JPS55102495A - Excess sluge drawing control in sewage treatment plant - Google Patents

Excess sluge drawing control in sewage treatment plant

Info

Publication number
JPS55102495A
JPS55102495A JP912679A JP912679A JPS55102495A JP S55102495 A JPS55102495 A JP S55102495A JP 912679 A JP912679 A JP 912679A JP 912679 A JP912679 A JP 912679A JP S55102495 A JPS55102495 A JP S55102495A
Authority
JP
Japan
Prior art keywords
sludge
excess
excess sludge
pit
sedimentation basin
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
JP912679A
Other languages
Japanese (ja)
Other versions
JPS588314B2 (en
Inventor
Ritsuta Ono
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 JP54009126A priority Critical patent/JPS588314B2/en
Publication of JPS55102495A publication Critical patent/JPS55102495A/en
Publication of JPS588314B2 publication Critical patent/JPS588314B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Activated Sludge Processes (AREA)

Abstract

PURPOSE: To raise the efficiency of polluted water treatment by automatically controlling the amount of excess sludge to be drawn out by monitoring only two items, the sludge interface level of final sedimentation basin and the sludge concentration of sludge pit.
CONSTITUTION: In a sewage treatment plant, the sludge interface level meter 31 for the final sedimentation basin 2 and the sludge densitometer 32 for measuring the sludge concentration of the sludge pit 3 are provided. And, the signals of the excess sludge flow meter 30, the level meter 31, the densitometer 32, and the state of the excess sludge drawing pumps P1, P2,...Pn(failure or others) are put in the arithemetic control unit through the signal lines 40, 42, 43, and 44. Then, from the input values, the sludge interface level in the sedimentation basin 2 and the daily average value of sludge concentration of the pit 3 are obtained, and from the daily average value and the excess sludge drawn actual value of that day, the excess sludge drawing amount target value for the next day is determined and an operation-start/stop signal is delivered to the pumps P1WPn through the line 44 so as to draw out excess sludge by dividing into the preset time.
COPYRIGHT: (C)1980,JPO&Japio
JP54009126A 1979-01-31 1979-01-31 Excess sludge extraction control system for sewage treatment plants Expired JPS588314B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54009126A JPS588314B2 (en) 1979-01-31 1979-01-31 Excess sludge extraction control system for sewage treatment plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54009126A JPS588314B2 (en) 1979-01-31 1979-01-31 Excess sludge extraction control system for sewage treatment plants

Publications (2)

Publication Number Publication Date
JPS55102495A true JPS55102495A (en) 1980-08-05
JPS588314B2 JPS588314B2 (en) 1983-02-15

Family

ID=11711932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54009126A Expired JPS588314B2 (en) 1979-01-31 1979-01-31 Excess sludge extraction control system for sewage treatment plants

Country Status (1)

Country Link
JP (1) JPS588314B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0524279Y2 (en) * 1989-11-13 1993-06-21

Also Published As

Publication number Publication date
JPS588314B2 (en) 1983-02-15

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