JPS5640407A - Prevention of floating of flocs in sedimentation basin - Google Patents

Prevention of floating of flocs in sedimentation basin

Info

Publication number
JPS5640407A
JPS5640407A JP11568579A JP11568579A JPS5640407A JP S5640407 A JPS5640407 A JP S5640407A JP 11568579 A JP11568579 A JP 11568579A JP 11568579 A JP11568579 A JP 11568579A JP S5640407 A JPS5640407 A JP S5640407A
Authority
JP
Japan
Prior art keywords
water
sedimentation basin
flocs
temperature
floating
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
JP11568579A
Other languages
Japanese (ja)
Inventor
Takatoshi Kato
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 JP11568579A priority Critical patent/JPS5640407A/en
Publication of JPS5640407A publication Critical patent/JPS5640407A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the floating of flocs in a sedimentation basin by a procedure in which the temperatures of sediment and water being introduced are detected to obtain the change in temperature difference between them, and when the value exceeds a specified value, formed flocs are drawn out.
CONSTITUTION: The water of the river 1 is taken from the intake gate 2, flowed into the well 3, and introduced with a flocculant from the chemical preparation apparatus 4 into the sedimentation basin 6 to sediment flocs present in the water to the bottom of the basin. The sedimentation basin 6 is provided with the temperature sensor 8 to detect the temperature TA of the water of the sedimentation basin, and also near the intake gate 2 for the river water 1 is provided with the temperature sensor 9 to detect the temperature TB of the water being taken. In the temperature difference arithmetic unit 10, the temperatures TA and TB are processed to output the temperature difference forecast alarm SA which is, in turn, put in the sludge discharge valve controller 11 for sedimentation basin and a command is given to the valve 7 before water whose temperature is different from that of the water of sedimentation basin comes in, and flocs are drawn out in advance.
COPYRIGHT: (C)1981,JPO&Japio
JP11568579A 1979-09-11 1979-09-11 Prevention of floating of flocs in sedimentation basin Pending JPS5640407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11568579A JPS5640407A (en) 1979-09-11 1979-09-11 Prevention of floating of flocs in sedimentation basin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11568579A JPS5640407A (en) 1979-09-11 1979-09-11 Prevention of floating of flocs in sedimentation basin

Publications (1)

Publication Number Publication Date
JPS5640407A true JPS5640407A (en) 1981-04-16

Family

ID=14668722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11568579A Pending JPS5640407A (en) 1979-09-11 1979-09-11 Prevention of floating of flocs in sedimentation basin

Country Status (1)

Country Link
JP (1) JPS5640407A (en)

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