JPS55137088A - Controlling method of chlorine pouring in water purifying field - Google Patents

Controlling method of chlorine pouring in water purifying field

Info

Publication number
JPS55137088A
JPS55137088A JP4541179A JP4541179A JPS55137088A JP S55137088 A JPS55137088 A JP S55137088A JP 4541179 A JP4541179 A JP 4541179A JP 4541179 A JP4541179 A JP 4541179A JP S55137088 A JPS55137088 A JP S55137088A
Authority
JP
Japan
Prior art keywords
chlorine
pouring
value
raw water
concn
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
JP4541179A
Other languages
Japanese (ja)
Inventor
Tetsuro Haga
Tomonori Kaneko
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 Ltd
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP4541179A priority Critical patent/JPS55137088A/en
Publication of JPS55137088A publication Critical patent/JPS55137088A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

PURPOSE: To maintain the residual chlorine concn. to an objective value corresponding to the variation of raw water quality by a method wherein, by the different value of a residual chlorine concn. after chlorine is poured and a chlorine pouring value, the above described chlorine pouring value is rectified.
CONSTITUTION: The chlorine is poured into a raw water of a water introducing well 1 in a pouring point 10 and the said raw water is treated by passing the said raw water through a chemicals mixing place 2, a flack forming place 4 or the like. In a water purifying method by a chlorine pre-pouring treatment method, a chlorine concn. meter 9 is used between a pouring point 10 and a mixing place 2 to measure the residual chlorine concn. of a raw water and the pouring value of chlorine is rectified by this value. That is, in an operator 12, the defferent value between the residual chlorine concn. RCL1 and the corresponding chlorine pouring value DCL2, that is, the chlorine requiring value RCL2 of a raw water is calculated and this value is applied to an operator 13. Subsequently, in an operator 13, a preliminarily set standard chlorine pouring value DCL0 and the above described PCL2 are added to obtain a corrected chlorine pouring value DCL1 and, subsequently, this value is converted to a chlorine pouring amount FDCL1 by a multiplier 14 to control a chlorine pouring instrument 6 through a control flowmeter 16 and a predetermined amount of chlorine is supplied from a chlorine pouring point 10.
COPYRIGHT: (C)1980,JPO&Japio
JP4541179A 1979-04-16 1979-04-16 Controlling method of chlorine pouring in water purifying field Pending JPS55137088A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4541179A JPS55137088A (en) 1979-04-16 1979-04-16 Controlling method of chlorine pouring in water purifying field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4541179A JPS55137088A (en) 1979-04-16 1979-04-16 Controlling method of chlorine pouring in water purifying field

Publications (1)

Publication Number Publication Date
JPS55137088A true JPS55137088A (en) 1980-10-25

Family

ID=12718509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4541179A Pending JPS55137088A (en) 1979-04-16 1979-04-16 Controlling method of chlorine pouring in water purifying field

Country Status (1)

Country Link
JP (1) JPS55137088A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04177411A (en) * 1990-11-08 1992-06-24 Toshiba Corp Chemicals injection controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04177411A (en) * 1990-11-08 1992-06-24 Toshiba Corp Chemicals injection controller

Similar Documents

Publication Publication Date Title
JPS55137088A (en) Controlling method of chlorine pouring in water purifying field
ES468419A1 (en) Process for treating liquid steel intended in particular for manufacturing machine wire
JPS6434411A (en) Controlling device for injection amount of flocculant in purification plant
JP2836838B2 (en) Control method of adding amount of oxidizing agent or reducing agent
JPS5493848A (en) Control system for controlling coagulant supplying rate in water cleaning process
JPS57144084A (en) Control method for chlorine injection in water purifying plant
JPS56121687A (en) Water quality controlling device in water treatment equipment
JPS5676292A (en) Method and apparatus for treating muddy water
JPS55106587A (en) Controlling and pouring method of coagulant into water purification plant
JPS5653795A (en) Controlling method for quantity of organic carbon source to be poured in biological denitriding
Hubbs et al. Trihalomethane reduction at the Louisville Water Company
JPS60161707A (en) Flocculant injection control of water purification plant
JPS55127193A (en) Controlling method of returned sludge
JPS55155789A (en) Dephosphorizing method of waste water containing phosphorus
JPS55129197A (en) Sewage treating apparatus
JPS5288520A (en) Treatment of waste generated in manufacturing alloy steel
JPS55152510A (en) Controller for extracting sludge at sedimentation basin
JPS5549196A (en) Control method for excess sludge extraction
JPS5393653A (en) Apparatus for controlling quantity of chemicals used in treatment of filthy mud
JPS571409A (en) Controller for addition of chemical in water clarification plant
JPS56126500A (en) Flocculating method of water treatment sludge
JPS5556895A (en) Predictive controlling method for concentration of mixed liquor suspended solid in active sludge method
JPS55137097A (en) Controlling apparatus for air sending quantity of aerating tank
JPS54116962A (en) Meter
JPS6064747A (en) Treatment of molding sand