JPS5738910A - Settling tank equipped with preventing device for sludge buoying - Google Patents

Settling tank equipped with preventing device for sludge buoying

Info

Publication number
JPS5738910A
JPS5738910A JP11342780A JP11342780A JPS5738910A JP S5738910 A JPS5738910 A JP S5738910A JP 11342780 A JP11342780 A JP 11342780A JP 11342780 A JP11342780 A JP 11342780A JP S5738910 A JPS5738910 A JP S5738910A
Authority
JP
Japan
Prior art keywords
sludge
settling tank
tank
buoying
preventing device
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
JP11342780A
Other languages
Japanese (ja)
Inventor
Masatake Ishimine
Sokichi Aizawa
Koki Mizuno
Masahiro Sekiguchi
Hiroshi Otsuka
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.)
KYOWA KAKOU KK
Kyowa Kako Co Ltd
Original Assignee
KYOWA KAKOU KK
Kyowa Kako 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 KYOWA KAKOU KK, Kyowa Kako Co Ltd filed Critical KYOWA KAKOU KK
Priority to JP11342780A priority Critical patent/JPS5738910A/en
Publication of JPS5738910A publication Critical patent/JPS5738910A/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 prevent sludge from floating up on the water surface, by constantly cutting the sludge in a settling tank of the activated sludge process to deaerate small air bubbles generated in the sludge.
CONSTITUTION: Sludge contained in a settling tank 7 is cut into small pieces by rotating thin wires 6 attached between an upper arm 6, a lower arm 4, a supporting frame 5 and a rotating hollow shaft 2. With this equipment, small air bubbles contained in the sludge is deaerated, so that the sludge floating on the water surface and suspending in the middle of the tank are forced to settle to the bottom of the tank.
COPYRIGHT: (C)1982,JPO&Japio
JP11342780A 1980-08-20 1980-08-20 Settling tank equipped with preventing device for sludge buoying Pending JPS5738910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11342780A JPS5738910A (en) 1980-08-20 1980-08-20 Settling tank equipped with preventing device for sludge buoying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11342780A JPS5738910A (en) 1980-08-20 1980-08-20 Settling tank equipped with preventing device for sludge buoying

Publications (1)

Publication Number Publication Date
JPS5738910A true JPS5738910A (en) 1982-03-03

Family

ID=14611953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11342780A Pending JPS5738910A (en) 1980-08-20 1980-08-20 Settling tank equipped with preventing device for sludge buoying

Country Status (1)

Country Link
JP (1) JPS5738910A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6268593A (en) * 1985-09-19 1987-03-28 Takenaka Komuten Co Ltd Ultra-submerged aeration type sewage treatment apparatus
JPH02126999A (en) * 1988-11-07 1990-05-15 Nishihara Environ Sanit Res Corp Filamentous bacteria bulking treating apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6268593A (en) * 1985-09-19 1987-03-28 Takenaka Komuten Co Ltd Ultra-submerged aeration type sewage treatment apparatus
JPH02126999A (en) * 1988-11-07 1990-05-15 Nishihara Environ Sanit Res Corp Filamentous bacteria bulking treating apparatus
JPH0561995B2 (en) * 1988-11-07 1993-09-07 Nishihara Env San Res Co Ltd

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