JPS5697594A - Controller of apparatus for decontaminating filthy water containing activated sludge - Google Patents

Controller of apparatus for decontaminating filthy water containing activated sludge

Info

Publication number
JPS5697594A
JPS5697594A JP49280A JP49280A JPS5697594A JP S5697594 A JPS5697594 A JP S5697594A JP 49280 A JP49280 A JP 49280A JP 49280 A JP49280 A JP 49280A JP S5697594 A JPS5697594 A JP S5697594A
Authority
JP
Japan
Prior art keywords
meter
sludge
concentration
amount
returning
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
JP49280A
Other languages
Japanese (ja)
Inventor
Kazuo Shibazaki
Junji Hizuka
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 JP49280A priority Critical patent/JPS5697594A/en
Publication of JPS5697594A publication Critical patent/JPS5697594A/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

Abstract

PURPOSE: To obtain a treated water of excellent quality stably at a low cost, by controlling an aeration air flow amount and a returning sludge flow amount at proper levels.
CONSTITUTION: A dissolved oxygen (DO) concentration and an oxygen consuming speed (Rr) are measured by a meter 10 and a meter 11, respectively, arranged in an aeration vessel 2. The outputs from the meters 10 and 11 are fed to comparators 12 and 13, respectively. In each comparators 12, 13, the respective DO concentration or Rr is classified in several groups on the basis of preset values. The comparator 12 or 13 decides which group an output from the DO meter 10 or the Rr meter 11 belongs to. Outputs from the comparators 12, 13 are fed to an adjuster which memories plural calculation formulas for determining variations of an aeration air flow amount and a sludge returning amount on the basis of combination of the DO concentration and Rr classifications. The adjuster 14 is also fed with outputs from a flow meter 15 for measuring an aeration air amount, from a sludge concentration meter 17 and a flow meter 18 arranged in a sludge returning pipe 4. The aeration air flow amount and the returning sludge weight are controlled at proper levels by operations of control valves 16, 19. Thus, filthy water is decontaminated efficiently at a low cost.
COPYRIGHT: (C)1981,JPO&Japio
JP49280A 1980-01-09 1980-01-09 Controller of apparatus for decontaminating filthy water containing activated sludge Pending JPS5697594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP49280A JPS5697594A (en) 1980-01-09 1980-01-09 Controller of apparatus for decontaminating filthy water containing activated sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49280A JPS5697594A (en) 1980-01-09 1980-01-09 Controller of apparatus for decontaminating filthy water containing activated sludge

Publications (1)

Publication Number Publication Date
JPS5697594A true JPS5697594A (en) 1981-08-06

Family

ID=11475249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49280A Pending JPS5697594A (en) 1980-01-09 1980-01-09 Controller of apparatus for decontaminating filthy water containing activated sludge

Country Status (1)

Country Link
JP (1) JPS5697594A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009125638A (en) * 2007-11-21 2009-06-11 Panasonic Corp Wastewater treatment apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009125638A (en) * 2007-11-21 2009-06-11 Panasonic Corp Wastewater treatment apparatus

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