139B1 (en)
PT (1) PT1154958E (en)
SK (1) SK284697B6 (en)
WO (1) WO2000047527A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2800367B1 (en) * 1999-11-03 2001-12-28 Air Liquide Electronics Sys PROCESS FOR REMOVING SOLID PARTICLES, IN PARTICULAR SILICA AND / OR ALUMINA FROM AQUEOUS EFFLUENTS
FR2875228B1 (en) 2004-09-15 2006-12-15 Marc Gombart USE OF PARTIALLY PRE-HYDRATED LIME IN THE SEPARATION OF A SUSPENSION OF SOLID / LIQUID MATERIALS, METHOD OF TREATMENT OF SLUDGE AND PURIFIED SLUDGE OBTAINED BY THIS METHOD
ITMI20081116A1 (en) * 2008-06-19 2009-12-20 Technelep Srl PROCESS FOR THE PRODUCTION OF DEFECATION GYPSUM FOR AGRICULTURAL USE AND FORMULATIONS THAT CONTAIN IT
BE1019037A3 (en) 2009-03-17 2012-02-07 Lhoist Rech & Dev Sa LIME COMPOSITIONS, PROCESS FOR THE PRODUCTION THEREOF AND USE THEREOF IN TREATMENT OF WATER AND SLUDGE.
PT2408719E (en) * 2009-03-17 2015-12-01 Lhoist Rech & Dev Sa Compositions for the conditioning of mud
CA2823987A1 (en) * 2011-01-31 2012-08-09 Ashland Licensing And Intellectual Property Llc Method for dewatering sludge
FR3023280B1 (en) * 2014-07-04 2019-11-22 Lixival PROCESS FOR TREATING LIQUID EFFLUENTS
WO2016041643A1 (en) 2014-09-08 2016-03-24 S.A. Lhoist Recherche Et Developpement Process for manufacturing a milk of slaked lime of great fineness and milk of lime of great fineness thereby obtained
CN109231757A (en) * 2018-09-28 2019-01-18 浙江广安建设有限公司 A kind of cast-in-situ bored pile discarded slurry mud-water separation reagent and its separation method
CN114262133A (en) * 2021-12-15 2022-04-01 中南水务科技有限公司 Low-temperature sludge drying conditioner and use method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941942A (en) * 1955-06-14 1960-06-21 Eimco Corp Method of dewatering foundry sand slimes
HU189058B (en) * 1984-03-07 1986-06-30 Merei,Jozsef,De Method for dewatering sludges originated after aerobic and anaerobic decomposing of domestic sewages
JPS63158200A (en) * 1986-12-22 1988-07-01 Dia Furotsuku Kk Dehydration of sludge
JPH0813357B2 (en) * 1990-06-05 1996-02-14 株式会社海洋蘇生技術研究所 Treatment method of sludge water collected from aquaculture fishing grounds
JPH1110151A (en) * 1997-06-19 1999-01-19 Tohoku Electric Power Co Inc Treatment equipment for sulfuric acid ion containing waste water

Also Published As

Publication number Publication date
EP1154958B1 (en) 2004-03-31
ES2216855T3 (en) 2004-11-01
EP1154958A1 (en) 2001-11-21
PL197139B1 (en) 2008-03-31
CZ302338B6 (en) 2011-03-16
SK10812001A3 (en) 2002-03-05
SK284697B6 (en) 2005-09-08
PL350025A1 (en) 2002-10-21
DE60009466T2 (en) 2005-03-24
BE1012467A3 (en) 2000-11-07
ATE263123T1 (en) 2004-04-15
AU2425700A (en) 2000-08-29
CZ20012788A3 (en) 2002-07-17
DE60009466D1 (en) 2004-05-06
WO2000047527A1 (en) 2000-08-17
PT1154958E (en) 2004-08-31

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