MY207513A - Water treatment agent - Google Patents

Water treatment agent

Info

Publication number
MY207513A
MY207513A MYPI2021002776A MYPI2021002776A MY207513A MY 207513 A MY207513 A MY 207513A MY PI2021002776 A MYPI2021002776 A MY PI2021002776A MY PI2021002776 A MYPI2021002776 A MY PI2021002776A MY 207513 A MY207513 A MY 207513A
Authority
MY
Malaysia
Prior art keywords
water treatment
treatment agent
polymer
bromide salt
chloramine compound
Prior art date
Application number
MYPI2021002776A
Inventor
Tadashi Nakano
Naohiro Nagai
Original Assignee
Kurita Water Ind 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
Priority claimed from JP2019007092A external-priority patent/JP6835106B2/en
Priority claimed from JP2019065290A external-priority patent/JP6787429B2/en
Application filed by Kurita Water Ind Ltd filed Critical Kurita Water Ind Ltd
Publication of MY207513A publication Critical patent/MY207513A/en

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
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • 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
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

To provide a water treatment agent which exhibits an effect of hypobromous acid well when added to a water system. A water treatment agent comprising the following components (a) to (c): (a) a chloramine compound, (b) a bromide salt, and (c) 1 to 18% by mass of a carboxyl group polymer having a carboxyl group content rate of 0.8 g- COOH/g-polymer or less in the polymer, and having a pH of 10 or more, and/or a water treatment agent comprising an alkali agent, a chloramine compound, and a bromide salt, and having a total chlorine detection rate after production of 95% or more and having a free chlorine content rate in a total chlorine concentration of 0.05% (as Cl2) or less. The molar ratio of the chloramine compound to the bromide salt is preferably 1:0.1 to 1.0. (No suitable Figure)
MYPI2021002776A 2019-01-18 2020-01-10 Water treatment agent MY207513A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019007092A JP6835106B2 (en) 2019-01-18 2019-01-18 Water treatment agent
JP2019065290A JP6787429B2 (en) 2019-03-29 2019-03-29 Water treatment agent
PCT/JP2020/000550 WO2020149217A1 (en) 2019-01-18 2020-01-10 Water treatment agent

Publications (1)

Publication Number Publication Date
MY207513A true MY207513A (en) 2025-03-01

Family

ID=71613903

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2021002776A MY207513A (en) 2019-01-18 2020-01-10 Water treatment agent

Country Status (6)

Country Link
KR (1) KR102874005B1 (en)
CN (1) CN112996756B (en)
MY (1) MY207513A (en)
SG (1) SG11202105553UA (en)
TW (1) TWI830855B (en)
WO (1) WO2020149217A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19837068A1 (en) * 1998-08-17 2000-02-24 Bayer Ag Water treatment composition, especially for use in cooling circuits, comprises polyaspartic acid, biocidal oxidizing agent and sulfamic acid stabilizer
KR20130029441A (en) 2009-08-19 2013-03-22 히타치가세이가부시끼가이샤 Polishing solution for cmp and polishing method
JP5665524B2 (en) * 2010-12-21 2015-02-04 伯東株式会社 Water treatment method for suppressing microbial damage in water
JP6649697B2 (en) 2015-05-12 2020-02-19 オルガノ株式会社 Water sterilization method
JP6691418B2 (en) * 2016-04-08 2020-04-28 アクアス株式会社 Microbial inhibitor composition and method for inhibiting microorganisms
JP2017214406A (en) * 2017-07-10 2017-12-07 オルガノ株式会社 Water treatment agent composition, method for producing water treatment agent composition, and water treatment method

Also Published As

Publication number Publication date
CN112996756B (en) 2023-12-08
TW202033458A (en) 2020-09-16
WO2020149217A1 (en) 2020-07-23
SG11202105553UA (en) 2021-06-29
KR102874005B1 (en) 2025-10-20
KR20210107627A (en) 2021-09-01
CN112996756A (en) 2021-06-18
TWI830855B (en) 2024-02-01

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