GB2255725B - Liquid treatment - Google Patents

Liquid treatment

Info

Publication number: GB2255725B
Authority: GB; United Kingdom
Prior art keywords: liquid treatment; treatment; liquid
Prior art date: 1991-05-17
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.): Expired - Lifetime

Application number

GB9126941A

Other versions

GB2255725A (en

GB9126941D0 (en

Inventor

Robert Philip Maudslay Smisson

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.)

Hydro International Ltd

Original Assignee

Hydro International 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.)

1991-05-17

Filing date

1991-12-19

Publication date

1995-08-30

1991-12-19 Application filed by Hydro International Ltd filed Critical Hydro International Ltd

1992-02-19 Publication of GB9126941D0 publication Critical patent/GB9126941D0/en

1992-05-18 Priority to AU17947/92A priority Critical patent/AU1794792A/en

1992-05-18 Priority to NZ242779A priority patent/NZ242779A/en

1992-05-18 Priority to JP4510489A priority patent/JPH06507573A/en

1992-05-18 Priority to US08/146,159 priority patent/US5480559A/en

1992-05-18 Priority to DE69221617T priority patent/DE69221617D1/en

1992-05-18 Priority to PCT/GB1992/000894 priority patent/WO1992020627A1/en

1992-05-18 Priority to CA002102813A priority patent/CA2102813C/en

1992-05-18 Priority to EP92910379A priority patent/EP0588820B1/en

1992-07-01 Priority to IE156092A priority patent/IE921560A1/en

1992-11-18 Publication of GB2255725A publication Critical patent/GB2255725A/en

1995-08-30 Application granted granted Critical

1995-08-30 Publication of GB2255725B publication Critical patent/GB2255725B/en

2011-12-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- C02F1/5281—Installations for water purification using chemical agents
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone

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)
Separation Of Suspended Particles By Flocculating Agents (AREA)

GB9126941A 1991-05-17 1991-12-19 Liquid treatment Expired - Lifetime GB2255725B (en)

Priority Applications (9)

Application Number	Priority Date	Filing Date	Title
CA002102813A CA2102813C (en)	1991-05-17	1992-05-18	Liquid treatment
EP92910379A EP0588820B1 (en)	1991-05-17	1992-05-18	Liquid treatment
JP4510489A JPH06507573A (en)	1991-05-17	1992-05-18	liquid handling
US08/146,159 US5480559A (en)	1991-05-17	1992-05-18	Liquid treatment
DE69221617T DE69221617D1 (en)	1991-05-17	1992-05-18	TREATMENT OF LIQUID
PCT/GB1992/000894 WO1992020627A1 (en)	1991-05-17	1992-05-18	Liquid treatment
AU17947/92A AU1794792A (en)	1991-05-17	1992-05-18	Liquid treatment
NZ242779A NZ242779A (en)	1991-05-17	1992-05-18	Flocculating and removing non-settleable matter from sewage in two-stage treatment
IE156092A IE921560A1 (en)	1991-05-17	1992-07-01	Liquid treatment

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB919110733A GB9110733D0 (en)	1991-05-17	1991-05-17	Sewage treatment

Publications (3)

Publication Number	Publication Date
GB9126941D0 GB9126941D0 (en)	1992-02-19
GB2255725A GB2255725A (en)	1992-11-18
GB2255725B true GB2255725B (en)	1995-08-30

Family

ID=10695187

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB919110733A Pending GB9110733D0 (en)	1991-05-17	1991-05-17	Sewage treatment
GB9126941A Expired - Lifetime GB2255725B (en)	1991-05-17	1991-12-19	Liquid treatment

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB919110733A Pending GB9110733D0 (en)	1991-05-17	1991-05-17	Sewage treatment

Country Status (2)

