JPS56115688A - Sludge removal control system for settling basin - Google Patents

Sludge removal control system for settling basin

Info

Publication number
JPS56115688A
JPS56115688A JP1910280A JP1910280A JPS56115688A JP S56115688 A JPS56115688 A JP S56115688A JP 1910280 A JP1910280 A JP 1910280A JP 1910280 A JP1910280 A JP 1910280A JP S56115688 A JPS56115688 A JP S56115688A
Authority
JP
Japan
Prior art keywords
sludge
basin
valve
settled
settling 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.)
Pending
Application number
JP1910280A
Other languages
Japanese (ja)
Inventor
Mamoru Kobayashi
Kiichi Yamada
Masahiro Nishinomiya
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 JP1910280A priority Critical patent/JPS56115688A/en
Publication of JPS56115688A publication Critical patent/JPS56115688A/en
Pending 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 enable the sludge settled in a settling basin to be removed accurately by obtaining the opening-closing timings for a sludge removal valve from the amount of the sludge having settled in the settling basin.
CONSTITUTION: The flow rates of the feed water 1 flowing into a settling basin 4 and the treated water 9 flowing out from the basin 4 are measured on line with flow meters 2, 8, and further the respective turbidity thereof are measured with turbidimeters 3, 7. The respectively detected anaounts are converted to electric signals with converters 10W13 and these signals are inputted to a control device 15. Here, the differences between the inflow and outflow sludge flow rates of the basin 4 are obtained on line in consideration for the stangnation time of water in the basin, and these are integrated with an integrator, whereby the amount of the sludge having settled in the basin 4 is calculated. This and a preset removal sludge amount are compared, and if the former exceeds the latter, the opening command for a removal valve 5 is output to a driving device 14. The opening time of the valve 5 is obtained from the graph of the figure and the valve 5 is held open until the next close command is output.
COPYRIGHT: (C)1981,JPO&Japio
JP1910280A 1980-02-20 1980-02-20 Sludge removal control system for settling basin Pending JPS56115688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1910280A JPS56115688A (en) 1980-02-20 1980-02-20 Sludge removal control system for settling basin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1910280A JPS56115688A (en) 1980-02-20 1980-02-20 Sludge removal control system for settling basin

Publications (1)

Publication Number Publication Date
JPS56115688A true JPS56115688A (en) 1981-09-10

Family

ID=11990108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1910280A Pending JPS56115688A (en) 1980-02-20 1980-02-20 Sludge removal control system for settling basin

Country Status (1)

Country Link
JP (1) JPS56115688A (en)

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