JPS555729A - Treating method for organic waste liquor - Google Patents

Treating method for organic waste liquor

Info

Publication number
JPS555729A
JPS555729A JP7845078A JP7845078A JPS555729A JP S555729 A JPS555729 A JP S555729A JP 7845078 A JP7845078 A JP 7845078A JP 7845078 A JP7845078 A JP 7845078A JP S555729 A JPS555729 A JP S555729A
Authority
JP
Japan
Prior art keywords
section
sludge
aeration
organic waste
reaeration
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
JP7845078A
Other languages
Japanese (ja)
Inventor
Masami Kitagawa
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.)
Ebara Corp
Original Assignee
Ebara Infilco 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP7845078A priority Critical patent/JPS555729A/en
Publication of JPS555729A publication Critical patent/JPS555729A/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 control the bulking, by permitting the organic waste liquor to successively pass two or more stage aeration sections and the settling section, by reaerating the activated sludge, being settled in the settling section, in the reaeration section, after that, by fractionally returning the sludge to the former and the latter aeration sections, and furthermore, by specifying the BOD-MLSS load in the former aeration section.
CONSTITUTION: The organic waste liquor 1 is successively passed through the two or more stage aeration sections 2, 3, and the settling section 4; the activated sludge being settled in the settling section 4 is sent to the sludge reaeration section 6 through the returning pump 5 and the return path 8, and is reaerated by the air supplied from the blower 10. Next, a part of the sludge of the reaeration section 6 is sent through the returning pump 7 and the return path 9 to the former stage aeration section 2 which is operated with the BOD-MLSS load above 1.2kg/kg.day, and also, is conditioned to be the flock type bacteria multiplication section; and then, above sludge is treated by mixed aeration with the air supplied from the blower 10. Next, the mixed liquor is sent to the latter aeration section 3, and is mixed with the return sludge from the reaeratio section 6, and is aerated by the air supplied from the blower 10; hereby, the BOD component is completely removed.
COPYRIGHT: (C)1980,JPO&Japio
JP7845078A 1978-06-28 1978-06-28 Treating method for organic waste liquor Pending JPS555729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7845078A JPS555729A (en) 1978-06-28 1978-06-28 Treating method for organic waste liquor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7845078A JPS555729A (en) 1978-06-28 1978-06-28 Treating method for organic waste liquor

Publications (1)

Publication Number Publication Date
JPS555729A true JPS555729A (en) 1980-01-16

Family

ID=13662365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7845078A Pending JPS555729A (en) 1978-06-28 1978-06-28 Treating method for organic waste liquor

Country Status (1)

Country Link
JP (1) JPS555729A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5539260A (en) * 1978-09-12 1980-03-19 Kuraray Co Ltd Treating method for waste water with activated sludge
JP2006043586A (en) * 2004-08-04 2006-02-16 Kurita Water Ind Ltd Biological treatment accelerator for wastewater and biological treatment method of wastewater using it
JP2007061743A (en) * 2005-08-31 2007-03-15 Kurita Water Ind Ltd Method and apparatus for biologically treating organic waste water
JP2007326067A (en) * 2006-06-09 2007-12-20 Kurita Water Ind Ltd Biological treatment accelerator of wastewater and biological treatment method of wastewater using it
JP2010069482A (en) * 2009-11-26 2010-04-02 Kurita Water Ind Ltd Biological treatment method for organic waste water
JP5176542B2 (en) * 2005-04-12 2013-04-03 栗田工業株式会社 Biological treatment method and biological treatment apparatus for organic wastewater

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5539260A (en) * 1978-09-12 1980-03-19 Kuraray Co Ltd Treating method for waste water with activated sludge
JP2006043586A (en) * 2004-08-04 2006-02-16 Kurita Water Ind Ltd Biological treatment accelerator for wastewater and biological treatment method of wastewater using it
JP4655535B2 (en) * 2004-08-04 2011-03-23 栗田工業株式会社 Wastewater biological treatment method
JP5176542B2 (en) * 2005-04-12 2013-04-03 栗田工業株式会社 Biological treatment method and biological treatment apparatus for organic wastewater
JP2007061743A (en) * 2005-08-31 2007-03-15 Kurita Water Ind Ltd Method and apparatus for biologically treating organic waste water
JP2007326067A (en) * 2006-06-09 2007-12-20 Kurita Water Ind Ltd Biological treatment accelerator of wastewater and biological treatment method of wastewater using it
JP2010069482A (en) * 2009-11-26 2010-04-02 Kurita Water Ind Ltd Biological treatment method for organic waste water

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