JPS55129199A - Organic sanitary waste treating method by aeration in ultradeep tank - Google Patents

Organic sanitary waste treating method by aeration in ultradeep tank

Info

Publication number
JPS55129199A
JPS55129199A JP3598379A JP3598379A JPS55129199A JP S55129199 A JPS55129199 A JP S55129199A JP 3598379 A JP3598379 A JP 3598379A JP 3598379 A JP3598379 A JP 3598379A JP S55129199 A JPS55129199 A JP S55129199A
Authority
JP
Japan
Prior art keywords
contg
region
activated sludge
oxygen
water
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.)
Granted
Application number
JP3598379A
Other languages
Japanese (ja)
Other versions
JPS6218232B2 (en
Inventor
Chiaki Niwa
Ryuzo Tazawa
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.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu Construction 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 Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP3598379A priority Critical patent/JPS55129199A/en
Publication of JPS55129199A publication Critical patent/JPS55129199A/en
Publication of JPS6218232B2 publication Critical patent/JPS6218232B2/ja
Granted 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

  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To lower the circulating flow rate of sanitary waste and save energy by feeding water contg. nitrite or nitrate nitrogen and activated sludge into a downward region and introducing oxygen-contg. gas into an upward region.
CONSTITUTION: Org. sanitary waste C, water E contg. nitrite or nitrate nitrogen and activated sludge F contg. facultative anaerobic denitrification bacteria are fed into downward flow region B. On the other hand, oxygen-contg. water and/or oxygen-contg. gas is introduced into upward flow region A through lines G, K with compressor 2 or ejector 7. Thus, a circulating flow is formed between regions A, B, and part of the resulting treated mixed liquor is introduced from line D into activated sludge separating and degassing vessel 6, where the activated sludge is separated, and the liquor is degassed to obtain treated water. By this method the circulating flow rate of waste C can be lowered to save energy as compared to a conventional method, and BOD removal and denitrification can be accomplished simultaneously without spearetely feeding oxygen into region B.
COPYRIGHT: (C)1980,JPO&Japio
JP3598379A 1979-03-27 1979-03-27 Organic sanitary waste treating method by aeration in ultradeep tank Granted JPS55129199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3598379A JPS55129199A (en) 1979-03-27 1979-03-27 Organic sanitary waste treating method by aeration in ultradeep tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3598379A JPS55129199A (en) 1979-03-27 1979-03-27 Organic sanitary waste treating method by aeration in ultradeep tank

Publications (2)

Publication Number Publication Date
JPS55129199A true JPS55129199A (en) 1980-10-06
JPS6218232B2 JPS6218232B2 (en) 1987-04-22

Family

ID=12457104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3598379A Granted JPS55129199A (en) 1979-03-27 1979-03-27 Organic sanitary waste treating method by aeration in ultradeep tank

Country Status (1)

Country Link
JP (1) JPS55129199A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62286599A (en) * 1986-06-05 1987-12-12 Osaka Gas Co Ltd Treatment of waste water with activated sludge
JP2000024687A (en) * 1998-05-08 2000-01-25 Kankyo Eng Co Ltd Treatment of waste nitric acid

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63215444A (en) * 1987-03-03 1988-09-07 Mazda Motor Corp Roof carrier installation structure for automobile
JPS63215445A (en) * 1987-03-03 1988-09-07 Mazda Motor Corp Roof carrier installation structure for automobile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239958A (en) * 1975-09-25 1977-03-28 Chiyoda Chem Eng & Constr Co Ltd Circulating aeration method using elongated vertical bath
JPS5239959A (en) * 1975-09-25 1977-03-28 Chiyoda Chem Eng & Constr Co Ltd Aerating method using elongated vertical bath equipped with inner tube

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239958A (en) * 1975-09-25 1977-03-28 Chiyoda Chem Eng & Constr Co Ltd Circulating aeration method using elongated vertical bath
JPS5239959A (en) * 1975-09-25 1977-03-28 Chiyoda Chem Eng & Constr Co Ltd Aerating method using elongated vertical bath equipped with inner tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62286599A (en) * 1986-06-05 1987-12-12 Osaka Gas Co Ltd Treatment of waste water with activated sludge
JP2000024687A (en) * 1998-05-08 2000-01-25 Kankyo Eng Co Ltd Treatment of waste nitric acid

Also Published As

Publication number Publication date
JPS6218232B2 (en) 1987-04-22

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