JPS55142596A - Nitration of ammonia nitrogen - Google Patents

Nitration of ammonia nitrogen

Info

Publication number
JPS55142596A
JPS55142596A JP4923879A JP4923879A JPS55142596A JP S55142596 A JPS55142596 A JP S55142596A JP 4923879 A JP4923879 A JP 4923879A JP 4923879 A JP4923879 A JP 4923879A JP S55142596 A JPS55142596 A JP S55142596A
Authority
JP
Japan
Prior art keywords
gas
hollow fiber
membrane
oxygen
fiber membrane
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
JP4923879A
Other languages
Japanese (ja)
Other versions
JPS6335319B2 (en
Inventor
Hisao Onishi
Ryozo Numazawa
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP4923879A priority Critical patent/JPS55142596A/en
Publication of JPS55142596A publication Critical patent/JPS55142596A/en
Publication of JPS6335319B2 publication Critical patent/JPS6335319B2/ja
Granted 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

  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Activated Sludge Processes (AREA)

Abstract

PURPOSE: To make it possible to sufficiently supply oxygen even into an interior of a sludge layer, by a method wherein the sludge containing nitrating bacteria is supported to a hollow fiber membrane and oxygen is introduced into said membrane.
CONSTITUTION: A hollow fiber membrane of which an outer diameter is 0.01W 3mm, a pore diameter of a membrane wall is below 0.5μm and gas permeability is 100,000W300,00l/m2/hr./atm. (in a dry state) is used as a support for a sludge containing nitrating bacteria and, by introducing oxygen, oxygen and carbon dioxide gas, or a gas containing both gases into this hollow fiber membrane, said gas is supplied to a sludge layer formed on an external surface thereof through a membrane wall of said hollow fiber membrane. More particularly, a number of above- described hollow fiber membranes are bundled and bent, and a gas pipe is connected to an open end thereof to supply the gas.
COPYRIGHT: (C)1980,JPO&Japio
JP4923879A 1979-04-20 1979-04-20 Nitration of ammonia nitrogen Granted JPS55142596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4923879A JPS55142596A (en) 1979-04-20 1979-04-20 Nitration of ammonia nitrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4923879A JPS55142596A (en) 1979-04-20 1979-04-20 Nitration of ammonia nitrogen

Publications (2)

Publication Number Publication Date
JPS55142596A true JPS55142596A (en) 1980-11-07
JPS6335319B2 JPS6335319B2 (en) 1988-07-14

Family

ID=12825295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4923879A Granted JPS55142596A (en) 1979-04-20 1979-04-20 Nitration of ammonia nitrogen

Country Status (1)

Country Link
JP (1) JPS55142596A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1085787A (en) * 1996-09-10 1998-04-07 Suido Kiko Kaisha Ltd Method and apparatus for nitrification-denitrification treatment.
JP2007537041A (en) * 2004-05-14 2007-12-20 ノースウエスタン ユニバーシティ Method and system for complete nitrogen removal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2524024A (en) * 2014-03-11 2015-09-16 Univ Dublin An aerated biofilm reactor fibre membrane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1085787A (en) * 1996-09-10 1998-04-07 Suido Kiko Kaisha Ltd Method and apparatus for nitrification-denitrification treatment.
JP2007537041A (en) * 2004-05-14 2007-12-20 ノースウエスタン ユニバーシティ Method and system for complete nitrogen removal

Also Published As

Publication number Publication date
JPS6335319B2 (en) 1988-07-14

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