Country	Link
GB (2)	GB9110733D0 (en)
ZA (1)	ZA923609B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN115259487B (en) *	2022-07-27	2024-01-23	四川天宇油脂化学有限公司	Industrial wastewater treatment method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1019035A (en) *	1963-07-22	1966-02-02	Head Wrightson & Co Ltd	Improvements relating to the treatment of suspensions of finely-divided solids in liquids
US3246762A (en) *	1962-05-31	1966-04-19	Sontheimer Heinrich	Apparatus for the treatment of contaminated liquid wastes by flocculation and clarification
GB1153032A (en) *	1965-07-07	1969-05-21	Yorkshire Dyeware & Chem Co	Separation of Solid Particulate Material from Liquid Carriers by Settling
US3680698A (en) *	1970-02-25	1972-08-01	Occidental Petroleum Corp	Process for the treatment of slimes and waste solids
GB2082941A (en) *	1980-08-11	1982-03-17	Hydro Research & Dev Uk Ltd	A separator
GB2158741A (en) *	1984-05-14	1985-11-20	Hydro Int Ltd	Separation of components of a fluid mixture

1991
- 1991-05-17 GB GB919110733A patent/GB9110733D0/en active Pending
- 1991-12-19 GB GB9126941A patent/GB2255725B/en not_active Expired - Lifetime
1992
- 1992-05-18 ZA ZA923609A patent/ZA923609B/en unknown

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3246762A (en) *	1962-05-31	1966-04-19	Sontheimer Heinrich	Apparatus for the treatment of contaminated liquid wastes by flocculation and clarification
GB1019035A (en) *	1963-07-22	1966-02-02	Head Wrightson & Co Ltd	Improvements relating to the treatment of suspensions of finely-divided solids in liquids
GB1153032A (en) *	1965-07-07	1969-05-21	Yorkshire Dyeware & Chem Co	Separation of Solid Particulate Material from Liquid Carriers by Settling
US3680698A (en) *	1970-02-25	1972-08-01	Occidental Petroleum Corp	Process for the treatment of slimes and waste solids
GB2082941A (en) *	1980-08-11	1982-03-17	Hydro Research & Dev Uk Ltd	A separator
GB2158741A (en) *	1984-05-14	1985-11-20	Hydro Int Ltd	Separation of components of a fluid mixture

Also Published As

Publication number	Publication date
GB2255725A (en)	1992-11-18
ZA923609B (en)	1993-02-24
GB9126941D0 (en)	1992-02-19
GB9110733D0 (en)	1991-07-10

Publication	Publication Date	Title
GB9127150D0 (en)	1992-02-19	Novel treatment
GB9215633D0 (en)	1992-09-09	Novel treatment
EP0498622A3 (en)	1993-03-17	Liquid vaporizer-feeder
GB9203039D0 (en)	1992-03-25	Treatment
GB9122618D0 (en)	1991-12-04	Fluid treatment apparatus
GB9211148D0 (en)	1992-07-08	Novel treatment
GB9226957D0 (en)	1993-02-17	Novel treatment
GB9111028D0 (en)	1991-07-17	Fluid treatment system
GB9222248D0 (en)	1992-12-09	Liquid treatment apparatus
AP9300527A0 (en)	1993-07-31	Novel treatment
GB9123963D0 (en)	1992-01-02	Liquid treatment plant
GB2255725B (en)	1995-08-30	Liquid treatment
HK1011508A1 (en)	1999-07-09	Treatment for liquids
GB9203637D0 (en)	1992-04-08	Novel treatment
GB9216118D0 (en)	1992-09-09	Liquid treatment
GB9225859D0 (en)	1993-02-03	Novel treatment
GB9214295D0 (en)	1992-08-19	Fluid treatment
GB9104323D0 (en)	1991-04-17	Liquid treatment apparatus
PHUM7761Z (en)	1994-03-24	Liquid dispenser-cooler
GB9104175D0 (en)	1991-04-17	New treatment
GB9200360D0 (en)	1992-02-26	Treatment
GB9210596D0 (en)	1992-07-01	Treatment
GB9200359D0 (en)	1992-02-26	Treatment
GB9200361D0 (en)	1992-02-26	Treatment
GB9203249D0 (en)	1992-04-01	Treatment

Legal Events

Date	Code	Title	Description
1993-11-03	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
2012-01-11	PE20	Patent expired after termination of 20 years	Expiry date: 20111218