CA2157916A1 - Method of cleaning and maintaining potable water distribution pipe systems - Google Patents

Method of cleaning and maintaining potable water distribution pipe systems

Info

Publication number
CA2157916A1
CA2157916A1 CA2157916A CA2157916A CA2157916A1 CA 2157916 A1 CA2157916 A1 CA 2157916A1 CA 2157916 A CA2157916 A CA 2157916A CA 2157916 A CA2157916 A CA 2157916A CA 2157916 A1 CA2157916 A1 CA 2157916A1
Authority
CA
Canada
Prior art keywords
pipe
sediment
scale
water distribution
cleaning
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
CA2157916A
Other languages
French (fr)
Other versions
CA2157916C (en
Inventor
Allen C. Hieatt
Jerome H. Ludwig
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.)
HERC Products Inc
Original Assignee
Individual
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 US08/036,188 external-priority patent/US5360488A/en
Application filed by Individual filed Critical Individual
Publication of CA2157916A1 publication Critical patent/CA2157916A1/en
Application granted granted Critical
Publication of CA2157916C publication Critical patent/CA2157916C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/08—Acids
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/265—Carboxylic acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3218—Alkanolamines or alkanolimines
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A method of cleaning and maintaining potable water distribution system which have reduced flow due to an increase of water scale deposits, sediment, and the like on the inside surface of the pipe is disclosed. An aqueous acidic cleaning solution (12) is introduced and circulated through the pipe (25) to be treated for a sufficient time to dissolve and loosen the scale and sediment, and the spent solution containing dissolved or suspended scale and sediment is flushed from the pipe (25) to provide a cleaned pipe with improved water flow.
It is also desirable to flush the water distribution pipe system with high pressure water after the treatment to remove loosened scale and sediment that was not removed during the circulation and flushing of the treating solution (12).
CA002157916A 1993-03-23 1994-03-22 Method of cleaning and maintaining potable water distribution pipe systems Expired - Fee Related CA2157916C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US036,188 1993-03-23
US08/036,188 US5360488A (en) 1993-03-23 1993-03-23 Method of cleaning and maintaining water distribution pipe systems
US20995394A 1994-03-17 1994-03-17
US209,953 1994-03-17
PCT/US1994/003065 WO1994021865A1 (en) 1993-03-23 1994-03-22 Method of cleaning and maintaining potable water distribution pipe systems

Publications (2)

Publication Number Publication Date
CA2157916A1 true CA2157916A1 (en) 1994-09-29
CA2157916C CA2157916C (en) 2000-01-25

Family

ID=26712917

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002157916A Expired - Fee Related CA2157916C (en) 1993-03-23 1994-03-22 Method of cleaning and maintaining potable water distribution pipe systems

Country Status (8)

Country Link
EP (1) EP0690944B1 (en)
JP (1) JP3597193B2 (en)
AT (1) ATE170583T1 (en)
AU (1) AU673426B2 (en)
BR (1) BR9406139A (en)
CA (1) CA2157916C (en)
DE (1) DE69413017T2 (en)
WO (1) WO1994021865A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9505483A (en) * 1994-06-20 1997-08-12 Herc Prod Inc Process for cleaning groundwater distribution system and process for cleaning drinking system for drinking groundwater distribution
US5755155A (en) * 1997-02-28 1998-05-26 Tetra Laval Holdings & Finance S.A. Aseptic process interface group
JPH11141713A (en) * 1997-09-05 1999-05-28 Tetra Laval Holdings & Finance Sa Sterile valve assembly
JP2002052322A (en) 2000-08-10 2002-02-19 Kurita Water Ind Ltd Washing method
JP4283098B2 (en) * 2003-12-04 2009-06-24 花王株式会社 Metal component processing solution
JP5200326B2 (en) * 2006-03-30 2013-06-05 栗田工業株式会社 Scale cleaner and scale removal method
WO2016068525A1 (en) * 2014-10-27 2016-05-06 이기원 Method for removing scale
RU2594426C1 (en) * 2015-02-26 2016-08-20 Акционерное общество "Научно-исследовательский и проектный институт по переработке газа" (АО "НИПИгазпереработка") Method for cleaning inner surface of process equipment and pipelines (versions)
CA2969174A1 (en) * 2017-06-02 2018-12-02 Fluid Energy Group Ltd. Novel modified acid compositions as alternatives to conventional acids in the oil and gas industry
DE202019003089U1 (en) * 2019-07-24 2020-10-27 Josef Schallameier Decalcification of pressurized pipes of any length

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667487A (en) * 1970-12-11 1972-06-06 Richardson Chem Cleaning Servi Integrated chemical cleaning apparatus
US4025359A (en) * 1974-04-01 1977-05-24 Connelly Jr George F Inhibited acid composition for cleaning water systems
EP0027980B1 (en) * 1979-10-24 1984-01-25 Georg Fischer Aktiengesellschaft Method and apparatus for rinsing, cleaning, disinfecting and coating a conduit on the interior, especially a water conduit in a new construction
DE3244443C2 (en) * 1982-12-01 1986-11-06 Späne, Rainer, 7888 Rheinfelden Process for removing iron, calcium and manganese-containing ocher deposits and / or sintering from facilities operated for water supply
DE3583586D1 (en) * 1984-11-30 1991-08-29 Feldmann Chemie Gmbh USE OF MIXTURE OF ORGANIC AND / OR INORGANIC ACIDS AND / OR ACID SALTS FOR THE REMOVAL OF IRON AND MANGANIZED DEPOSITS AND CONSTRUCTIONS.
FR2602571B1 (en) * 1986-08-06 1989-02-03 Assainissement Rationnel Pompa METHOD FOR CLEANING A PIPELINE, PARTICULARLY OF A DRINKING WATER DISTRIBUTION NETWORK AND SYSTEM FOR CARRYING OUT SAID METHOD
DE3631459A1 (en) * 1986-09-16 1988-03-24 Wegener Paul METHOD FOR CLEANING THE INTERIOR OF BRANCHED PIPELINES AND / OR AGGREGATES AND DEVICE FOR CARRYING OUT THIS METHOD
DE3731441A1 (en) * 1987-08-13 1989-02-23 Imhof Elisabeth Process and device for cleaning, corrosion removal, descaling if appropriate, and sealing of building water installations
DE3828229A1 (en) * 1988-08-19 1990-02-22 Feldmann Chemie Gmbh Means for cleaning, disinfection and maintaining drinking water plants and beverage industry plants
DE4015201A1 (en) * 1990-05-11 1991-11-14 Heimo Wessollek CLEANER FOR DRINKING WATER SYSTEMS
DE4015202A1 (en) * 1990-05-11 1991-11-14 Heimo Wessollek CLEANER FOR DRINKING WATER SYSTEMS
US5322635A (en) * 1991-05-16 1994-06-21 H.E.R.C. Incorporated Soap compositions of carboxylic acids and amines useful in removal and prevention of scale
DE4125315C2 (en) * 1991-07-31 1995-09-28 Oertzen Arndt H Gmbh & Co Device for cleaning pipelines

Also Published As

Publication number Publication date
WO1994021865A1 (en) 1994-09-29
ATE170583T1 (en) 1998-09-15
JPH08509908A (en) 1996-10-22
DE69413017T2 (en) 1999-01-28
EP0690944B1 (en) 1998-09-02
AU6490394A (en) 1994-10-11
BR9406139A (en) 1996-01-30
CA2157916C (en) 2000-01-25
EP0690944A1 (en) 1996-01-10
DE69413017D1 (en) 1998-10-08
JP3597193B2 (en) 2004-12-02
AU673426B2 (en) 1996-11-07

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