JPS55155797A - Preventing method of n2o gas in biological denitrification treatment - Google Patents
Preventing method of n2o gas in biological denitrification treatmentInfo
- Publication number
- JPS55155797A JPS55155797A JP6422779A JP6422779A JPS55155797A JP S55155797 A JPS55155797 A JP S55155797A JP 6422779 A JP6422779 A JP 6422779A JP 6422779 A JP6422779 A JP 6422779A JP S55155797 A JPS55155797 A JP S55155797A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- scrubbing
- denitrifying
- vessel
- released
- 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 reduce N2O gas to N2 gas and prevent the release of N2O gas into the atmosphere by letting the N2O gas released to the vapor phase part of a denitrifying vessel be captured by hydrogen donator such as alcohol and supplying this donator to the denitrifying vessel.
CONSTITUTION: In case N2O gas is being byproduced in the exhaust gas G released into the vapor phase part of a denitrifying vessel 1, it is rleased into the methanol- containing waste water or methanol solution M in an exhaust gas scrubbing bottle 8 by way of an exhaust gas take-out port 7, exhaust gas lead-in part and glass filter 9, so that the N2O gas is captured in the solution M. The gas G' after the scrubbing is released into the vapor phase part of the scrubbing bottle 8 and the solution M after the scrubbing is supplied to the denitrifying vessel 1. During this time, the N2O gas is reduced to N2 gas. Part of the gas G' after the scrubbing is sampled and whether it has been reduced to N2 gas or not is checked.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6422779A JPS55155797A (en) | 1979-05-24 | 1979-05-24 | Preventing method of n2o gas in biological denitrification treatment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6422779A JPS55155797A (en) | 1979-05-24 | 1979-05-24 | Preventing method of n2o gas in biological denitrification treatment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55155797A true JPS55155797A (en) | 1980-12-04 |
JPS5652639B2 JPS5652639B2 (en) | 1981-12-14 |
Family
ID=13252003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6422779A Granted JPS55155797A (en) | 1979-05-24 | 1979-05-24 | Preventing method of n2o gas in biological denitrification treatment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55155797A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010094665A (en) * | 2008-09-19 | 2010-04-30 | Metawater Co Ltd | Method for controlling emission of nitrous oxide associated with treatment of nitrogen-containing wastewater |
JP2011110501A (en) * | 2009-11-27 | 2011-06-09 | Hitachi Ltd | Water treatment equipment |
JP2011147858A (en) * | 2010-01-20 | 2011-08-04 | Hitachi Ltd | Apparatus and method for treating sewage |
JP2011189261A (en) * | 2010-03-12 | 2011-09-29 | Mitsubishi Rayon Co Ltd | Biological treatment system, and biological treatment method |
CN108675449A (en) * | 2018-05-03 | 2018-10-19 | 南京大学 | A kind of device and method of processing ammonia nitrogen waste water |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61187632U (en) * | 1985-05-14 | 1986-11-22 | ||
JP7020258B2 (en) | 2018-04-06 | 2022-02-16 | 村田機械株式会社 | Position detection system and driving system |
-
1979
- 1979-05-24 JP JP6422779A patent/JPS55155797A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010094665A (en) * | 2008-09-19 | 2010-04-30 | Metawater Co Ltd | Method for controlling emission of nitrous oxide associated with treatment of nitrogen-containing wastewater |
JP2011110501A (en) * | 2009-11-27 | 2011-06-09 | Hitachi Ltd | Water treatment equipment |
JP2011147858A (en) * | 2010-01-20 | 2011-08-04 | Hitachi Ltd | Apparatus and method for treating sewage |
JP2011189261A (en) * | 2010-03-12 | 2011-09-29 | Mitsubishi Rayon Co Ltd | Biological treatment system, and biological treatment method |
CN108675449A (en) * | 2018-05-03 | 2018-10-19 | 南京大学 | A kind of device and method of processing ammonia nitrogen waste water |
CN108675449B (en) * | 2018-05-03 | 2021-02-23 | 南京大学 | Device and method for treating ammonia nitrogen wastewater |
Also Published As
Publication number | Publication date |
---|---|
JPS5652639B2 (en) | 1981-12-14 |
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