JPS6443392A - Sterilization control apparatus - Google Patents

Sterilization control apparatus

Info

Publication number
JPS6443392A
JPS6443392A JP19975587A JP19975587A JPS6443392A JP S6443392 A JPS6443392 A JP S6443392A JP 19975587 A JP19975587 A JP 19975587A JP 19975587 A JP19975587 A JP 19975587A JP S6443392 A JPS6443392 A JP S6443392A
Authority
JP
Japan
Prior art keywords
chlorine
water
raw water
basin
ammonia
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.)
Pending
Application number
JP19975587A
Other languages
Japanese (ja)
Inventor
Kenji Maejima
Yoshinari Fujita
Takashi Katori
Yoshiaki Ogawa
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.)
Hitachi Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
Hitachi 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 Hitachi Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP19975587A priority Critical patent/JPS6443392A/en
Publication of JPS6443392A publication Critical patent/JPS6443392A/en
Pending legal-status Critical Current

Links

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  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

PURPOSE:To supply sterilized water almost containing no free chlorine, by injecting ammonia and chlorine in the raw water of a water treatment plant to generate combined chlorine and controlling the injection rate of ammonia and chlorine. CONSTITUTION:The chlorine demand quantity and intake flow amount 5 of raw water are measured and the concn. of ammonia is measured by an ammonia meter 10. The raw water flowing in a water arrival basin 1 is guided to a quick mixing basin 2 and ammonium hydroxide is injected in the raw water on the way to be mixed with the raw water. Next, this raw water is guided to the quick mixing basin 2 to inject chlorine and a flocculant in said raw water. Chlorine is used in the sterilization of bacteria or the oxidation of a metal ion and the flocculant flocculates the turbid substance in the raw water into flocs which are, in turn, sedimented and removed in a sedimentation basin 3. The supernatant water becoming clear in the sedimentation basin 3 is guided to a water distribution basin 4 to be stored therein and, on the outlet side of the water distribution basin 4, residual chlorine is measured by a total residual chlorine meter 14 and a free residual chlorine meter 15 to distribute water to a user.
JP19975587A 1987-08-12 1987-08-12 Sterilization control apparatus Pending JPS6443392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19975587A JPS6443392A (en) 1987-08-12 1987-08-12 Sterilization control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19975587A JPS6443392A (en) 1987-08-12 1987-08-12 Sterilization control apparatus

Publications (1)

Publication Number Publication Date
JPS6443392A true JPS6443392A (en) 1989-02-15

Family

ID=16413087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19975587A Pending JPS6443392A (en) 1987-08-12 1987-08-12 Sterilization control apparatus

Country Status (1)

Country Link
JP (1) JPS6443392A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0871567A (en) * 1994-09-01 1996-03-19 Kobe Steel Ltd Movable water-purifying facility
WO2011065434A1 (en) * 2009-11-27 2011-06-03 鶴見曹達株式会社 Process for treatment of ship ballast water
JP2015202446A (en) * 2014-04-14 2015-11-16 株式会社日立製作所 Control system for injecting disinfectant in water service
JP2016043344A (en) * 2014-08-27 2016-04-04 株式会社日立製作所 Disinfection control system for clean water

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0871567A (en) * 1994-09-01 1996-03-19 Kobe Steel Ltd Movable water-purifying facility
WO2011065434A1 (en) * 2009-11-27 2011-06-03 鶴見曹達株式会社 Process for treatment of ship ballast water
JPWO2011065434A1 (en) * 2009-11-27 2013-04-18 鶴見曹達株式会社 Ship ballast water treatment method
JP2015202446A (en) * 2014-04-14 2015-11-16 株式会社日立製作所 Control system for injecting disinfectant in water service
JP2016043344A (en) * 2014-08-27 2016-04-04 株式会社日立製作所 Disinfection control system for clean water

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