JPS57122995A - Waste water treatment - Google Patents

Waste water treatment

Info

Publication number
JPS57122995A
JPS57122995A JP874681A JP874681A JPS57122995A JP S57122995 A JPS57122995 A JP S57122995A JP 874681 A JP874681 A JP 874681A JP 874681 A JP874681 A JP 874681A JP S57122995 A JPS57122995 A JP S57122995A
Authority
JP
Japan
Prior art keywords
tank
meter
pump
waste water
raw
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.)
Granted
Application number
JP874681A
Other languages
Japanese (ja)
Other versions
JPS608880B2 (en
Inventor
Chiaki Niwa
Teruyasu Hirayama
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.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu Construction 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 Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP56008746A priority Critical patent/JPS608880B2/en
Publication of JPS57122995A publication Critical patent/JPS57122995A/en
Publication of JPS608880B2 publication Critical patent/JPS608880B2/en
Expired 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)
  • Treatment Of Biological Wastes In General (AREA)

Abstract

PURPOSE: To contrive a total energy conservation by a method wherein excess air discharged from a raw-water tank or an aeration tank is used as diffusing air supplied at a lower part of a packing material in a contact oxidation tank, and a pH meter and a flow velocity meter are provided in the contact oxidation tank.
CONSTITUTION: The excess air discharged from either one or both of the raw- water tank 1 and the aeration tank 20 is fed through a pipe 50 into a diffusing part 51 provided below the packing material 41, forming air bubbles to supply oxygen to waste water 43 in the tank. As a result, the pH value, dissolved oxygen (DO) value and the like of the waste water 43 are varied, which variations are detected by the pH meter 52, a DO meter 53 and the flow velocity meter. Each of the meters feeds a detection signal to a control circuit 55, which sends a command to a pump 45 to change the revolution speed of a motor for the pump 45, thereby reducing the amount of power consumed by the pump 45.
COPYRIGHT: (C)1982,JPO&Japio
JP56008746A 1981-01-23 1981-01-23 Wastewater treatment method Expired JPS608880B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56008746A JPS608880B2 (en) 1981-01-23 1981-01-23 Wastewater treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56008746A JPS608880B2 (en) 1981-01-23 1981-01-23 Wastewater treatment method

Publications (2)

Publication Number Publication Date
JPS57122995A true JPS57122995A (en) 1982-07-31
JPS608880B2 JPS608880B2 (en) 1985-03-06

Family

ID=11701492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56008746A Expired JPS608880B2 (en) 1981-01-23 1981-01-23 Wastewater treatment method

Country Status (1)

Country Link
JP (1) JPS608880B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01249191A (en) * 1988-03-31 1989-10-04 Tokyu Constr Co Ltd Method and device for controlling air diffusion rate of variable volume bioreactor
JP2009028683A (en) * 2007-07-30 2009-02-12 Sanyo Electric Co Ltd Water treatment system
JP4851534B2 (en) * 2006-11-17 2012-01-11 パイオニア株式会社 Speaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01249191A (en) * 1988-03-31 1989-10-04 Tokyu Constr Co Ltd Method and device for controlling air diffusion rate of variable volume bioreactor
JP4851534B2 (en) * 2006-11-17 2012-01-11 パイオニア株式会社 Speaker
JP2009028683A (en) * 2007-07-30 2009-02-12 Sanyo Electric Co Ltd Water treatment system

Also Published As

Publication number Publication date
JPS608880B2 (en) 1985-03-06

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