WO2000027759A3 - Process and composition for water recycle - Google Patents

Process and composition for water recycle Download PDF

Info

Publication number
WO2000027759A3
WO2000027759A3 PCT/US1999/026061 US9926061W WO0027759A3 WO 2000027759 A3 WO2000027759 A3 WO 2000027759A3 US 9926061 W US9926061 W US 9926061W WO 0027759 A3 WO0027759 A3 WO 0027759A3
Authority
WO
WIPO (PCT)
Prior art keywords
flocculents
water
composition
processes
purification
Prior art date
Application number
PCT/US1999/026061
Other languages
French (fr)
Other versions
WO2000027759A2 (en
Inventor
Jean Wevers
Joost Ignace Dewaele
Hauwermeiren Tim Joris Mar Van
Meleksima Togay
Philip Frank Souter
Wonterghem Lucresse Gemma Van
Original Assignee
Procter & Gamble
Jean Wevers
Joost Ignace Dewaele
Hauwermeiren Tim Joris Maria V
Meleksima Togay
Philip Frank Souter
Wonterghem Lucresse Gemma Van
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
Priority claimed from GB9824398A external-priority patent/GB2343446A/en
Priority claimed from GB9915626A external-priority patent/GB2351730A/en
Application filed by Procter & Gamble, Jean Wevers, Joost Ignace Dewaele, Hauwermeiren Tim Joris Maria V, Meleksima Togay, Philip Frank Souter, Wonterghem Lucresse Gemma Van filed Critical Procter & Gamble
Priority to AU16070/00A priority Critical patent/AU1607000A/en
Priority to BR9915731-4A priority patent/BR9915731A/en
Publication of WO2000027759A2 publication Critical patent/WO2000027759A2/en
Publication of WO2000027759A3 publication Critical patent/WO2000027759A3/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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/547—Tensides
    • 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
    • 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
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/002—Grey water, e.g. from clothes washers, showers or dishwashers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Detergent Compositions (AREA)

Abstract

A process for purification of waste water from domestic laundry washing processes and re-using the water, preferably in washing or rinsing steps. The process uses flocculents for removal of soils by floc formation and separation. The invention also relates to water purification compositions comprising primary and secondary flocculents for additions simultaneously or preferably sequentially for use in the claimed processes, kits supplying unit dosages of flocculents, apparatus for separating flocs from treated water and detergent compositions comprising flocculents.
PCT/US1999/026061 1998-11-07 1999-11-05 Process and composition for water recycle WO2000027759A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU16070/00A AU1607000A (en) 1998-11-07 1999-11-05 Process and composition for water recycle
BR9915731-4A BR9915731A (en) 1998-11-07 1999-11-05 Process and composition for water recycling

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9824398A GB2343446A (en) 1998-11-07 1998-11-07 Process and composition for water purification
GB9824398.3 1998-11-10
GB9915626A GB2351730A (en) 1999-07-05 1999-07-05 Treatment of laundry water
GB9915626.7 1999-07-05

Publications (2)

Publication Number Publication Date
WO2000027759A2 WO2000027759A2 (en) 2000-05-18
WO2000027759A3 true WO2000027759A3 (en) 2000-11-30

Family

ID=26314633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/026061 WO2000027759A2 (en) 1998-11-07 1999-11-05 Process and composition for water recycle

Country Status (4)

Country Link
CN (1) CN1248972C (en)
AU (1) AU1607000A (en)
BR (1) BR9915731A (en)
WO (1) WO2000027759A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6827874B2 (en) 2000-06-27 2004-12-07 The Procter & Gamble Co. Water treatment compositions
BR0111953B1 (en) 2000-06-27 2011-05-03 composition in unit dosage form, process and kit for the purification and clarification of contaminated drinking water
AU2011347794B2 (en) * 2010-12-24 2015-03-26 Unilever Global Ip Limited Water clarification composition and process
WO2012084623A1 (en) * 2010-12-24 2012-06-28 Unilever Nv Water clarification composition and process
EP2655262B1 (en) * 2010-12-24 2017-02-08 Unilever N.V. Flocculation process and device
US20130327361A1 (en) * 2010-12-24 2013-12-12 Sarmistha Biswas Flocculation process and device
CN104341032B (en) * 2013-08-02 2016-07-13 中国石油天然气股份有限公司 Coagulation treatment method for high-viscosity fracturing waste liquid of low-permeability oil field
CN105585076A (en) * 2015-12-19 2016-05-18 杭州水处理技术研究开发中心有限公司 Anti-scaling technology achieved through semipermeable membrane
EP3642406B1 (en) 2017-06-19 2021-02-17 Unilever N.V. Washing machine comprising a water purification system
CN108394976B (en) * 2018-03-30 2020-11-03 浙江大学 Floating type flocculating agent and preparation method thereof
GB202003005D0 (en) * 2020-03-02 2020-04-15 Aqua Bioscience Ltd Liquid treatment product and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466438A1 (en) * 1979-09-28 1981-04-10 Centre Tech Teinture Nettoyage Purificn. of laundry effluent for recycling - by coagulating and decanting after adding aluminium sulphate and anionic polyelectrolyte
EP0159178A2 (en) * 1984-04-11 1985-10-23 Hydro International Limited Water treatment
WO1988000927A1 (en) * 1986-08-04 1988-02-11 Continental Manufacturing & Sales Inc. Method for the treatment of sewage and other impure water
WO1988007026A1 (en) * 1986-01-16 1988-09-22 Kelet-Magyarorsza^´Gi Vizügyi Tervezo^" Va^´Llalat Process for treating microdispersed emulsions and liquids containing organic impurities

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466438A1 (en) * 1979-09-28 1981-04-10 Centre Tech Teinture Nettoyage Purificn. of laundry effluent for recycling - by coagulating and decanting after adding aluminium sulphate and anionic polyelectrolyte
EP0159178A2 (en) * 1984-04-11 1985-10-23 Hydro International Limited Water treatment
WO1988007026A1 (en) * 1986-01-16 1988-09-22 Kelet-Magyarorsza^´Gi Vizügyi Tervezo^" Va^´Llalat Process for treating microdispersed emulsions and liquids containing organic impurities
WO1988000927A1 (en) * 1986-08-04 1988-02-11 Continental Manufacturing & Sales Inc. Method for the treatment of sewage and other impure water

Also Published As

Publication number Publication date
BR9915731A (en) 2001-11-13
AU1607000A (en) 2000-05-29
WO2000027759A2 (en) 2000-05-18
CN1248972C (en) 2006-04-05
CN1331659A (en) 2002-01-16

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