JPS55114393A - Improvement in activated sludge method - Google Patents

Improvement in activated sludge method

Info

Publication number
JPS55114393A
JPS55114393A JP2073679A JP2073679A JPS55114393A JP S55114393 A JPS55114393 A JP S55114393A JP 2073679 A JP2073679 A JP 2073679A JP 2073679 A JP2073679 A JP 2073679A JP S55114393 A JPS55114393 A JP S55114393A
Authority
JP
Japan
Prior art keywords
sludge
tank
oxygen
reaeration
sedimentation tank
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
JP2073679A
Other languages
Japanese (ja)
Inventor
Kazuo Yoshida
Kouichi Takekura
Yasuo Yoshinaga
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Priority to JP2073679A priority Critical patent/JPS55114393A/en
Publication of JPS55114393A publication Critical patent/JPS55114393A/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)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

PURPOSE: To raise greatly the treatment performance of the existing polluted water treatment apparatus with lesser floor space and lesser amounts of improvement cost by the interposition of reaeration on the path through which sludge is returned.
CONSTITUTION: In a polluted water treatment apparatus consisting of the aeration tank 1 and the final sedimentation tank 2 and using an activated sludge method, the oxygen-reaeration tank 3 is provided on the paths 8 and 9 through which concentrated sludge is returned from the sedimentation tank 2 to the aeration tank 1, where a vapor-liquid mixing is made by the supply of a gas containing 50(vol)% or more oxygen for 10W180min and then the sludge is circulated to the aeration tank 1. Thus, because the sludge under a weakly an aerobic condition in the sedimentation tank 2 is sufficiently aerated under a high DO condition in the oxygen-reaeration tank with a gas having a high oxygen partial pressure, the activity of the sludge can be restored completely.
COPYRIGHT: (C)1980,JPO&Japio
JP2073679A 1979-02-26 1979-02-26 Improvement in activated sludge method Pending JPS55114393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2073679A JPS55114393A (en) 1979-02-26 1979-02-26 Improvement in activated sludge method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2073679A JPS55114393A (en) 1979-02-26 1979-02-26 Improvement in activated sludge method

Publications (1)

Publication Number Publication Date
JPS55114393A true JPS55114393A (en) 1980-09-03

Family

ID=12035472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2073679A Pending JPS55114393A (en) 1979-02-26 1979-02-26 Improvement in activated sludge method

Country Status (1)

Country Link
JP (1) JPS55114393A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63319099A (en) * 1987-06-19 1988-12-27 Osaka Gas Co Ltd Treatment of waste water by aeration with high concentration oxygen
JPH0463198A (en) * 1990-06-28 1992-02-28 Nippon Kentetsu Co Ltd Activated sludge treating equipment
CN106186518A (en) * 2016-07-21 2016-12-07 苏州苏沃特环境科技有限公司 A kind of BCAS system processing difficult degradation and brine waste

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63319099A (en) * 1987-06-19 1988-12-27 Osaka Gas Co Ltd Treatment of waste water by aeration with high concentration oxygen
JPH0463198A (en) * 1990-06-28 1992-02-28 Nippon Kentetsu Co Ltd Activated sludge treating equipment
CN106186518A (en) * 2016-07-21 2016-12-07 苏州苏沃特环境科技有限公司 A kind of BCAS system processing difficult degradation and brine waste

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