JPS5750596A - Activated sludge method - Google Patents

Activated sludge method

Info

Publication number
JPS5750596A
JPS5750596A JP55126500A JP12650080A JPS5750596A JP S5750596 A JPS5750596 A JP S5750596A JP 55126500 A JP55126500 A JP 55126500A JP 12650080 A JP12650080 A JP 12650080A JP S5750596 A JPS5750596 A JP S5750596A
Authority
JP
Japan
Prior art keywords
activated sludge
water
raw water
bubbles
pressure
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
JP55126500A
Other languages
Japanese (ja)
Inventor
Masakuni Kanai
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP55126500A priority Critical patent/JPS5750596A/en
Publication of JPS5750596A publication Critical patent/JPS5750596A/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 considerably reduce the activated sludge treatment time of waste water by producng bubbles over the entire area of a reaction vessel, allowing the same to cotact microbes or the like in activated sludge and performing flotation with a large number of microbubbles produced by decrease of pressure.
CONSTITUTION: Part of raw water which is water or liquid to be treated is dissolved and satd. with air under 1W5atm to create high pressure water, and activated sludge is contained alone or together with the raw water in a treating vessel separately roughly under atmospheric pressure. In the lower part of the above- described treating vessel, the above-described high pressure water is introduced into this vessel and further the activated sludge and the raw water are mixed by the bubbles produced by decrease of pressure, whereby the activated sludge treatment is executed. The formed solids are subjected to floatation by bubbles, whereby the raw water is purified. The above-described processes are carried out once or successively twice or more times, whereby the activated sludge treatment is carried out.
COPYRIGHT: (C)1982,JPO&Japio
JP55126500A 1980-09-11 1980-09-11 Activated sludge method Pending JPS5750596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55126500A JPS5750596A (en) 1980-09-11 1980-09-11 Activated sludge method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55126500A JPS5750596A (en) 1980-09-11 1980-09-11 Activated sludge method

Publications (1)

Publication Number Publication Date
JPS5750596A true JPS5750596A (en) 1982-03-25

Family

ID=14936736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55126500A Pending JPS5750596A (en) 1980-09-11 1980-09-11 Activated sludge method

Country Status (1)

Country Link
JP (1) JPS5750596A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62156075A (en) * 1985-12-28 1987-07-11 Nippon Doraibuitsuto Kk Automatic operating system capacitor discharge type stud welding device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53111657A (en) * 1977-03-09 1978-09-29 Hitachi Ltd Treatment of organic waste water

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53111657A (en) * 1977-03-09 1978-09-29 Hitachi Ltd Treatment of organic waste water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62156075A (en) * 1985-12-28 1987-07-11 Nippon Doraibuitsuto Kk Automatic operating system capacitor discharge type stud welding device

Similar Documents

Publication Publication Date Title
DE3360031D1 (en) Method and apparatus for the biological purification of waste waters containing phosphate
JPS54108461A (en) Method of denitrifying high concentration nitrogen contained waste water
JPS5750596A (en) Activated sludge method
JPS5684697A (en) Treatment of high concentration organic waste water
JPS571491A (en) Disposal of sewage
ES467000A1 (en) Treatment of waste water or waste water-containing liquid
JPS5727198A (en) Method for treatment of waste water
JPS5638190A (en) Treatment of night soil
JPS55129199A (en) Organic sanitary waste treating method by aeration in ultradeep tank
JPS54108458A (en) Method of decoloring and purifying night-soil
JPS5775194A (en) Treatment of organic waste
JPS5594685A (en) Method of decoloring and purifying excretion disposal water by ozone
JPS5742396A (en) Treatment of highly concentrated waste liquid
JPS57107286A (en) Method for treatment of water containing nektonic microbe by pressure flotation
JPS5715899A (en) Treatment of organic waste water
JPS5771699A (en) Treating method for organic waste liquid
JPS5648293A (en) Treatment of organic waste water
JPS6451191A (en) Treatment of waste water containing cyan
JPS57190698A (en) Methane fermenting method
JPS54125861A (en) Single tank nitration denitrification method of raw sewage system sewage
JPS56147696A (en) Treatment for organic waste water of high concentration
JPS6463091A (en) Method for removing water-bloom of service water in lake, pond or the like
JPS57147493A (en) Treatment of chemical cleaning waste liquid
JPS5527052A (en) Sludge floatation and concentration
JPS5753298A (en) Treatment of organic liquid waste