JPS5588898A - Water treating method - Google Patents
Water treating methodInfo
- 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
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
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)
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)
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 |
-
1978
- 1978-12-27 JP JP16281878A patent/JPS5588898A/en active Granted
Patent Citations (1)
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)
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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