DE69000266D1 - Verfahren und vorrichtung zur verbesserung des langelier-index von staedtischem wasser. - Google Patents

Verfahren und vorrichtung zur verbesserung des langelier-index von staedtischem wasser.

Info

Publication number
DE69000266D1
DE69000266D1 DE9090300698T DE69000266T DE69000266D1 DE 69000266 D1 DE69000266 D1 DE 69000266D1 DE 9090300698 T DE9090300698 T DE 9090300698T DE 69000266 T DE69000266 T DE 69000266T DE 69000266 D1 DE69000266 D1 DE 69000266D1
Authority
DE
Germany
Prior art keywords
improving
urban water
langelier index
langelier
index
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 - Lifetime
Application number
DE9090300698T
Other languages
English (en)
Other versions
DE69000266T2 (de
Inventor
Isao Funahashi
Kiwamu Yamamoto
Shinichi Kuboki
Masahiro Hiruta
Hideo Abe
Moritoshi Ono
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
Kureha Engineering Co Ltd
Original Assignee
Kureha Corp
Kureha Engineering Co Ltd
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, Kureha Engineering Co Ltd filed Critical Kureha Corp
Publication of DE69000266D1 publication Critical patent/DE69000266D1/de
Application granted granted Critical
Publication of DE69000266T2 publication Critical patent/DE69000266T2/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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • 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
    • C02F2303/00—Specific treatment goals
    • C02F2303/08—Corrosion inhibition
DE9090300698T 1989-01-24 1990-01-23 Verfahren und vorrichtung zur verbesserung des langelier-index von staedtischem wasser. Expired - Fee Related DE69000266T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1014662A JPH0632820B2 (ja) 1989-01-24 1989-01-24 水道水のランゲリア指数の改善方法および装置

Publications (2)

Publication Number Publication Date
DE69000266D1 true DE69000266D1 (de) 1992-10-01
DE69000266T2 DE69000266T2 (de) 1993-02-04

Family

ID=11867428

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9090300698T Expired - Fee Related DE69000266T2 (de) 1989-01-24 1990-01-23 Verfahren und vorrichtung zur verbesserung des langelier-index von staedtischem wasser.

Country Status (4)

Country Link
EP (1) EP0380299B1 (de)
JP (1) JPH0632820B2 (de)
KR (1) KR920002811B1 (de)
DE (1) DE69000266T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3105309B2 (ja) * 1991-10-09 2000-10-30 呉羽化学工業株式会社 水道水の改善方法および装置
FR2697827B1 (fr) * 1992-11-10 1995-02-03 Dominique Mercier Procédé et dispositifs de détartrage et de protection contre l'entartrage des structures en contact avec de l'eau entartrante.
JPH08989B2 (ja) * 1993-07-28 1996-01-10 郁男 稲船 防錆水の水質遠隔監視制御装置
DE4431911A1 (de) * 1994-09-08 1996-03-14 Passavant Werke Verfahren zum Aufbereiten von weichen Wässern zu Trinkwasser
NL1021495C2 (nl) 2002-09-19 2004-03-22 Hoek Loos Bv Koelsysteem en werkwijze voor gebruik daarvan.
KR100695671B1 (ko) * 2006-04-13 2007-03-19 (주)블루오션월드 해양 심층수를 이용한 탄산수소칼슘수의 제조방법
KR100853382B1 (ko) * 2006-07-28 2008-08-25 재단법인 한국계면공학연구소 소석회슬러리를 이용한 상수도관의 부식방지 방법
DE102007035253A1 (de) * 2007-07-27 2009-01-29 Anton Hausberger Vorrichtung zum Dispergieren eines Feststoffs in Abwasser
JP2010137224A (ja) * 2010-02-12 2010-06-24 Kureha Engineering Co Ltd 浄水処理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332617B2 (de) * 1974-03-06 1978-09-09
JPS5360879A (en) * 1976-11-12 1978-05-31 Hitachi Ltd Fixing method for calcium component contained in sea water
JPH0247552B2 (ja) * 1982-08-19 1990-10-22 Matsushita Electric Ind Co Ltd Hooroobutsupinoyobisonoseizohoho
JPS6034791A (ja) * 1983-08-04 1985-02-22 Ebara Infilco Co Ltd 水質改善方法
FR2616451B1 (fr) * 1987-06-12 1989-10-13 Legrand Luc Procede et installation pour proteger les canalisations d'eau contre la corrosion

Also Published As

Publication number Publication date
JPH02194893A (ja) 1990-08-01
EP0380299B1 (de) 1992-08-26
KR900011671A (ko) 1990-08-01
DE69000266T2 (de) 1993-02-04
JPH0632820B2 (ja) 1994-05-02
EP0380299A1 (de) 1990-08-01
KR920002811B1 (ko) 1992-04-04

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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