JPS57110400A - Chemical injection controller - Google Patents
Chemical injection controllerInfo
- Publication number
- JPS57110400A JPS57110400A JP55189196A JP18919680A JPS57110400A JP S57110400 A JPS57110400 A JP S57110400A JP 55189196 A JP55189196 A JP 55189196A JP 18919680 A JP18919680 A JP 18919680A JP S57110400 A JPS57110400 A JP S57110400A
- Authority
- JP
- Japan
- Prior art keywords
- flocculant
- weight
- sludge
- calculator
- added
- 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
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To dehydrate efficiently and with a constant stability by providing a comparing calculator for comparing a calculated value of the weight of an adsorptive flocculant per unit weight of a sludge with a target value, and an adjuster for adjusting the amount of the flocculant being added.
CONSTITUTION: A concentrated sludge is introduced into a flocculant mixing tank 2 through a water pipe 1, is mixed with a high polymer flocculant added through a flocculant injection pipe 3, then it is fed to a dehydrator 5 by a water pipe 4 and is separated into a filtrate and a dehydrated cake. In the calculator 12, the weight of the flocculant adsorbed onto the sludge is calculated from the difference between the weight of the added sludge measured by a measuring means 13 and the weight of the residual sludge measured by a measuring means 14. In additon, the target value of the weight of the adsorptive flocculant per unit weight of the sludge is inputted into the calculator 12 and is compared to the calculated value, and an instruction to cope with the difference between the calculated value and the target value is outputted to the adjustor 15.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55189196A JPS57110400A (en) | 1980-12-27 | 1980-12-27 | Chemical injection controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55189196A JPS57110400A (en) | 1980-12-27 | 1980-12-27 | Chemical injection controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57110400A true JPS57110400A (en) | 1982-07-09 |
Family
ID=16237122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55189196A Pending JPS57110400A (en) | 1980-12-27 | 1980-12-27 | Chemical injection controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57110400A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT514909B1 (en) * | 2013-10-03 | 2018-08-15 | Andritz Ag Maschf | Sludge dewatering method and apparatus therefor |
-
1980
- 1980-12-27 JP JP55189196A patent/JPS57110400A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT514909B1 (en) * | 2013-10-03 | 2018-08-15 | Andritz Ag Maschf | Sludge dewatering method and apparatus therefor |
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