EP0946435A4 - Sludge dewatering control system - Google Patents

Sludge dewatering control system

Info

Publication number: EP0946435A4
Authority: EP; European Patent Office
Prior art keywords: control system; sludge dewatering; dewatering control; sludge; dewatering
Prior art date: 1996-10-29
Legal status (The legal status 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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP97909064A

Other languages

German (de)

French (fr)

Other versions

EP0946435A1 (en

Inventor

David Waite

Rose Amal

Jing Guan

Heriberto Alejandro Bustamante

Ronald F Wukasch

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Unisearch Ltd

Original Assignee

Unisearch Ltd

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.)

1996-10-29

Filing date

1997-10-29

Publication date

2000-01-26

1997-10-29 Application filed by Unisearch Ltd filed Critical Unisearch Ltd

1999-10-06 Publication of EP0946435A1 publication Critical patent/EP0946435A1/en

2000-01-26 Publication of EP0946435A4 publication Critical patent/EP0946435A4/en

Status Withdrawn legal-status Critical Current

Links

Classifications

- 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
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging
- 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

EP97909064A 1996-10-29 1997-10-29 Sludge dewatering control system Withdrawn EP0946435A4 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
AUPO328596		1996-10-29
AUPO3285A AUPO328596A0 (en)	1996-10-29	1996-10-29	Sludge dewatering control system
PCT/AU1997/000723 WO1998018730A1 (en)	1996-10-29	1997-10-29	Sludge dewatering control system

Publications (2)

Publication Number	Publication Date
EP0946435A1 EP0946435A1 (en)	1999-10-06
EP0946435A4 true EP0946435A4 (en)	2000-01-26

Family

ID=3797594

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97909064A Withdrawn EP0946435A4 (en)	1996-10-29	1997-10-29	Sludge dewatering control system

Country Status (7)

Country	Link
EP (1)	EP0946435A4 (en)
JP (1)	JP2001502601A (en)
KR (1)	KR20000052923A (en)
AU (1)	AUPO328596A0 (en)
CA (1)	CA2270207A1 (en)
NO (1)	NO992070L (en)
WO (1)	WO1998018730A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10115179B4 (en) *	2001-03-27	2005-12-15	Clausthaler Umwelttechnikinstitut Gmbh, (Cutec-Institut)	Method and measuring arrangement for automatically determining the concentration factor of conditioned sewage sludge
CN108693775A (en) *	2018-05-24	2018-10-23	株洲时代新材料科技股份有限公司	A kind of full-automatic, adaptive, ratio regulation and control sludge conditioning method
NL2021302B1 (en) *	2018-07-13	2020-01-20	Haskoningdhv Nederland Bv	Method for dewatering watery biomass
CN112777918B (en) *	2020-12-11	2022-08-12	北京林业大学	Online control method for sludge oxidation conditioning based on fractal dimension and granularity

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4752131A (en) *	1984-04-04	1988-06-21	Basf Aktiengesellschaft	Laser-optical arrangement for measuring the degree of dispersion in flowing systems
US5037559A (en) *	1986-12-22	1991-08-06	Passavant-Werke Ag	Process for conditioning and dewatering sludges
US5366622A (en) *	1990-09-20	1994-11-22	Passavant-Werke Ag	Procedure and installation for conditioning and subsequent dewatering of sludge
DE4442418A1 (en) *	1994-11-29	1996-05-30	Joachim Friedrich Knauer	Dosing unit for batch addn. of flocculant to aq. sludge from storage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3872838T2 (en) *	1987-11-19	1993-01-14	Calgon Corp	SYSTEM AND METHOD FOR MONITORING AND CONTROLLING A LIQUID-SOLID SEPARATION METHOD.
US5380440A (en) *	1992-06-09	1995-01-10	Anikem Pty. Limited	Two dewatering of slurries controlled by video system
AT401112B (en) *	1993-11-12	1996-06-25	Andritz Patentverwaltung	METHOD AND DEVICE FOR CONTROLLING OR CONTROL OF A SOLID-LIQUID SEPARATION PROCESS

1996
- 1996-10-29 AU AUPO3285A patent/AUPO328596A0/en not_active Abandoned
1997
- 1997-10-29 CA CA002270207A patent/CA2270207A1/en not_active Abandoned
- 1997-10-29 KR KR1019990703791A patent/KR20000052923A/en not_active Application Discontinuation
- 1997-10-29 EP EP97909064A patent/EP0946435A4/en not_active Withdrawn
- 1997-10-29 WO PCT/AU1997/000723 patent/WO1998018730A1/en not_active Application Discontinuation
- 1997-10-29 JP JP10519818A patent/JP2001502601A/en active Pending
1999
- 1999-04-29 NO NO992070A patent/NO992070L/en not_active Application Discontinuation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4752131A (en) *	1984-04-04	1988-06-21	Basf Aktiengesellschaft	Laser-optical arrangement for measuring the degree of dispersion in flowing systems
US5037559A (en) *	1986-12-22	1991-08-06	Passavant-Werke Ag	Process for conditioning and dewatering sludges
US5366622A (en) *	1990-09-20	1994-11-22	Passavant-Werke Ag	Procedure and installation for conditioning and subsequent dewatering of sludge
DE4442418A1 (en) *	1994-11-29	1996-05-30	Joachim Friedrich Knauer	Dosing unit for batch addn. of flocculant to aq. sludge from storage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9818730A1 *

Also Published As

Publication number	Publication date
NO992070L (en)	1999-06-11
KR20000052923A (en)	2000-08-25
EP0946435A1 (en)	1999-10-06
JP2001502601A (en)	2001-02-27
CA2270207A1 (en)	1998-05-07
WO1998018730A1 (en)	1998-05-07
AUPO328596A0 (en)	1996-11-21
NO992070D0 (en)	1999-04-29

Legal Events

Date	Code	Title	Description
1999-08-20	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1999-10-06	17P	Request for examination filed	Effective date: 19990506
1999-10-06	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
2000-01-26	A4	Supplementary search report drawn up and despatched	Effective date: 19991210
2000-01-26	AK	Designated contracting states	Kind code of ref document: A4 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
2000-09-29	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
2000-11-15	18W	Application withdrawn	Withdrawal date: 20000919

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