JPS5719091A - Apparatus for disposal of water in active sludge process - Google Patents

Apparatus for disposal of water in active sludge process

Info

Publication number
JPS5719091A
JPS5719091A JP9273380A JP9273380A JPS5719091A JP S5719091 A JPS5719091 A JP S5719091A JP 9273380 A JP9273380 A JP 9273380A JP 9273380 A JP9273380 A JP 9273380A JP S5719091 A JPS5719091 A JP S5719091A
Authority
JP
Japan
Prior art keywords
sewage
sludge
awd
zones
vessel
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
JP9273380A
Other languages
Japanese (ja)
Other versions
JPS6320198B2 (en
Inventor
Yoshimasa Asada
Hitoshi Ogasawara
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 JP9273380A priority Critical patent/JPS5719091A/en
Publication of JPS5719091A publication Critical patent/JPS5719091A/en
Publication of JPS6320198B2 publication Critical patent/JPS6320198B2/ja
Granted 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 prevent the deterioration of processed water when a sewage inflow amount is small, by dividing an aeration vessel into a plurality of zones along the direction of sewage flow so that sewage can be introduced into each zone, and using the zones as sewage-reserving areas succssively from the uppermost one.
CONSTITUTION: An aeration vessel 3 is divided into four compartments, i.e. AWD zones, along the direction of sewage flow. A sewage influent is introduced through the inflow gate 10 to the compartment A, and successively flows downwards AWD zones. In each zone AWD, the sewage is aerated, and separated into sludge and processed water by precipitation in a final sedimentation pool 4. A sludge concentration in each zone AWD is measured by a sludge densitometer 17W20, respectively, and the measured value is compared with the objective sludge concentration by a control circuit 8. If the measured value is lower than the objective value, a pump 5 is driven to charge active sludge from the final sedimentation pool 4 into the vessel 3. On the contrary, if the measured value is higher than the objective value, the pump 5 is stopped to stop the inflow of the active sludge into the vessel 3.
COPYRIGHT: (C)1982,JPO&Japio
JP9273380A 1980-07-09 1980-07-09 Apparatus for disposal of water in active sludge process Granted JPS5719091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9273380A JPS5719091A (en) 1980-07-09 1980-07-09 Apparatus for disposal of water in active sludge process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9273380A JPS5719091A (en) 1980-07-09 1980-07-09 Apparatus for disposal of water in active sludge process

Publications (2)

Publication Number Publication Date
JPS5719091A true JPS5719091A (en) 1982-02-01
JPS6320198B2 JPS6320198B2 (en) 1988-04-26

Family

ID=14062613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9273380A Granted JPS5719091A (en) 1980-07-09 1980-07-09 Apparatus for disposal of water in active sludge process

Country Status (1)

Country Link
JP (1) JPS5719091A (en)

Also Published As

Publication number Publication date
JPS6320198B2 (en) 1988-04-26

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