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JPS55155797A - Preventing method of n2o gas in biological denitrification treatment - Google Patents

Preventing method of n2o gas in biological denitrification treatment

Info

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
Application number
JP6422779A
Other languages
Japanese (ja)
Other versions
JPS5652639B2 (en
Inventor
Eiichi Mikami
Yoshimasa Takahara
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP6422779A priority Critical patent/JPS55155797A/en
Publication of JPS55155797A publication Critical patent/JPS55155797A/en
Publication of JPS5652639B2 publication Critical patent/JPS5652639B2/ja
Granted legal-status Critical Current

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
JP6422779A 1979-05-24 1979-05-24 Preventing method of n2o gas in biological denitrification treatment Granted JPS55155797A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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 A device and method for treating ammonia nitrogen wastewater

Also Published As

Publication number Publication date
JPS5652639B2 (en) 1981-12-14

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