JPS55152598A - Method for removal of nitrogen compound from sewage - Google Patents

Method for removal of nitrogen compound from sewage

Info

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
Application number
JP6085079A
Other languages
Japanese (ja)
Inventor
Noboru Hayakawa
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.)
Nishihara Environment Co Ltd
Original Assignee
Nishihara Environmental Sanitation Research Corp
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 Nishihara Environmental Sanitation Research Corp filed Critical Nishihara Environmental Sanitation Research Corp
Priority to JP6085079A priority Critical patent/JPS55152598A/en
Publication of JPS55152598A publication Critical patent/JPS55152598A/en
Pending legal-status Critical Current

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  • 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
JP6085079A 1979-05-16 1979-05-16 Method for removal of nitrogen compound from sewage Pending JPS55152598A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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