JPS55106598A - Device for biologically denitrifying waste water - Google Patents

Device for biologically denitrifying waste water

Info

Publication number
JPS55106598A
JPS55106598A JP1524279A JP1524279A JPS55106598A JP S55106598 A JPS55106598 A JP S55106598A JP 1524279 A JP1524279 A JP 1524279A JP 1524279 A JP1524279 A JP 1524279A JP S55106598 A JPS55106598 A JP S55106598A
Authority
JP
Japan
Prior art keywords
section
nitrifying
liquid
denitrifying
pump
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
JP1524279A
Other languages
Japanese (ja)
Other versions
JPS6231640B2 (en
Inventor
Katsuyuki Kataoka
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.)
Ebara Corp
Original Assignee
Ebara Infilco 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP1524279A priority Critical patent/JPS55106598A/en
Publication of JPS55106598A publication Critical patent/JPS55106598A/en
Publication of JPS6231640B2 publication Critical patent/JPS6231640B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To economize energy and raise the efficiency of denitrification, by circulating the both liquids in a denitrifying section and a nitrifying section communicating with each other, to the nitrifying section through a pump, introducing an O2-containing gas into a circulation passage and causing aeration.
CONSTITUTION: NH4-N-containing waste water such as night soil flows from a foul water inlet part 8 into a denitrifying section 1. NOx-N produced in a nitrifying section 2 is reduced into N2 by denitrifying bacteria while BOD in the waste water is used as an organic carbon source. The liquid 5 in the denitrifying section and the liquid 5' in the nitrifying section are circulated to the nitrifying section 2 by a circulation pump 4. After NH4-N in the circulated denitrified liquid is oxidized into NOx-N such as NO2-N or NO3-N by nitrifying bacteria and O2, the liquid is circulated to the denitrifying section 1 through a communication passage 3. O2-containing gas 7 such as air is introduced into the discharge pipe 6 of the pump 4. Aeration is caused by the fall of the pump discharge flow onto the surface of the liquid in the nitrifying section 2.
COPYRIGHT: (C)1980,JPO&Japio
JP1524279A 1979-02-13 1979-02-13 Device for biologically denitrifying waste water Granted JPS55106598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1524279A JPS55106598A (en) 1979-02-13 1979-02-13 Device for biologically denitrifying waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1524279A JPS55106598A (en) 1979-02-13 1979-02-13 Device for biologically denitrifying waste water

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP13310085A Division JPS6118499A (en) 1985-06-20 1985-06-20 Biological denitrification apparatus of waste water

Publications (2)

Publication Number Publication Date
JPS55106598A true JPS55106598A (en) 1980-08-15
JPS6231640B2 JPS6231640B2 (en) 1987-07-09

Family

ID=11883384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1524279A Granted JPS55106598A (en) 1979-02-13 1979-02-13 Device for biologically denitrifying waste water

Country Status (1)

Country Link
JP (1) JPS55106598A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164699A (en) * 1985-01-14 1986-07-25 Ataka Kogyo Kk Apparatus for treating nitrogen-containing undiluted sewage
CN102701453A (en) * 2012-06-13 2012-10-03 上海交通大学 Flow making device for improving denitrification efficiency of treatment system for ecological pond with agricultural non-point source
JP2014128784A (en) * 2012-11-27 2014-07-10 Sekisui Chem Co Ltd Membrane separation activated sludge treatment apparatus
KR101414519B1 (en) * 2013-01-04 2014-07-16 한국원자력연구원 Apparatus for treatment of wastewater including pre-adjustment zone

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164699A (en) * 1985-01-14 1986-07-25 Ataka Kogyo Kk Apparatus for treating nitrogen-containing undiluted sewage
JPH0451236B2 (en) * 1985-01-14 1992-08-18 Ataka Construction & Eng
CN102701453A (en) * 2012-06-13 2012-10-03 上海交通大学 Flow making device for improving denitrification efficiency of treatment system for ecological pond with agricultural non-point source
JP2014128784A (en) * 2012-11-27 2014-07-10 Sekisui Chem Co Ltd Membrane separation activated sludge treatment apparatus
KR101414519B1 (en) * 2013-01-04 2014-07-16 한국원자력연구원 Apparatus for treatment of wastewater including pre-adjustment zone

Also Published As

Publication number Publication date
JPS6231640B2 (en) 1987-07-09

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