DE69208314D1 - Verfahren und Vorrichtung zur Verbesserung des städtischen Wassers - Google Patents

Verfahren und Vorrichtung zur Verbesserung des städtischen Wassers

Info

Publication number
DE69208314D1
DE69208314D1 DE69208314T DE69208314T DE69208314D1 DE 69208314 D1 DE69208314 D1 DE 69208314D1 DE 69208314 T DE69208314 T DE 69208314T DE 69208314 T DE69208314 T DE 69208314T DE 69208314 D1 DE69208314 D1 DE 69208314D1
Authority
DE
Germany
Prior art keywords
urban water
improving urban
improving
water
urban
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 - Fee Related
Application number
DE69208314T
Other languages
English (en)
Other versions
DE69208314T2 (de
Inventor
Isao Funahashi
Kiwamu Yamamoto
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Publication of DE69208314D1 publication Critical patent/DE69208314D1/de
Application granted granted Critical
Publication of DE69208314T2 publication Critical patent/DE69208314T2/de
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
    • C02F5/02—Softening water by precipitation of the hardness
    • 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
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F15/00—Other methods of preventing corrosion or incrustation
    • 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
    • C02F2303/08—Corrosion inhibition
DE69208314T 1991-10-09 1992-09-17 Verfahren und Vorrichtung zur Verbesserung des städtischen Wassers Expired - Fee Related DE69208314T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03262271A JP3105309B2 (ja) 1991-10-09 1991-10-09 水道水の改善方法および装置

Publications (2)

Publication Number Publication Date
DE69208314D1 true DE69208314D1 (de) 1996-03-28
DE69208314T2 DE69208314T2 (de) 1996-07-11

Family

ID=17373477

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69208314T Expired - Fee Related DE69208314T2 (de) 1991-10-09 1992-09-17 Verfahren und Vorrichtung zur Verbesserung des städtischen Wassers

Country Status (6)

Country Link
US (2) US5391302A (de)
EP (1) EP0536908B1 (de)
JP (1) JP3105309B2 (de)
KR (1) KR950006682B1 (de)
DE (1) DE69208314T2 (de)
TW (1) TW218861B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3398806B2 (ja) * 1994-08-09 2003-04-21 呉羽化学工業株式会社 水道配管の腐食防止方法
DE4431911A1 (de) * 1994-09-08 1996-03-14 Passavant Werke Verfahren zum Aufbereiten von weichen Wässern zu Trinkwasser
JP3062036B2 (ja) * 1995-03-08 2000-07-10 呉羽化学工業株式会社 水道水改質用消石灰溶液の製造装置および方法
ES2126480B1 (es) * 1996-03-07 1999-12-01 Hernandez Collados Angela Procesos de descontaminacion de aguas residuales por accion de hidroxido calcico a concentraciones cercanas a la saturacion y posterior neutralizacion con dioxido de carbono.
US5720884A (en) * 1996-06-25 1998-02-24 Mg Industries Method for automatic control of corrosion in a water distribution system
US5914046A (en) * 1996-10-22 1999-06-22 The United States Of America As Represented By The Secretary Of The Interior Process and apparatus for carbon dioxide pretreatment and accelerated limestone dissolution for treatment of acidified water
FR2823499B1 (fr) * 2001-04-12 2004-02-27 Vivendi Water Systems Procede de remineralisation d'une eau brute
US7150829B2 (en) * 2003-08-28 2006-12-19 Pur Water Purification Products, Inc. Water treatment cartridges and processes related thereto
ES2259562B1 (es) * 2005-03-23 2008-03-01 Pridesa Proyectos Y Servicios, S.A.U. Sistema de preparacion y dosificacion en continuo de hidroxido calcico para sistemas de remineralizacion del agua aplicados a plantas desaladoras de agua.
KR100744742B1 (ko) * 2006-12-27 2007-08-01 한국수자원공사 고품질 수돗물 생산을 위한 소석회 포화수 연속제조 및주입장치
FI20085969L (fi) * 2008-10-15 2010-04-16 Kautar Oy Hapan vesi ja sen käyttö vedenpoistoon tai kiintoaineiden erottamiseen
US7771599B1 (en) * 2009-03-09 2010-08-10 Doosan Hydro Technology, Inc. System and method for using carbon dioxide sequestered from seawater in the remineralization of process water
JP2010137224A (ja) * 2010-02-12 2010-06-24 Kureha Engineering Co Ltd 浄水処理方法
PT2418177E (pt) 2010-08-13 2015-03-02 Omya Int Ag Sistema de injeção de uma suspensão de caco3 micronizado para a remineralização de água dessalinizada e doce
KR100990486B1 (ko) * 2010-08-18 2010-11-29 케이씨삼양정수(주) 담수의 음용수화 방법 및 장치
WO2012082139A1 (en) * 2010-12-17 2012-06-21 Burnett Lime Company, Inc. Method and apparatus for water treatment
US8951419B2 (en) * 2010-12-17 2015-02-10 Burnett Lime Company, Inc. Method and apparatus for water treatment
US20140014582A1 (en) * 2011-02-23 2014-01-16 Miguel Ramon Muro Fluid remineralization method
ES2584602T3 (es) * 2012-02-03 2016-09-28 Omya International Ag Procedimiento para la preparación de una disolución acuosa que comprende al menos un hidrogenocarbonato de metal alcalinotérreo y su uso

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1683521A (en) * 1926-05-10 1928-09-04 Bourgognion Julianus Wi Meuser Process of treating water
JPS5360879A (en) * 1976-11-12 1978-05-31 Hitachi Ltd Fixing method for calcium component contained in sea water
US4366142A (en) * 1979-03-28 1982-12-28 Sadao Kojima Method and apparatus for the preparation of slaked lime solution
JPS58223481A (ja) * 1982-06-21 1983-12-26 Kureha Chem Ind Co Ltd 水道水のｐＨ調整方法
JPS6223634A (ja) * 1985-07-24 1987-01-31 Nec Home Electronics Ltd スペクトラム拡散電力線搬送通信方法および装置
JPS62229494A (ja) * 1986-03-31 1987-10-08 東芝テック株式会社 商品販売デ−タ処理装置
FR2616451B1 (fr) * 1987-06-12 1989-10-13 Legrand Luc Procede et installation pour proteger les canalisations d'eau contre la corrosion
JPH0632820B2 (ja) * 1989-01-24 1994-05-02 呉羽化学工業株式会社 水道水のランゲリア指数の改善方法および装置

Also Published As

Publication number Publication date
US5391302A (en) 1995-02-21
JP3105309B2 (ja) 2000-10-30
US5525224A (en) 1996-06-11
EP0536908A1 (de) 1993-04-14
KR930007824A (ko) 1993-05-20
TW218861B (de) 1994-01-11
KR950006682B1 (ko) 1995-06-21
DE69208314T2 (de) 1996-07-11
EP0536908B1 (de) 1996-02-14
JPH0596286A (ja) 1993-04-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee