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

Similar Documents

Publication Publication Date Title
DE2032528A1 (en) Method and device for treating waste water
SK60597A3 (en) Wastewater treatment method and plant
US3724667A (en) Activated sludge process and system
JPS5520649A (en) Biological treatment method of waste water
EP1531123A3 (en) Method and installation for the treatment of soil water from ships
AU6218398A (en) Method for recuperating vent gas coming from an ozonization reactor
JPS56136699A (en) Treating method for organic waste liquid
JPS55149688A (en) Disposal plant for waste water
GB1348658A (en) Method of treating waste water
JPS571491A (en) Disposal of sewage
JPS54107153A (en) Biological waste water treatment
JPS58146495A (en) Treatment of organic waste liquid
JPH09174071A (en) Method for treating organic sewage and apparatus therefor
JPS5727198A (en) Method for treatment of waste water
JPS55167098A (en) Pretreatment of sludge
JPS55147193A (en) Treatment process for waste water containing thiosulfate
JPS55147191A (en) Treatment process for waste water
US3464918A (en) Method and apparatus for treating digestion tank super-natant liquor
JPS5524574A (en) Treating method in continuous type activated sludge system
JPS61174994A (en) Treatment of methane fermentation waste liquid
JPS5599393A (en) Method and apparatus for exhaust water treatment
JPS54125860A (en) Treating method of waste water that contain high cod and chromaticity
JPS5511035A (en) Activated sludge treatment method by introducing pressurized water
JPS558811A (en) Method and apparatus for waste water treatment with microorganism
JPS57110386A (en) Method and apparatus for treating sewage