JPS5638183A - Control method for bulking in activated sludge treating process - Google Patents

Control method for bulking in activated sludge treating process

Info

Publication number
JPS5638183A
JPS5638183A JP11462479A JP11462479A JPS5638183A JP S5638183 A JPS5638183 A JP S5638183A JP 11462479 A JP11462479 A JP 11462479A JP 11462479 A JP11462479 A JP 11462479A JP S5638183 A JPS5638183 A JP S5638183A
Authority
JP
Japan
Prior art keywords
bulking
activated sludge
water
elements
treating
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
JP11462479A
Other languages
Japanese (ja)
Inventor
Susumu Hashimoto
Yoichi Hamamoto
Kazuhisa Kamo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP11462479A priority Critical patent/JPS5638183A/en
Publication of JPS5638183A publication Critical patent/JPS5638183A/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 generation of bulking and to prevent the deterioration of quality of treating water by imperfect solid-liquid separation, by adding one or more of Cu, Co and Zn to the water to be treated in the aeration vessel or flowing in the aeration vessel and treating it.
CONSTITUTION: Generation of bulking is controlled by adding one or more of Cu, Co and Zn to the water to be treated in the aeration vessel or flowing in the aeration vessel, at the time of treating the water to be treated by activated sludge method. Addition of said elements is not exerted influence upon the effect of the activated sludge treatment and also, is not contained in the treating water. After that, all added elements are adsorbed in the activated sludge. Accordingly, the bulking is previously prevented by adding immediately when a very small quantity of said elements is not detected or decreasing tendency is shown. Further, the bulking is rapidly restrained by adding said elements after SVI (sludge volume index) is increased.
COPYRIGHT: (C)1981,JPO&Japio
JP11462479A 1979-09-06 1979-09-06 Control method for bulking in activated sludge treating process Pending JPS5638183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11462479A JPS5638183A (en) 1979-09-06 1979-09-06 Control method for bulking in activated sludge treating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11462479A JPS5638183A (en) 1979-09-06 1979-09-06 Control method for bulking in activated sludge treating process

Publications (1)

Publication Number Publication Date
JPS5638183A true JPS5638183A (en) 1981-04-13

Family

ID=14642506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11462479A Pending JPS5638183A (en) 1979-09-06 1979-09-06 Control method for bulking in activated sludge treating process

Country Status (1)

Country Link
JP (1) JPS5638183A (en)

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