CA2193494A1 - Method of Cleaning and Maintaining Potable Water Distribution Pipe Systems with a Heated Cleaning Solution - Google Patents

Method of Cleaning and Maintaining Potable Water Distribution Pipe Systems with a Heated Cleaning Solution

Info

Publication number
CA2193494A1
CA2193494A1 CA2193494A CA2193494A CA2193494A1 CA 2193494 A1 CA2193494 A1 CA 2193494A1 CA 2193494 A CA2193494 A CA 2193494A CA 2193494 A CA2193494 A CA 2193494A CA 2193494 A1 CA2193494 A1 CA 2193494A1
Authority
CA
Canada
Prior art keywords
pipe
sediment
cleaning
water distribution
scale
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
CA2193494A
Other languages
French (fr)
Other versions
CA2193494C (en
Inventor
Edward Charles Perry
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
Application filed by Individual filed Critical Individual
Publication of CA2193494A1 publication Critical patent/CA2193494A1/en
Application granted granted Critical
Publication of CA2193494C publication Critical patent/CA2193494C/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
    • 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
    • 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
    • C02F5/083—Mineral agents
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/042—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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2079—Monocarboxylic acids-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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/34—Organic compounds containing sulfur
    • C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
    • 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

Abstract

A method of cleaning and maintaining potable water distribution systems 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 heated 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).
CA002193494A 1994-06-20 1995-06-14 Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution Expired - Fee Related CA2193494C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26260194A 1994-06-20 1994-06-20
US262,601 1994-06-20
PCT/US1995/007546 WO1995035419A1 (en) 1994-06-20 1995-06-14 Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution

Publications (2)

Publication Number Publication Date
CA2193494A1 true CA2193494A1 (en) 1995-12-28
CA2193494C CA2193494C (en) 1999-12-07

Family

ID=22998225

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002193494A Expired - Fee Related CA2193494C (en) 1994-06-20 1995-06-14 Method of cleaning and maintaining potable water distribution pipe systems with a heated cleaning solution

Country Status (7)

Country Link
EP (1) EP0766765A1 (en)
AU (1) AU2828395A (en)
BR (1) BR9505483A (en)
CA (1) CA2193494C (en)
IL (1) IL114194A0 (en)
MY (1) MY115961A (en)
WO (1) WO1995035419A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705344B2 (en) 2001-03-27 2004-03-16 Blair J. Poirier Potable water circulation system
US6920897B2 (en) 2001-03-27 2005-07-26 Blair J. Poirier Potable water circulation system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008158C2 (en) * 1998-01-29 1999-08-02 Waste Treatment Patents & Res Removal of scale from concentric pipe reactors using nitric acid
CN114713577A (en) * 2022-04-25 2022-07-08 广东韶钢松山股份有限公司 Cleaning method of coal gas deamination equipment

Family Cites Families (15)

* 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
CH640434A5 (en) * 1981-01-27 1984-01-13 Dipan Sa Method for cleaning pipes and apparatus for carrying out this method
FR2517571A1 (en) * 1981-12-07 1983-06-10 Roussel Herve Mobile chemical descaling unit - with reservoir, pump and valve systems for open or closed circuit application
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
EP0183894B1 (en) * 1984-11-30 1991-07-24 Feldmann-Chemie GmbH Use of mixture of acids and/or acid salts for removing iron and manganese deposits and stains
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
DE4015202A1 (en) * 1990-05-11 1991-11-14 Heimo Wessollek CLEANER FOR DRINKING WATER SYSTEMS
DE4015201A1 (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
JP3597193B2 (en) * 1993-03-23 2004-12-02 エイチ．イー．アール．シー．プロダクツ インコーポレイテッド Methods for cleaning and maintaining drinking water piping systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705344B2 (en) 2001-03-27 2004-03-16 Blair J. Poirier Potable water circulation system
US6920897B2 (en) 2001-03-27 2005-07-26 Blair J. Poirier Potable water circulation system

Also Published As

Publication number Publication date
EP0766765A1 (en) 1997-04-09
BR9505483A (en) 1997-08-12
AU2828395A (en) 1996-01-15
MY115961A (en) 2003-10-31
CA2193494C (en) 1999-12-07
WO1995035419A1 (en) 1995-12-28
IL114194A0 (en) 1995-10-31

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