JPS56168886A - Biological treatment of waste water - Google Patents

Biological treatment of waste water

Info

Publication number
JPS56168886A
JPS56168886A JP7361780A JP7361780A JPS56168886A JP S56168886 A JPS56168886 A JP S56168886A JP 7361780 A JP7361780 A JP 7361780A JP 7361780 A JP7361780 A JP 7361780A JP S56168886 A JPS56168886 A JP S56168886A
Authority
JP
Japan
Prior art keywords
passage
waste water
microbes
fluid layers
flow
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
JP7361780A
Other languages
Japanese (ja)
Inventor
Muneharu Ichikawa
Kazuo Kimoto
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.)
Osaka Gas Co Ltd
Original Assignee
Osaka Gas 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 Osaka Gas Co Ltd filed Critical Osaka Gas Co Ltd
Priority to JP7361780A priority Critical patent/JPS56168886A/en
Publication of JPS56168886A publication Critical patent/JPS56168886A/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

  • Biological Treatment Of Waste Water (AREA)

Abstract

PURPOSE: To enhance oxygen utilization efficiently and strip fat microbes efficiently by forming the ascending flow and descending flow circulating in fluid layers, and providing the transition position from the ascending flow to the descending flow in the position lower than the top end of the fluid layers.
CONSTITUTION: A cylindrical partition wall 3 is provided in the central part of a waste water treating tank 1, and waste water 5 and high concd. oxygen are supplied into a descending flow passage 9. The fluid layers which are continuous to an ascending flow passage 11 from the passage 9 and consist of particles such as sand stuck with microbes are formed in the tank 1. The top end of the wall 3 is positioned lower than the interface 15 of the fluid layers and the solid-liquid separating zone 13 above these. While the waste water having absorbed oxygen in the passage 9 ascends in the passage 11, it gives BOD components to the microbe-stuck particles. The grown and slightly fat microbes are included in the descending flow, and the microbes are stripped by shearing forces until the thickness is reduced to ≤1mm in the passage 9.
COPYRIGHT: (C)1981,JPO&Japio
JP7361780A 1980-05-30 1980-05-30 Biological treatment of waste water Pending JPS56168886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7361780A JPS56168886A (en) 1980-05-30 1980-05-30 Biological treatment of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7361780A JPS56168886A (en) 1980-05-30 1980-05-30 Biological treatment of waste water

Publications (1)

Publication Number Publication Date
JPS56168886A true JPS56168886A (en) 1981-12-25

Family

ID=13523466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7361780A Pending JPS56168886A (en) 1980-05-30 1980-05-30 Biological treatment of waste water

Country Status (1)

Country Link
JP (1) JPS56168886A (en)

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