JPS57132593A - Partial aeration method in sewage and night soil treatment - Google Patents

Partial aeration method in sewage and night soil treatment

Info

Publication number
JPS57132593A
JPS57132593A JP56018498A JP1849881A JPS57132593A JP S57132593 A JPS57132593 A JP S57132593A JP 56018498 A JP56018498 A JP 56018498A JP 1849881 A JP1849881 A JP 1849881A JP S57132593 A JPS57132593 A JP S57132593A
Authority
JP
Japan
Prior art keywords
chambers
segmented
aeration
tank
water
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
JP56018498A
Other languages
Japanese (ja)
Inventor
Hidetaka Ono
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP56018498A priority Critical patent/JPS57132593A/en
Publication of JPS57132593A publication Critical patent/JPS57132593A/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

Abstract

PURPOSE: To run activated sludge, etc. efficiently by segmenting the longitudinal direction of an aeration tank or nitrification tank properly, and providing measuring devices which detect dissolved oxygen (DO) concns. of the liquid in the chambers in the respective segmented chambers.
CONSTITUTION: Inflow water B flows together with return sludge 9 into an aeration tank 1, and after activated sludge treatment, the sludge is separated in a settling tank 2. The supernatant is discharged as outflow water 12. The aeration air is divided to a plurality, and after the flow rates are controlled with dampers 3, they are supplied into each of the segmented chambers 13 segmented by means of partition plates 15. Oxygen is dissolved in water through air diffusers 14. The sample liquid drawn from sampling pipes 7 is fed into a DO densitometer 5, by which the DO concns. in the chambers 13 are detected time dividedly. A controller 6 operates the openings of the dampers 3 in accordance with the detected DO concn. values, thereby controlling the flow rates of the aeration air 11 to the chambers 13.
COPYRIGHT: (C)1982,JPO&Japio
JP56018498A 1981-02-10 1981-02-10 Partial aeration method in sewage and night soil treatment Pending JPS57132593A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56018498A JPS57132593A (en) 1981-02-10 1981-02-10 Partial aeration method in sewage and night soil treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56018498A JPS57132593A (en) 1981-02-10 1981-02-10 Partial aeration method in sewage and night soil treatment

Publications (1)

Publication Number Publication Date
JPS57132593A true JPS57132593A (en) 1982-08-16

Family

ID=11973281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56018498A Pending JPS57132593A (en) 1981-02-10 1981-02-10 Partial aeration method in sewage and night soil treatment

Country Status (1)

Country Link
JP (1) JPS57132593A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6171895A (en) * 1984-09-13 1986-04-12 Toyota Motor Corp Controlling method of dissolved oxygen in aerat8ion tank
JPS6217396U (en) * 1985-07-13 1987-02-02
JP2002320989A (en) * 2001-04-25 2002-11-05 Mitsubishi Electric Corp Biological water treatment equipment
JP2011147858A (en) * 2010-01-20 2011-08-04 Hitachi Ltd Apparatus and method for treating sewage
CN109682729A (en) * 2019-01-31 2019-04-26 广西壮族自治区环境监测中心站 A kind of data collection system and method for Soil K+adsorption

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6171895A (en) * 1984-09-13 1986-04-12 Toyota Motor Corp Controlling method of dissolved oxygen in aerat8ion tank
JPS6217396U (en) * 1985-07-13 1987-02-02
JP2002320989A (en) * 2001-04-25 2002-11-05 Mitsubishi Electric Corp Biological water treatment equipment
JP4489990B2 (en) * 2001-04-25 2010-06-23 三菱電機株式会社 Biological water treatment equipment
JP2011147858A (en) * 2010-01-20 2011-08-04 Hitachi Ltd Apparatus and method for treating sewage
CN109682729A (en) * 2019-01-31 2019-04-26 广西壮族自治区环境监测中心站 A kind of data collection system and method for Soil K+adsorption

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