CA2401271A1 - Treatment of scale - Google Patents

Treatment of scale Download PDF

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Publication number
CA2401271A1
CA2401271A1 CA002401271A CA2401271A CA2401271A1 CA 2401271 A1 CA2401271 A1 CA 2401271A1 CA 002401271 A CA002401271 A CA 002401271A CA 2401271 A CA2401271 A CA 2401271A CA 2401271 A1 CA2401271 A1 CA 2401271A1
Authority
CA
Canada
Prior art keywords
scale
monomer
antiscalent
salts
ethylenically unsaturated
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.)
Granted
Application number
CA002401271A
Other languages
French (fr)
Other versions
CA2401271C (en
Inventor
Jean Achille Emile Robert Cluyse
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.)
Ciba Specialty Chemicals Water Treatments Ltd
Original Assignee
Ciba Specialty Chemicals Water Treatments Limited
Jean Achille Emile Robert Cluyse
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 Ciba Specialty Chemicals Water Treatments Limited, Jean Achille Emile Robert Cluyse filed Critical Ciba Specialty Chemicals Water Treatments Limited
Publication of CA2401271A1 publication Critical patent/CA2401271A1/en
Application granted granted Critical
Publication of CA2401271C publication Critical patent/CA2401271C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering 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
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention

Abstract

A method for reducing/preventing the formation of scale or removal of scale in a municipal or industrial waste water treatment facility comprising introducing an antiscalent composition which comprises: A) A water soluble polymer of molecular weight below 20,000 and containing anionic groups, and B) A sequesterant compound containing at least one phosphonate group and salts thereof, characterised in that component (A) is formed from a monomer or monomer blend consisting of one or more ethylenically unsaturated carboxylic acid monomer(s) and optionally not more that 50 % by weight of an ethylenically unsaturated water-soluble nonionic monomer. Preferred antiscalent compositions include a blend of A) a polymer of acrylic acid and/or maleic acid and B) diethylentriamine penta (methylenephosphonic acid) or salts thereof. Also claimed is the use of the above composition for the treatment of struvite scale.
CA002401271A 2000-02-29 2001-02-16 Treatment of scale Expired - Fee Related CA2401271C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/515,729 US6391207B1 (en) 2000-02-29 2000-02-29 Treatment of scale
US09/515,729 2000-02-29
PCT/EP2001/001734 WO2001064006A2 (en) 2000-02-29 2001-02-16 Treatment of scale

Publications (2)

Publication Number Publication Date
CA2401271A1 true CA2401271A1 (en) 2001-09-07
CA2401271C CA2401271C (en) 2007-03-13

Family

ID=24052504

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002401271A Expired - Fee Related CA2401271C (en) 2000-02-29 2001-02-16 Treatment of scale

Country Status (8)

Country Link
US (1) US6391207B1 (en)
EP (1) EP1332114A2 (en)
JP (1) JP2003530204A (en)
KR (1) KR20020075451A (en)
AU (2) AU5464601A (en)
CA (1) CA2401271C (en)
HU (1) HUP0301809A2 (en)
WO (1) WO2001064006A2 (en)

