JPS5738991A - Method for high-degree denitrification of organic waste water containing nitrogen - Google Patents

Method for high-degree denitrification of organic waste water containing nitrogen

Info

Publication number
JPS5738991A
JPS5738991A JP11342680A JP11342680A JPS5738991A JP S5738991 A JPS5738991 A JP S5738991A JP 11342680 A JP11342680 A JP 11342680A JP 11342680 A JP11342680 A JP 11342680A JP S5738991 A JPS5738991 A JP S5738991A
Authority
JP
Japan
Prior art keywords
tank
denitrification
nitrifying
nitrogen
waste water
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
JP11342680A
Other languages
Japanese (ja)
Other versions
JPS5811278B2 (en
Inventor
Koki Mizuno
Sokichi Aizawa
Masatake Ishimine
Masahiro Sekiguchi
Hiroshi Otsuka
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.)
KYOWA KAKOU KK
Kyowa Kako Co Ltd
Original Assignee
KYOWA KAKOU KK
Kyowa Kako Co Ltd
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 KYOWA KAKOU KK, Kyowa Kako Co Ltd filed Critical KYOWA KAKOU KK
Priority to JP55113426A priority Critical patent/JPS5811278B2/en
Publication of JPS5738991A publication Critical patent/JPS5738991A/en
Publication of JPS5811278B2 publication Critical patent/JPS5811278B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Biological Treatment Of Waste Water (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To improve the settling and separating efficiency for sludge and the oxidation removal effect of methanol by injecting the supernatant separated from solids in a settling tank provided with a nitrifying sludge floating preventive mechanism provided between the primary denitrification and the secondary denitrification to a fixed bed type denitrifying tower.
CONSTITUTION: Org. waste water 1 contg. nitrogen flows into a bioflating type denitrifying tank 2; at the same time, the circulating liquid from a biofloating type nitrifying tank 3 and the return sludge from a settling tank 4 with a nitrifying sludge floating preventive mechanism 13 flow into the above-mentioned tank 2. In the tank 2, denitrification is effected by facultative anaerobes such as pseudomonas germs, thence it shifts into the tank 3, where it is areated by a fan 17 and org. nitrogen converts to ammoniacal nitrogen. The waste water is separated to solids and liquid in the tank 4. The outflow supernatant is flowed in upward current into a fixed bed type denitrifying tower 6, and methanol is injected from the mid-part of an injection port 15 to remove the remaining nitrifying nitrogen, after which the remaining methanol is removed by oxidation in a fixed bed type oxidation tank 7.
COPYRIGHT: (C)1982,JPO&Japio
JP55113426A 1980-08-20 1980-08-20 Advanced denitrification method for nitrogen-containing organic wastewater Expired JPS5811278B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55113426A JPS5811278B2 (en) 1980-08-20 1980-08-20 Advanced denitrification method for nitrogen-containing organic wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55113426A JPS5811278B2 (en) 1980-08-20 1980-08-20 Advanced denitrification method for nitrogen-containing organic wastewater

Publications (2)

Publication Number Publication Date
JPS5738991A true JPS5738991A (en) 1982-03-03
JPS5811278B2 JPS5811278B2 (en) 1983-03-02

Family

ID=14611927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55113426A Expired JPS5811278B2 (en) 1980-08-20 1980-08-20 Advanced denitrification method for nitrogen-containing organic wastewater

Country Status (1)

Country Link
JP (1) JPS5811278B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102285717A (en) * 2011-03-21 2011-12-21 哈尔滨工业大学 Sewage denitrification method for quickly realizing synchronous short-cut nitrification-denitrification

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5321863A (en) * 1976-08-13 1978-02-28 Dainippon Plastics Treating apparatus for denitrogenating of waste water
JPS555733A (en) * 1978-06-30 1980-01-16 Chiyoda Chem Eng & Constr Co Ltd Method and apparatus for denitrification treatment of waste water

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5321863A (en) * 1976-08-13 1978-02-28 Dainippon Plastics Treating apparatus for denitrogenating of waste water
JPS555733A (en) * 1978-06-30 1980-01-16 Chiyoda Chem Eng & Constr Co Ltd Method and apparatus for denitrification treatment of waste water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102285717A (en) * 2011-03-21 2011-12-21 哈尔滨工业大学 Sewage denitrification method for quickly realizing synchronous short-cut nitrification-denitrification

Also Published As

Publication number Publication date
JPS5811278B2 (en) 1983-03-02

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