JPS5493845A - Denitrifying apparatus for urinous liquid purifying tank - Google Patents

Denitrifying apparatus for urinous liquid purifying tank

Info

Publication number
JPS5493845A
JPS5493845A JP16019477A JP16019477A JPS5493845A JP S5493845 A JPS5493845 A JP S5493845A JP 16019477 A JP16019477 A JP 16019477A JP 16019477 A JP16019477 A JP 16019477A JP S5493845 A JPS5493845 A JP S5493845A
Authority
JP
Japan
Prior art keywords
tank
liquid
layer
sedimentation tank
aeration
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
JP16019477A
Other languages
Japanese (ja)
Inventor
Masanori Oshimibe
Yuzo Tsuda
Takeshi Namikoshi
Masahiro Yonezawa
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP16019477A priority Critical patent/JPS5493845A/en
Publication of JPS5493845A publication Critical patent/JPS5493845A/en
Pending 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 provide an apparatus for returning part of filthy water subjected to aeration into the layer of settled sludge or scum, which is also capable of applying denitrification treatment to the filthy water with no use of a special denitrification tank.
CONSTITUTION: Filthy water is introduced from filthy water inlet pipe 8 into a first sedimentation tank 3, where solid matters are separated into sludge layer or scum layer. Then, liquid component in the tank 3 is introduced via transfer pipe 9 into aeration tank 5, where it is aerated with air supplied from aerating means 12. Liquid thus purified is introduced into a second sedimentation tank 6 from the lower end of partition plate 4, and treated liquid is discharged via pipe 11 after it is treated in disinfecting tank 7. A portion of treated water subjected to aeration (containing nitric or nitrous nitrogen) is drawn from an upper portion of sedimentation tank 6 and introduced into sludge layer 16 in the first sedimentation tank 3 via pump 13, return pipe 14, whereby liquid is denitrified by denitrifying bacteria contained in the sludge layer 16.
COPYRIGHT: (C)1979,JPO&Japio
JP16019477A 1977-12-30 1977-12-30 Denitrifying apparatus for urinous liquid purifying tank Pending JPS5493845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16019477A JPS5493845A (en) 1977-12-30 1977-12-30 Denitrifying apparatus for urinous liquid purifying tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16019477A JPS5493845A (en) 1977-12-30 1977-12-30 Denitrifying apparatus for urinous liquid purifying tank

Publications (1)

Publication Number Publication Date
JPS5493845A true JPS5493845A (en) 1979-07-25

Family

ID=15709838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16019477A Pending JPS5493845A (en) 1977-12-30 1977-12-30 Denitrifying apparatus for urinous liquid purifying tank

Country Status (1)

Country Link
JP (1) JPS5493845A (en)

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