JPS5456952A - Process for treatng ozone containined in circulating cooling water system - Google Patents

Process for treatng ozone containined in circulating cooling water system

Info

Publication number
JPS5456952A
JPS5456952A JP12297177A JP12297177A JPS5456952A JP S5456952 A JPS5456952 A JP S5456952A JP 12297177 A JP12297177 A JP 12297177A JP 12297177 A JP12297177 A JP 12297177A JP S5456952 A JPS5456952 A JP S5456952A
Authority
JP
Japan
Prior art keywords
ozone
pipeline
ions
cooling water
chrome
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
JP12297177A
Other languages
Japanese (ja)
Other versions
JPS6051400B2 (en
Inventor
Toshiaki Seki
Nobuyoshi Umiga
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12297177A priority Critical patent/JPS6051400B2/en
Publication of JPS5456952A publication Critical patent/JPS5456952A/en
Publication of JPS6051400B2 publication Critical patent/JPS6051400B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
    • C23F11/185—Refractory metal-containing compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

PURPOSE:To provide the aubject process comprising the steps of adjusting the pH of trivalent chrome ions and the like in high temperature cooling water, which have lost anti-corrosive properties, reproducing said ions and the like in hexavalent chrome by ozone oxidation, producing ozone dissolved water at a low temperature to carry out slime exfoliationg thereby to increas the circulation ratio of the cooling water system and reduce exhaust water. CONSTITUTION:Circulative water from a cooling water tank 7 is introduced through a valve 9, and a pipeline 10 into an ozone reaction absorption tower 2, and trivalent chrome ions and chrome hydride ions are reproduced into hexavalent chrome by ozone oxidation, and returned back to a cooling tower or a cooling water tank 7 through a pipeline 12, a valve 13 and a pipeline 17. Then, said ions are introduced through a pipeline 18 into a heat exchanging part 4. Simultaneously or alternately therewith, circulative water in which dissolved ozone has increased in the ozone reaction absorption tower 2 is sent through the pipeline 12 and the valve 13 to the heat exchanging part 4 where slime exfoliation is carried out by dissolved ozone. By this procedure, an anti-corrosive agent can be reproduced without taking out of the system, and hence the quantity of pouring chromate is reduced and the circulation ratio is improved.
JP12297177A 1977-10-15 1977-10-15 Ozone treatment method for circulating cooling water system Expired JPS6051400B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12297177A JPS6051400B2 (en) 1977-10-15 1977-10-15 Ozone treatment method for circulating cooling water system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12297177A JPS6051400B2 (en) 1977-10-15 1977-10-15 Ozone treatment method for circulating cooling water system

Publications (2)

Publication Number Publication Date
JPS5456952A true JPS5456952A (en) 1979-05-08
JPS6051400B2 JPS6051400B2 (en) 1985-11-13

Family

ID=14849115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12297177A Expired JPS6051400B2 (en) 1977-10-15 1977-10-15 Ozone treatment method for circulating cooling water system

Country Status (1)

Country Link
JP (1) JPS6051400B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624094A (en) * 1979-08-01 1981-03-07 Kubota Ltd Treatment of polluted water
EP0893412A3 (en) * 1997-07-24 1999-05-19 Mitsubishi Denki Kabushiki Kaisha Method and apparatus for preventing biofouling in cooling water system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624094A (en) * 1979-08-01 1981-03-07 Kubota Ltd Treatment of polluted water
EP0893412A3 (en) * 1997-07-24 1999-05-19 Mitsubishi Denki Kabushiki Kaisha Method and apparatus for preventing biofouling in cooling water system

Also Published As

Publication number Publication date
JPS6051400B2 (en) 1985-11-13

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