JPS56136699A - Treating method for organic waste liquid - Google Patents

Treating method for organic waste liquid

Info

Publication number
JPS56136699A
JPS56136699A JP3826480A JP3826480A JPS56136699A JP S56136699 A JPS56136699 A JP S56136699A JP 3826480 A JP3826480 A JP 3826480A JP 3826480 A JP3826480 A JP 3826480A JP S56136699 A JPS56136699 A JP S56136699A
Authority
JP
Japan
Prior art keywords
waste liquid
preaerating
org
sludge
gas
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
JP3826480A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Honda
Yasuo Yoshinaga
Kazuo Yoshida
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 JP3826480A priority Critical patent/JPS56136699A/en
Publication of JPS56136699A publication Critical patent/JPS56136699A/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 prevent the generation of smell and improve the quality of treating water by limiting the amount of sludge returned to a preaerating tank, feeding an oxygen enriching gas and feeding the waste gas thereof into an aerating tank in subjecting org. waste liquid to aerobic treatment.
CONSTITUTION: Org. waste liquid 1 is successively passed through a preaerating part 3, a dilution control part 5 which dilutes the waste liquid by means of diluting water 4, an aerating part 6, and a settling part 7. The activated sludge settled and separated in the part 7 is returned via a return line 10 into the part 3 and the part 6, respectively, by using pumps 9. At this time, the amount of the sludge to be returned into the part 3 is kept at ≥10% of the supplied org. waste liquid 1. An oxygen enriching gas as an oxygen source necessary for aerobic oxidation is fed into the hermetic type preaerating part 3 through a supply pipe 2 so that the org. waste liquid and the return sludge are mixed and aerated. The waste gas of the part 3 is fed as an oxygen source for the hermetic type aerating part 6 through a communicating pipe 11, and the dilution-controlled preaerating part treating liquid is further mixed and aerated. The waste gas is released from a pipe 12.
COPYRIGHT: (C)1981,JPO&Japio
JP3826480A 1980-03-27 1980-03-27 Treating method for organic waste liquid Pending JPS56136699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3826480A JPS56136699A (en) 1980-03-27 1980-03-27 Treating method for organic waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3826480A JPS56136699A (en) 1980-03-27 1980-03-27 Treating method for organic waste liquid

Publications (1)

Publication Number Publication Date
JPS56136699A true JPS56136699A (en) 1981-10-26

Family

ID=12520458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3826480A Pending JPS56136699A (en) 1980-03-27 1980-03-27 Treating method for organic waste liquid

Country Status (1)

Country Link
JP (1) JPS56136699A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245294A (en) * 1989-03-20 1990-10-01 Kiyokusui Planning:Kk Method for eliminating malodor in waste water treatment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515865A (en) * 1974-07-03 1976-01-19 Daido Oxygen
JPS51125969A (en) * 1975-04-24 1976-11-02 Kurita Water Ind Ltd Active sludge process
JPS5226764A (en) * 1975-08-23 1977-02-28 Nippon Sharyo Seizo Kaisha Ltd Nightsoil treating apparatus
JPS5265975A (en) * 1975-11-28 1977-05-31 Seitetsu Kagaku Co Ltd Deoderization method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515865A (en) * 1974-07-03 1976-01-19 Daido Oxygen
JPS51125969A (en) * 1975-04-24 1976-11-02 Kurita Water Ind Ltd Active sludge process
JPS5226764A (en) * 1975-08-23 1977-02-28 Nippon Sharyo Seizo Kaisha Ltd Nightsoil treating apparatus
JPS5265975A (en) * 1975-11-28 1977-05-31 Seitetsu Kagaku Co Ltd Deoderization method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02245294A (en) * 1989-03-20 1990-10-01 Kiyokusui Planning:Kk Method for eliminating malodor in waste water treatment

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