JPS5662591A - Processing and denitrification method for sewage - Google Patents

Processing and denitrification method for sewage

Info

Publication number
JPS5662591A
JPS5662591A JP13827979A JP13827979A JPS5662591A JP S5662591 A JPS5662591 A JP S5662591A JP 13827979 A JP13827979 A JP 13827979A JP 13827979 A JP13827979 A JP 13827979A JP S5662591 A JPS5662591 A JP S5662591A
Authority
JP
Japan
Prior art keywords
conglomeratic
layer
sewage
pipe
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
JP13827979A
Other languages
Japanese (ja)
Inventor
Tsutomu Arimizu
Shigeko Arimizu
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.)
OBAYASHI CHIEKO
OOHAYASHI CHIEKO
Original Assignee
OBAYASHI CHIEKO
OOHAYASHI CHIEKO
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 OBAYASHI CHIEKO, OOHAYASHI CHIEKO filed Critical OBAYASHI CHIEKO
Priority to JP13827979A priority Critical patent/JPS5662591A/en
Publication of JPS5662591A publication Critical patent/JPS5662591A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treatment Of Biological Wastes In General (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To denitrify sewage with a high removal rate, by providing a waveform conglomeratic layer on perforated pipes, which is provided on the bottom of the sewage channel in parallel with the shore or vertically to it, to gather sewage, which passed through the conglomeratic layer, to the perforated pipe.
CONSTITUTION: Sewage is treated for removing impurities and so on with net 4 and flows into conglomeratic layer 3 together with dissolved oxygen, ammonia, and nitric acid. Then, ammonia is nitrified, and the corresponding part is changed to nitrous acid and is next changed to nitric acid and is reduced to ammonia. The quantitative change depends upon the water temperature, pH, and the concentration. Nitric acid dispersed together with dissolved oxygen in conglomeratic layer 3 starts denitrification when dissolved oxygen is taken by microbes living on the surface of sediment and conglometrate in conglomeratic layer 3 to form the anaerobic state in the lower part of conglomeratic layer 3. This denitrified sewage is gathered by pipe 5 of tank 1. Since this device is easy to clog, it is exposed to air intermittently by diffusing pipe 6, and next, the outside and the inside of tank 1 are subjected to back washing by back washing pipe 7.
COPYRIGHT: (C)1981,JPO&Japio
JP13827979A 1979-10-27 1979-10-27 Processing and denitrification method for sewage Pending JPS5662591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13827979A JPS5662591A (en) 1979-10-27 1979-10-27 Processing and denitrification method for sewage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13827979A JPS5662591A (en) 1979-10-27 1979-10-27 Processing and denitrification method for sewage

Publications (1)

Publication Number Publication Date
JPS5662591A true JPS5662591A (en) 1981-05-28

Family

ID=15218190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13827979A Pending JPS5662591A (en) 1979-10-27 1979-10-27 Processing and denitrification method for sewage

Country Status (1)

Country Link
JP (1) JPS5662591A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023231A (en) * 1973-06-04 1975-03-12
JPS5117233A (en) * 1974-08-01 1976-02-12 Mitsubishi Rayon Co DENCHAKUTOSOHO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023231A (en) * 1973-06-04 1975-03-12
JPS5117233A (en) * 1974-08-01 1976-02-12 Mitsubishi Rayon Co DENCHAKUTOSOHO

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