JPS6470198A - Nitrogen removal treatment of waste water - Google Patents
Nitrogen removal treatment of waste waterInfo
- Publication number
- JPS6470198A JPS6470198A JP22726487A JP22726487A JPS6470198A JP S6470198 A JPS6470198 A JP S6470198A JP 22726487 A JP22726487 A JP 22726487A JP 22726487 A JP22726487 A JP 22726487A JP S6470198 A JPS6470198 A JP S6470198A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- org
- oxidation
- change rate
- denitrification
- 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
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE:To efficiently nitrify or denitrify org. waste water and to remove nitrogen with high efficiency by controlling nitrification and denitrification in accordance with the change rate of the oxidation-reduction potential in the waste water. CONSTITUTION:An oxidation-reduction electrometer 16 is provided in a tank 10. The change rate of the oxidation-reduction potential per unit time of the org. waste water is detected by this electrometer 16. The progressing condition of the nitrification and denitrification in the tank 10 is recognized in accordance with this detected change rate and the supply of the oxygen from an aeration line 18 and the supply of the org. waste water from an introducing line 12 are adjusted. As a result, the aerobic state and anaerobic state are rapidly controlled and the nitrogen is removed with high efficiency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22726487A JPH0757356B2 (en) | 1987-09-10 | 1987-09-10 | Wastewater nitrogen removal treatment method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22726487A JPH0757356B2 (en) | 1987-09-10 | 1987-09-10 | Wastewater nitrogen removal treatment method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6470198A true JPS6470198A (en) | 1989-03-15 |
JPH0757356B2 JPH0757356B2 (en) | 1995-06-21 |
Family
ID=16858096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22726487A Expired - Lifetime JPH0757356B2 (en) | 1987-09-10 | 1987-09-10 | Wastewater nitrogen removal treatment method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0757356B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5304308A (en) * | 1992-06-08 | 1994-04-19 | Fuji Electric Co., Ltd. | Control method in double-tank-type intermittent aeration activated sludge process |
JP2013043100A (en) * | 2011-08-22 | 2013-03-04 | Hitachi Ltd | Water treating process controller |
US20150048026A1 (en) * | 2010-10-04 | 2015-02-19 | Enviromix, Llc | Systems and methods for automated control of mixing aeration in treatment processes |
US9416037B2 (en) | 2009-10-12 | 2016-08-16 | EnviroMix, Inc. | Mixing systems and methods of mixing |
US11603326B2 (en) | 2017-09-29 | 2023-03-14 | EnviroMix, Inc. | Systems and methods for treatment processes |
-
1987
- 1987-09-10 JP JP22726487A patent/JPH0757356B2/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5304308A (en) * | 1992-06-08 | 1994-04-19 | Fuji Electric Co., Ltd. | Control method in double-tank-type intermittent aeration activated sludge process |
US9416037B2 (en) | 2009-10-12 | 2016-08-16 | EnviroMix, Inc. | Mixing systems and methods of mixing |
US10752532B2 (en) | 2009-10-12 | 2020-08-25 | EnviroMix, Inc. | Mixing systems and methods of mixing |
US11332398B2 (en) | 2009-10-12 | 2022-05-17 | EnviroMix, Inc. | Mixing systems and methods of mixing |
US20150048026A1 (en) * | 2010-10-04 | 2015-02-19 | Enviromix, Llc | Systems and methods for automated control of mixing aeration in treatment processes |
US9567245B2 (en) * | 2010-10-04 | 2017-02-14 | EnviroMix, Inc. | Systems and methods for automated control of mixing aeration in treatment processes |
US11390544B2 (en) | 2010-10-04 | 2022-07-19 | EnviroMix, Inc. | Systems and methods for automated control of mixing and aeration in treatment processes |
JP2013043100A (en) * | 2011-08-22 | 2013-03-04 | Hitachi Ltd | Water treating process controller |
US11603326B2 (en) | 2017-09-29 | 2023-03-14 | EnviroMix, Inc. | Systems and methods for treatment processes |
Also Published As
Publication number | Publication date |
---|---|
JPH0757356B2 (en) | 1995-06-21 |
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