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JPS56133095A - Decomposition of mold in activated sludge - Google Patents

Decomposition of mold in activated sludge

Info

Publication number
JPS56133095A
JPS56133095A JP3587080A JP3587080A JPS56133095A JP S56133095 A JPS56133095 A JP S56133095A JP 3587080 A JP3587080 A JP 3587080A JP 3587080 A JP3587080 A JP 3587080A JP S56133095 A JPS56133095 A JP S56133095A
Authority
JP
Japan
Prior art keywords
activated sludge
iron
mold
acid salt
inorganic acid
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
JP3587080A
Other languages
Japanese (ja)
Inventor
Teizo Ohama
Takashi Hironaka
Teiji Ueno
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP3587080A priority Critical patent/JPS56133095A/en
Publication of JPS56133095A publication Critical patent/JPS56133095A/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 obtain a sludge having good precipitating property by quickly decomposing mold present in activated sludge by the addition of an inorganic acid salt of iron to the activated sludge.
CONSTITUTION: In the treatment of organic waste water by an activated sludge method, an inorganic acid salt of iron is added, in case where mold grows abnormally, to activated sludge mixture in a proportion of 100W1,000ppm in an aeration tank. The inorganic acid salt of iron to add includes ferrous sulfate, ferrous nitrate, ferric sulfate, ferric chloride, etc. Also, if the amount of the inorganic acid salt of iron to add it too small, the mold could not be sufficiently decomposed, but if it is too mush, solids could not be separated favorably in the precipitation tank.
COPYRIGHT: (C)1981,JPO&Japio
JP3587080A 1980-03-21 1980-03-21 Decomposition of mold in activated sludge Pending JPS56133095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3587080A JPS56133095A (en) 1980-03-21 1980-03-21 Decomposition of mold in activated sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3587080A JPS56133095A (en) 1980-03-21 1980-03-21 Decomposition of mold in activated sludge

Publications (1)

Publication Number Publication Date
JPS56133095A true JPS56133095A (en) 1981-10-17

Family

ID=12454021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3587080A Pending JPS56133095A (en) 1980-03-21 1980-03-21 Decomposition of mold in activated sludge

Country Status (1)

Country Link
JP (1) JPS56133095A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6161695A (en) * 1984-08-30 1986-03-29 Fuji Oil Co Ltd Activated sludge treatment
CN102502950A (en) * 2011-11-02 2012-06-20 青岛理工大学 Method for improving activity of nitrification function microorganisms in activated sludge by directly adding Fe ions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6161695A (en) * 1984-08-30 1986-03-29 Fuji Oil Co Ltd Activated sludge treatment
JPS6351074B2 (en) * 1984-08-30 1988-10-12 Fuji Oil Co Ltd
CN102502950A (en) * 2011-11-02 2012-06-20 青岛理工大学 Method for improving activity of nitrification function microorganisms in activated sludge by directly adding Fe ions

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