GB2255725B - Liquid treatment - Google Patents

Liquid treatment

Info

Publication number
GB2255725B
GB2255725B GB9126941A GB9126941A GB2255725B GB 2255725 B GB2255725 B GB 2255725B GB 9126941 A GB9126941 A GB 9126941A GB 9126941 A GB9126941 A GB 9126941A GB 2255725 B GB2255725 B GB 2255725B
Authority
GB
United Kingdom
Prior art keywords
liquid treatment
treatment
liquid
Prior art date
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.)
Filing date
Publication date
Application filed by Hydro International Ltd filed Critical Hydro International Ltd
Publication of GB9126941D0 publication Critical patent/GB9126941D0/en
Priority to DE69221617T priority Critical patent/DE69221617D1/en
Priority to JP4510489A priority patent/JPH06507573A/en
Priority to NZ242779A priority patent/NZ242779A/en
Priority to PCT/GB1992/000894 priority patent/WO1992020627A1/en
Priority to AU17947/92A priority patent/AU1794792A/en
Priority to US08/146,159 priority patent/US5480559A/en
Priority to CA002102813A priority patent/CA2102813C/en
Priority to EP92910379A priority patent/EP0588820B1/en
Priority to IE156092A priority patent/IE921560A1/en
Publication of GB2255725A publication Critical patent/GB2255725A/en
Application granted granted Critical
Publication of GB2255725B publication Critical patent/GB2255725B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
NZ242779A NZ242779A (en) 1991-05-17 1992-05-18 Flocculating and removing non-settleable matter from sewage in two-stage treatment
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
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
JP4510489A JPH06507573A (en) 1991-05-17 1992-05-18 liquid handling
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

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
GB9110733D0 (en) 1991-07-10
GB9126941D0 (en) 1992-02-19
ZA923609B (en) 1993-02-24

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20111218