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JPS5539260A - Treating method for waste water with activated sludge - Google Patents

Treating method for waste water with activated sludge

Info

Publication number
JPS5539260A
JPS5539260A JP11267278A JP11267278A JPS5539260A JP S5539260 A JPS5539260 A JP S5539260A JP 11267278 A JP11267278 A JP 11267278A JP 11267278 A JP11267278 A JP 11267278A JP S5539260 A JPS5539260 A JP S5539260A
Authority
JP
Japan
Prior art keywords
vessel
flow rate
raw water
waste water
aeration
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
JP11267278A
Other languages
Japanese (ja)
Inventor
Shigeru Komatsu
Kazuji Fukunaga
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.)
Kuraray Co Ltd
Original Assignee
Kuraray 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP11267278A priority Critical patent/JPS5539260A/en
Publication of JPS5539260A publication Critical patent/JPS5539260A/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 considerably reduce the cost of equimpment for treating waste water by setting an aerator in a raw water vessel besides an aeration vessel and by charging part of activated sludge into the raw water vessel to allot a portion of the function of the aeration vessel to the raw water vessel.
CONSTITUTION: A change in flow rate of waste water is absorbed in raw water vessel 1, and the flow rate is made uniform. At the same time, part of activated sludge is charged into vessel 1 from settling vessel 3 through pump 22, box 23, regulation valve 26, flow rate regulation meter 28, etc., and it is aerated through blower 8 and aeration pipe 9. Thus, a portion of the function of aeration vessel 2 is allotted to vessel 1. Since the amt. of the sludge charged into vessel 1 is controlled with flow rate measuring device 27, meter 28, ratio controller 29, etc. correspondingly to raw water flow rate measuring device 7, the sludge concn. is held constant independently of the water level of vessel 1 to purify the waste water. As a result, the load of vessel 2 is relieved considerably, and the vol. thereof is reduced remarkably.
COPYRIGHT: (C)1980,JPO&Japio
JP11267278A 1978-09-12 1978-09-12 Treating method for waste water with activated sludge Pending JPS5539260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11267278A JPS5539260A (en) 1978-09-12 1978-09-12 Treating method for waste water with activated sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11267278A JPS5539260A (en) 1978-09-12 1978-09-12 Treating method for waste water with activated sludge

Publications (1)

Publication Number Publication Date
JPS5539260A true JPS5539260A (en) 1980-03-19

Family

ID=14592584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11267278A Pending JPS5539260A (en) 1978-09-12 1978-09-12 Treating method for waste water with activated sludge

Country Status (1)

Country Link
JP (1) JPS5539260A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60251992A (en) * 1984-05-28 1985-12-12 Shimizu Constr Co Ltd Treatment of waste water
JPS60251991A (en) * 1984-05-28 1985-12-12 Shimizu Constr Co Ltd Treatment of waste water
WO1998003434A1 (en) * 1996-07-19 1998-01-29 Mitsubishi Chemical Corporation Device for controlling dissolved oxygen concentration of aeration tank, device for controlling temperature of aeration tank, device for controlling flow rate of raw water for homogeneous-flow liquid surface, and wastewater treatment equipment used in activated sludge process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431966A (en) * 1977-08-17 1979-03-09 Showa Denko Kk Processing method of active sludge
JPS555729A (en) * 1978-06-28 1980-01-16 Ebara Infilco Co Ltd Treating method for organic waste liquor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5431966A (en) * 1977-08-17 1979-03-09 Showa Denko Kk Processing method of active sludge
JPS555729A (en) * 1978-06-28 1980-01-16 Ebara Infilco Co Ltd Treating method for organic waste liquor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60251992A (en) * 1984-05-28 1985-12-12 Shimizu Constr Co Ltd Treatment of waste water
JPS60251991A (en) * 1984-05-28 1985-12-12 Shimizu Constr Co Ltd Treatment of waste water
JPH0417715B2 (en) * 1984-05-28 1992-03-26 Shimizu Construction Co Ltd
JPH0417714B2 (en) * 1984-05-28 1992-03-26 Shimizu Construction Co Ltd
WO1998003434A1 (en) * 1996-07-19 1998-01-29 Mitsubishi Chemical Corporation Device for controlling dissolved oxygen concentration of aeration tank, device for controlling temperature of aeration tank, device for controlling flow rate of raw water for homogeneous-flow liquid surface, and wastewater treatment equipment used in activated sludge process

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