JPS55152598A - Method for removal of nitrogen compound from sewage - Google Patents
Method for removal of nitrogen compound from sewageInfo
- Publication number
- JPS55152598A JPS55152598A JP6085079A JP6085079A JPS55152598A JP S55152598 A JPS55152598 A JP S55152598A JP 6085079 A JP6085079 A JP 6085079A JP 6085079 A JP6085079 A JP 6085079A JP S55152598 A JPS55152598 A JP S55152598A
- Authority
- JP
- Japan
- Prior art keywords
- sewage
- tank
- nitrogen
- guided
- ammonia
- 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
Links
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To effectively remove organic substances and nitrogen cpd. by a method wherein hydrogen donor (organic carbon source) present in the sewage is utilized so that a single denitrification process is combined with nitrification and ammonia removal processes.
CONSTITUTION: The sewage (a) to be treated is guided together with sewage from a nitrogen-oxidizing tank 3 into a denitrification tank 1, where nitrate nitrogen and BOD are removed from the sewage. Part of the sewage from the tank 1 is adjusted to pH 8W11 by adding alkaline agent such as Ca(OH)2 and is guided into ammonia removing tank 2. In the tank 2, stripping is conducted by blowing oxygen into the sewage, and gas accompaning ammonia is introduced into the nitrogen-oxdizing tank 3. Meanwhile, part of the sewage from the tank 1 is guided into the tank 3, where the sewage is treated and returned to the tank 1. In this manner, the nitric acid is prevented from outgoing from the system without the use of plural denitrification tanks.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6085079A JPS55152598A (en) | 1979-05-16 | 1979-05-16 | Method for removal of nitrogen compound from sewage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6085079A JPS55152598A (en) | 1979-05-16 | 1979-05-16 | Method for removal of nitrogen compound from sewage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55152598A true JPS55152598A (en) | 1980-11-27 |
Family
ID=13154257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6085079A Pending JPS55152598A (en) | 1979-05-16 | 1979-05-16 | Method for removal of nitrogen compound from sewage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55152598A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007117842A (en) * | 2005-10-26 | 2007-05-17 | Ebara Corp | Method and apparatus for removing nitrogen of high concentration organic waste water |
-
1979
- 1979-05-16 JP JP6085079A patent/JPS55152598A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007117842A (en) * | 2005-10-26 | 2007-05-17 | Ebara Corp | Method and apparatus for removing nitrogen of high concentration organic waste water |
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