JPS5275857A - Control means for active mud treatment system - Google Patents

Control means for active mud treatment system

Info

Publication number
JPS5275857A
JPS5275857A JP50151781A JP15178175A JPS5275857A JP S5275857 A JPS5275857 A JP S5275857A JP 50151781 A JP50151781 A JP 50151781A JP 15178175 A JP15178175 A JP 15178175A JP S5275857 A JPS5275857 A JP S5275857A
Authority
JP
Japan
Prior art keywords
control means
treatment system
mud
mud treatment
active mud
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
JP50151781A
Other languages
Japanese (ja)
Inventor
Yoshiki Ikeda
Kazuo Tsutsui
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 JP50151781A priority Critical patent/JPS5275857A/en
Publication of JPS5275857A publication Critical patent/JPS5275857A/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 control the quantity of returned mud according to the percentage of mud storage in settling pool through detection of the final quantity of mud in the settling pool as the ratio between the difference between the quantities of mud flowing into and out of the settliing pool and the quantity of mud flowing into the settling pool.
COPYRIGHT: (C)1977,JPO&Japio
JP50151781A 1975-12-22 1975-12-22 Control means for active mud treatment system Pending JPS5275857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50151781A JPS5275857A (en) 1975-12-22 1975-12-22 Control means for active mud treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50151781A JPS5275857A (en) 1975-12-22 1975-12-22 Control means for active mud treatment system

Publications (1)

Publication Number Publication Date
JPS5275857A true JPS5275857A (en) 1977-06-25

Family

ID=15526149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50151781A Pending JPS5275857A (en) 1975-12-22 1975-12-22 Control means for active mud treatment system

Country Status (1)

Country Link
JP (1) JPS5275857A (en)

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