JPS5588898A - Water treating method - Google Patents

Water treating method

Info

Publication number
JPS5588898A
JPS5588898A JP16281878A JP16281878A JPS5588898A JP S5588898 A JPS5588898 A JP S5588898A JP 16281878 A JP16281878 A JP 16281878A JP 16281878 A JP16281878 A JP 16281878A JP S5588898 A JPS5588898 A JP S5588898A
Authority
JP
Japan
Prior art keywords
water
vessel
denitrification
contg
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.)
Granted
Application number
JP16281878A
Other languages
Japanese (ja)
Other versions
JPS6322878B2 (en
Inventor
Yasuo Horii
Susumu Takahashi
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP16281878A priority Critical patent/JPS5588898A/en
Publication of JPS5588898A publication Critical patent/JPS5588898A/en
Publication of JPS6322878B2 publication Critical patent/JPS6322878B2/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

  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To efficiently denitrify intrified water contg. activated sludge at an increased denitrification rate by denitrifying the water while agitating with gas of high CO2 concn. to control shift of the water to the alkali side.
CONSTITUTION: N-contg. water to be treated is fed 3 to divided vessel 1a of catalytic nitrification vessel 1 and aerated by supplying 5a O2-contg. gas. The aerated water is sent to divided vessel 1b to nitrify the dissolved N with intrate-forming bacteria, etc. in activated sludge under aerobic conditions. The nitrified water is fed to denitrification vessel 8 together with the sludge and agitated by blowing 12 gas T of high CO2 concn. through aerator 11. At this time, an org. C source such as methanol necessary to facultative anaerobic denitrification bacteria is supplied into vessel 8 beforehand. The nitrified water is biochemically reduced in vessel 8 to gasification-remove the N contained. The CO2 blown maintains the pH of the water optimum and facilitates activation of the denitrification bacteria.
COPYRIGHT: (C)1980,JPO&Japio
JP16281878A 1978-12-27 1978-12-27 Water treating method Granted JPS5588898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16281878A JPS5588898A (en) 1978-12-27 1978-12-27 Water treating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16281878A JPS5588898A (en) 1978-12-27 1978-12-27 Water treating method

Publications (2)

Publication Number Publication Date
JPS5588898A true JPS5588898A (en) 1980-07-04
JPS6322878B2 JPS6322878B2 (en) 1988-05-13

Family

ID=15761805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16281878A Granted JPS5588898A (en) 1978-12-27 1978-12-27 Water treating method

Country Status (1)

Country Link
JP (1) JPS5588898A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5784793A (en) * 1980-11-14 1982-05-27 Ebara Infilco Co Ltd Denitrification of organic waste water
JPS5784792A (en) * 1980-11-14 1982-05-27 Ebara Infilco Co Ltd Denitrification of organic waste water

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546351A (en) * 1977-06-15 1979-01-18 Chiyoda Chem Eng & Constr Co Ltd Denitration treating method of waste water

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS546351A (en) * 1977-06-15 1979-01-18 Chiyoda Chem Eng & Constr Co Ltd Denitration treating method of waste water

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5784793A (en) * 1980-11-14 1982-05-27 Ebara Infilco Co Ltd Denitrification of organic waste water
JPS5784792A (en) * 1980-11-14 1982-05-27 Ebara Infilco Co Ltd Denitrification of organic waste water
JPH0123195B2 (en) * 1980-11-14 1989-05-01 Ebara Infilco
JPH0123196B2 (en) * 1980-11-14 1989-05-01 Ebara Infilco

Also Published As

Publication number Publication date
JPS6322878B2 (en) 1988-05-13

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