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US6589461B2 (en) * 1999-11-18 2003-07-08 Hansen, Incapacitated Austin C. Method of making a treatment chemical cartridge
MY129053A (en) * 2001-06-06 2007-03-30 Thermphos Trading Gmbh Composition for inhibiting calcium salt scale
DE10207088A1 (en) * 2002-02-20 2003-08-28 Bayer Ag Prevention of incrustations of phosphate-containing double salts
US6863825B2 (en) * 2003-01-29 2005-03-08 Union Oil Company Of California Process for removing arsenic from aqueous streams
US7182872B2 (en) * 2003-08-01 2007-02-27 Wisconsin Alumni Research Foundation Struvite crystallization
US7396453B1 (en) * 2005-04-19 2008-07-08 Procorp Enterprises, Llc Hydraulically integrated solids/liquid separation system for wastewater treatment
US7270796B2 (en) * 2005-08-11 2007-09-18 Castion Corporation Ammonium/ammonia removal from a stream
US20080156726A1 (en) * 2006-09-06 2008-07-03 Fassbender Alexander G Integrating recycle stream ammonia treatment with biological nutrient removal
US20080053909A1 (en) * 2006-09-06 2008-03-06 Fassbender Alexander G Ammonia recovery process
US20080053913A1 (en) * 2006-09-06 2008-03-06 Fassbender Alexander G Nutrient recovery process
US8066874B2 (en) 2006-12-28 2011-11-29 Molycorp Minerals, Llc Apparatus for treating a flow of an aqueous solution containing arsenic
US8252087B2 (en) 2007-10-31 2012-08-28 Molycorp Minerals, Llc Process and apparatus for treating a gas containing a contaminant
US8349764B2 (en) 2007-10-31 2013-01-08 Molycorp Minerals, Llc Composition for treating a fluid
US20090107925A1 (en) * 2007-10-31 2009-04-30 Chevron U.S.A. Inc. Apparatus and process for treating an aqueous solution containing biological contaminants
US8153006B1 (en) 2008-06-05 2012-04-10 Procorp Enterprises, Llc Anaerobic treatment process for ethanol production
WO2011005770A1 (en) * 2009-07-06 2011-01-13 Molycorp Minerals Llc Ceria for use as an antimicrobial barrier and disinfectant in a wound dressing
US8398855B1 (en) 2009-09-30 2013-03-19 Philip Bruno Pedros BioCAST process
CZ302805B6 (en) * 2010-05-28 2011-11-16 Vysoká Škola Chemicko-Technologická Removal of deposits and inhibition of corrosion on heat-exchange surfaces of power plants
US9233863B2 (en) 2011-04-13 2016-01-12 Molycorp Minerals, Llc Rare earth removal of hydrated and hydroxyl species
US20120318745A1 (en) * 2011-06-17 2012-12-20 Multiform Harvest Inc. Method for inhibiting flocculation in wastewater treatment
US9845258B1 (en) * 2012-09-19 2017-12-19 Premier Magnesia, Llc Compositions and methods for treating wastewater
CN103739091A (en) * 2014-01-08 2014-04-23 河南工业大学 Method for preventing anaerobic effluent struvite scaling
MX370462B (en) 2014-03-07 2019-12-13 Secure Natural Resources Llc Cerium (iv) oxide with exceptional arsenic removal properties.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506062A (en) 1982-08-09 1985-03-19 Allied Colloids Limited Inverse suspension polymerization process
GB8309275D0 (en) 1983-04-06 1983-05-11 Allied Colloids Ltd Dissolution of water soluble polymers in water
EP0127388B1 (en) 1983-05-20 1986-12-30 Ciba Specialty Chemicals Water Treatments Limited Water soluble polymers
GB8401206D0 (en) 1984-01-17 1984-02-22 Allied Colloids Ltd Polymers and aqueous solutions
GB8428984D0 (en) 1984-11-16 1984-12-27 Allied Colloids Ltd Water soluble polymers
US4900451A (en) 1989-02-01 1990-02-13 Betz Laboratories, Inc. Method of controlling manganese deposition in open recirculating aqueous systems
US5087376A (en) * 1990-10-15 1992-02-11 Calgon Corporation Multifunctional scale inhibitors
US5352365A (en) * 1993-02-22 1994-10-04 Fuller Richard L Process for removing scale, and reducing scale formation in sewage treatment plants
US5454954A (en) 1993-09-21 1995-10-03 Calgon Corporation Scale control in metal mining circuits using polyether polyamino methylene phosphonates
US5593595A (en) * 1995-10-06 1997-01-14 Calgon Corporation Method for controlling scale using a synergistic phosphonate combination
US5798043A (en) * 1997-12-01 1998-08-25 Khudenko Engineering, Inc. Control of anaerobic wastewater treatment
US6063289A (en) 1998-10-01 2000-05-16 Albright & Wilson Americas Inc. Method for controlling scale using synergistic phosphonate blends

Also Published As

Publication number Publication date
EP1332114A2 (en) 2003-08-06
AU5464601A (en) 2001-09-12
CA2401271C (en) 2007-03-13
WO2001064006A3 (en) 2003-05-08
US6391207B1 (en) 2002-05-21
AU2001254646B2 (en) 2006-09-21
JP2003530204A (en) 2003-10-14
WO2001064006A2 (en) 2001-09-07
HUP0301809A2 (en) 2003-09-29
KR20020075451A (en) 2002-10-04

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